Jump to Main Content
PubAg
Main content area
Search
« Previous 
1  100 of 1,166

Next »
Search Results
 Author:
 Niknam, Taher; Meymand, Hamed Zeinoddini; Mojarrad, Hasan Doagou
 Source:
 Energy 2011 v.36 no.1 pp. 119132
 ISSN:
 03605442
 Subject:
 algorithms, etc ; air pollution; electric power; electricity; energy; energy costs; fuel cells; new methods; power plants; Show all 9 Subjects
 Abstract:
 ... This paper presents an interactive fuzzy satisfying method based on Hybrid Modified Honey Bee Mating Optimization (HMHBMO). Its purpose is to solve the Multiobjective Optimal Operation Management (MOOM) problem which can be affected by Fuel cell power plants (FCPPs). Minimizing total electrical energy losses, total electrical energy cost, total pollutant emission produced by sources and deviation ...
 DOI:
 10.1016/j.energy.2010.10.062

http://dx.doi.org/10.1016/j.energy.2010.10.062
 Author:
 Basu, M.
 Source:
 Energy 2011 v.36 no.1 pp. 606612
 ISSN:
 03605442
 Subject:
 algorithms, etc ; power generation; power plants; Show all 3 Subjects
 Abstract:
 ... This paper presents artificial immune system for optimal scheduling of thermal plants in coordination with fixed head hydro units. Numerical results of two test systems have been presented to demonstrate the performance of the proposed algorithm. The results obtained from the proposed algorithm are compared with those obtained from differential evolution, particle swarm optimization and evolutiona ...
 DOI:
 10.1016/j.energy.2010.09.057

http://dx.doi.org/10.1016/j.energy.2010.09.057
 Author:
 Chang, HsuehHsien
 Source:
 Energy 2011 v.36 no.1 pp. 181190
 ISSN:
 03605442
 Subject:
 algorithms, etc ; air pollution; cogeneration systems; energy; energy costs; fuels; neural networks; new methods; Show all 8 Subjects
 Abstract:
 ... By integrating neural networks (NNs) with turnon transient energy analysis, this work attempts to recognize demand load, including the buyers’ load on the power systems and the internal load on the cogeneration systems, thereby increasing the recognition accuracy in a nonintrusive energy management (NIEM) system. Analysis results reveal that an NIEM system and a new method that is based on genet ...
 DOI:
 10.1016/j.energy.2010.10.054

http://dx.doi.org/10.1016/j.energy.2010.10.054
 Author:
 Mohamed, M.H.; Janiga, G.; Pap, E.; Thévenin, D.
 Source:
 Energy 2011 v.36 no.1 pp. 438446
 ISSN:
 03605442
 Subject:
 algorithms, etc ; air flow; energy conversion; equipment design; equipment performance; oceans; turbines; water power; water waves; Show all 9 Subjects
 Abstract:
 ... Wells turbine is one of the technical systems allowing an efficient use of the power contained in oceans’ and seas’ waves with a relatively low investment level. It converts the pneumatic power of the air stream induced by an Oscillating Water Column into mechanical energy. The standard Wells turbines show several wellknown disadvantages: low tangential force, leading to low power output from the ...
 DOI:
 10.1016/j.energy.2010.10.021

http://dx.doi.org/10.1016/j.energy.2010.10.021
 Author:
 Xia, Shaojun; Chen, Lingen; Sun, Fengrui
 Source:
 Energy 2011 v.36 no.1 pp. 633646
 ISSN:
 03605442
 Subject:
 algorithms, etc ; dynamic programming; energy; equations; heat transfer; temperature; Show all 6 Subjects
 Abstract:
 ... A multistage irreversible Carnot heat engine system operating between a finite thermal capacity hightemperature fluid reservoir and an infinite thermal capacity lowtemperature environment with generalized convective heat transfer law [q∝(ΔT)ᵐ] and the irreversibility of heat resistance and internal dissipation is investigated in this paper. Optimal control theory is applied to derive the continu ...
 DOI:
 10.1016/j.energy.2010.09.052

http://dx.doi.org/10.1016/j.energy.2010.09.052
 Author:
 Niknam, Taher; Mojarrad, Hasan Doagou; Meymand, Hamed Zeinoddini; Firouzi, Bahman Bahmani
 Source:
 Energy 2011 v.36 no.2 pp. 896908
 ISSN:
 03605442
 Subject:
 algorithms, etc ; electricity; energy costs; honey bees; methodology; Show all 5 Subjects
 Abstract:
 ... The nonstorage characteristics of electricity and the increasing fuel costs worldwide call for the need to operate the systems more economically. Economic dispatch (ED) is one of the most important optimization problems in power systems. ED has the objective of dividing the power demand among the online generators economically while satisfying various constraints. The importance of economic dispa ...
 DOI:
 10.1016/j.energy.2010.12.021

http://dx.doi.org/10.1016/j.energy.2010.12.021
 Author:
 Liao, GwoChing
 Source:
 Energy 2011 v.36 no.2 pp. 10181029
 ISSN:
 03605442
 Subject:
 algorithms, etc ; econometric models; energy; energy conservation; power generation; wind power; Show all 6 Subjects
 Abstract:
 ... An optimization algorithm is proposed in this paper to solve the economic dispatch problem that includes wind farm using the Chaotic Quantum Genetic Algorithm (CQGA). In addition to the detailed models of economic dispatch introduction and their associated constraints, the wind power effect is also included in this paper. The chaotic quantum genetic algorithm used to solve the economic dispatch pr ...
 DOI:
 10.1016/j.energy.2010.12.006

http://dx.doi.org/10.1016/j.energy.2010.12.006
 Author:
 Azad, Abazar Vahdat; Amidpour, Majid
 Source:
 Energy 2011 v.36 no.2 pp. 10871096
 ISSN:
 03605442
 Subject:
 algorithms, etc ; capital; energy costs; equipment design; equipment performance; heat exchangers; heat transfer; heat transfer coefficient; mathematical models; new methods; Show all 10 Subjects
 Abstract:
 ... In this paper, the new approach of constructal theory has been employed to design shell and tube heat exchangers. Constructal theory is a new method for optimal design in engineering applications. The purpose of this paper is optimization of shell and tube heat exchangers by reduction of total cost of the exchanger using the constructal theory. The total cost of the heat exchanger is the sum of op ...
 DOI:
 10.1016/j.energy.2010.11.041

http://dx.doi.org/10.1016/j.energy.2010.11.041
 Author:
 Lubritto, C.; Petraglia, A.; Vetromile, C.; Curcuruto, S.; Logorelli, M.; Marsico, G.; D’Onofrio, A.
 Source:
 Energy 2011 v.36 no.2 pp. 11091114
 ISSN:
 03605442
 Subject:
 algorithms, etc ; air conditioning; economic resources; electricity; energy; energy use and consumption; environmental impact; renewable energy sources; telecommunications; Show all 9 Subjects
 Abstract:
 ... The reduction of the energy consumptions of a Telecommunication Power System represents one of the critical factors of the telecommunication technologies, both to allow a sizeable saving of economic resources and to realize “sustainable” development actions. The consumption of about one hundred base stations for mobile phones were monitored for a total of over one thousand days, in order to study ...
 DOI:
 10.1016/j.energy.2010.11.039

http://dx.doi.org/10.1016/j.energy.2010.11.039
 Author:
 Kim, M.K.; Park, J.K.; Nam, Y.W.
 Source:
 Energy 2011 v.36 no.2 pp. 12551264
 ISSN:
 03605442
 Subject:
 algorithms, etc ; electricity; markets; prices; Show all 4 Subjects
 Abstract:
 ... This paper presents a novel technique for representing system security in the operation of decentralized electricity markets, with special emphasis on voltage stability. The marketclearing algorithm is modeled as voltage stability constrainedoptimal power flow (VSCOPF) problem for providing market solutions by means of a function of complying with the required voltage stability criteria. Bender ...
 DOI:
 10.1016/j.energy.2010.11.019

http://dx.doi.org/10.1016/j.energy.2010.11.019
 Author:
 Querol, E.; GonzalezRegueral, B.; Ramos, A.; PerezBenedito, J.L.
 Source:
 Energy 2011 v.36 no.2 pp. 964974
 ISSN:
 03605442
 Subject:
 algorithms, etc ; air; exergy; heat; streams; Show all 5 Subjects
 Abstract:
 ... A visual basic application for Microsoft® Excel 2007 has been developed as a helpful tool to perform mass, energy, exergy and thermoeconomic (MHBT) calculations during the systematic analysis of energy processes simulated with Aspen Plus®. The application reads an Excel workbook containing three sheets with the matter, work and heat streams results of an Aspen Plus® simulation. The required inform ...
 DOI:
 10.1016/j.energy.2010.12.013

http://dx.doi.org/10.1016/j.energy.2010.12.013
 Author:
 Diaconu, Bogdan M.; Varga, Szabolcs; Oliveira, Armando C.
 Source:
 Energy 2011 v.36 no.2 pp. 12801291
 ISSN:
 03605442
 Subject:
 algorithms, etc ; air conditioning; cold; cold storage; cooling; energy; equipment design; equipment performance; mathematical models; solar collectors; solar energy; temperature; Algeria; Show all 13 Subjects
 Abstract:
 ... Indoor space cooling represents a large potential for solar energy use due to the relative coincidence between energy availability and cooling demand. Solarassisted air conditioning (AC) applications emerged with the development of high efficiency solar collectors. Energy storage (hot or cold) must be implemented for solarassisted AC applications when cooling demand is present during intervals w ...
 DOI:
 10.1016/j.energy.2010.11.015

http://dx.doi.org/10.1016/j.energy.2010.11.015
 Author:
 Sanaye, Sepehr; Fardad, Abbasali; Mostakhdemi, Masoud
 Source:
 Energy 2011 v.36 no.2 pp. 10571067
 ISSN:
 03605442
 Subject:
 algorithms, etc ; absorption; air; ambient temperature; capital; cooling; cooling systems; energy costs; exergy; ice; mass flow; refrigeration; systems engineering; turbines; vapors; Show all 15 Subjects
 Abstract:
 ... The gas turbine power output and efficiency decrease with increasing ambient temperature. With compressor inlet air cooling, the air density and mass flow rate as well as the gas turbine net power output increase. The inlet cooling techniques include vapor or absorption refrigeration systems, evaporative cooling systems and thermal energy storage (TES) systems. In this paper the thermoeconomic ana ...
 DOI:
 10.1016/j.energy.2010.12.002

http://dx.doi.org/10.1016/j.energy.2010.12.002
 Author:
 Shi, Xing
 Source:
 Energy 2011 v.36 no.3 pp. 16591667
 ISSN:
 03605442
 Subject:
 algorithms, etc ; case studies; design for environment; energy; insulating materials; China; Show all 6 Subjects
 Abstract:
 ... Architectural design is a process to find the best solution to satisfy various design criteria. To achieve sustainable and green design, performance simulations are often used to verify these criteria and modify the design. The conventional approach of manual trialanderror is too timeconsuming to be practical. Introducing optimization technique can greatly improve the design efficiency and help ...
 DOI:
 10.1016/j.energy.2010.12.064

http://dx.doi.org/10.1016/j.energy.2010.12.064
 Author:
 Pican, E.; Omerdic, E.; Toal, D.; Leahy, M.
 Source:
 Energy 2011 v.36 no.3 pp. 15431553
 ISSN:
 03605442
 Subject:
 algorithms, etc ; diesel engines; electric generators; farms; manufacturing; models; renewable energy sources; wind; wind turbines; Show all 9 Subjects
 Abstract:
 ... Stringent grid codes imposed by transmission system operators (TSOs) have led wind turbine manufacturers to overdesign their products. As an individual power generator, each single wind turbine has to meet those regulations. However, in a “farm” like configuration, a different approach can be taken. This paper describes how renewable energy generator units can be simplified in order to bring manuf ...
 DOI:
 10.1016/j.energy.2011.01.006

http://dx.doi.org/10.1016/j.energy.2011.01.006
 Author:
 CarroCalvo, L.; SalcedoSanz, S.; KirchnerBossi, N.; PortillaFigueras, A.; Prieto, L.; GarciaHerrera, R.; HernándezMartín, E.
 Source:
 Energy 2011 v.36 no.3 pp. 15711581
 ISSN:
 03605442
 Subject:
 algorithms, etc ; business enterprises; mutation; prediction; wind speed; Iberian Peninsula; Spain; Show all 7 Subjects
 Abstract:
 ... In this paper we present an evolutionary approach for the problem of discovering pressure patterns under a quality measure related to wind speed and direction. This clustering problem is specially interesting for companies involving in the management of wind farms, since it can be useful for analysis of results of the wind farm in a given period and also for longterm wind speed prediction. The pr ...
 DOI:
 10.1016/j.energy.2011.01.001

http://dx.doi.org/10.1016/j.energy.2011.01.001
 Author:
 Sakthivel, V.P.; Subramanian, S.
 Source:
 Energy 2011 v.36 no.3 pp. 17131720
 ISSN:
 03605442
 Subject:
 algorithms, etc ; energy; energy conservation; industry; torque; Show all 5 Subjects
 Abstract:
 ... Onsite efficiency determination of induction motor is essential in industrial plants for saving the energy consumption. This paper presents a new application of particle swarm optimization (PSO) approach for field efficiency evaluation of induction motor based on a modified induction motor equivalent circuit. The strayload loss is considered in the equivalent circuit by adding an equivalent resi ...
 DOI:
 10.1016/j.energy.2010.12.057

http://dx.doi.org/10.1016/j.energy.2010.12.057
 Author:
 Liu, Feng Jiao; Chang, Tian Pau
 Source:
 Energy 2011 v.36 no.3 pp. 18201826
 ISSN:
 03605442
 Subject:
 algorithms, etc ; cumulative distribution; entropy; probability; wind power; wind speed; Taiwan; Show all 7 Subjects
 Abstract:
 ... Knowing about wind speed distribution for a specific site is very essential step in wind resource utilizations. In this paper, a probability density function with the maximum entropy principle is derived using different algorithm from previous studies. Its validity considering various numbers of moment constraints is tested and compared with the conventional Weibull function in terms of computatio ...
 DOI:
 10.1016/j.energy.2010.11.033

http://dx.doi.org/10.1016/j.energy.2010.11.033
 Author:
 Sun, Fengchun; Hu, Xiaosong; Zou, Yuan; Li, Siguang
 Source:
 Energy 2011 v.36 no.5 pp. 35313540
 ISSN:
 03605442
 Subject:
 algorithms, etc ; batteries; covariance; vehicles (equipment); Show all 4 Subjects
 Abstract:
 ... An accurate battery State of Charge estimation is of great significance for battery electric vehicles and hybrid electric vehicles. This paper presents an adaptive unscented Kalman filtering method to estimate State of Charge of a lithiumion battery for battery electric vehicles. The adaptive adjustment of the noise covariances in the State of Charge estimation process is implemented by an idea o ...
 DOI:
 10.1016/j.energy.2011.03.059

http://dx.doi.org/10.1016/j.energy.2011.03.059
 Author:
 Wang, Jianhui; Zhou, Zhi; Botterud, Audun
 Source:
 Energy 2011 v.36 no.5 pp. 34593467
 ISSN:
 03605442
 Subject:
 algorithms, etc ; business enterprises; electricity; markets; models; probability distribution; Show all 6 Subjects
 Abstract:
 ... In this paper we propose an evolutionary imperfect information game approach to analyzing bidding strategies in electricity markets with priceelastic demand. In previous research, opponent generation companies’ (GENCOs’) bidding strategies were assumed to be fixed or subject to a fixed probability distribution. In contrast, the adaptive and learning agents in the presented model can dynamically u ...
 DOI:
 10.1016/j.energy.2011.03.050

http://dx.doi.org/10.1016/j.energy.2011.03.050
 Author:
 Wang, YawJuen; Hsu, PoChun
 Source:
 Energy 2011 v.36 no.5 pp. 30693078
 ISSN:
 03605442
 Subject:
 algorithms, etc ; comb honey; equations; shade; solar collectors; Show all 5 Subjects
 Abstract:
 ... Partial shading is a commonly encountered issue in a PV (photovoltaic) system. In this paper, five different connection configurations of PV cells are studied to compare their performance under the condition of partial shading. They are SS (simple series), SP (seriesparallel), TCT (totalcrosstied), BL (bridgelinked) and HC (honey comb) configurations. The electric network of each connection co ...
 DOI:
 10.1016/j.energy.2011.02.052

http://dx.doi.org/10.1016/j.energy.2011.02.052
 Author:
 Malekpour, Ahmad Reza; Niknam, Taher
 Source:
 Energy 2011 v.36 no.5 pp. 34773488
 ISSN:
 03605442
 Subject:
 algorithms, etc ; business enterprises; economic analysis; electric power; electricity; emissions; energy; fuel cells; model uncertainty; planning; power generation; power plants; system optimization; utilities; wind power; wind speed; Show all 16 Subjects
 Abstract:
 ... At the moment, due to technology improvements and governmental incentives for the use of green energies, Renewable Energy Sources (RESs) appears to be a promising approach for electricity generation. This motivates the implementation of Wind Farms (WFs) and Fuel Cell Power Plants (FCPPs) over a mass scale by Distribution Companies (DisCos). As RESs become a larger and larger portion of the generat ...
 DOI:
 10.1016/j.energy.2011.03.052

http://dx.doi.org/10.1016/j.energy.2011.03.052
 Author:
 Lu, Ning; Qin, Jun; Yang, Kun; Sun, Jiulin
 Source:
 Energy 2011 v.36 no.5 pp. 31793188
 ISSN:
 03605442
 Subject:
 algorithms, etc ; altitude; data collection; neural networks; remote sensing; renewable energy sources; solar radiation; space and time; China; Show all 9 Subjects
 Abstract:
 ... Surface global solar radiation (GSR) is the primary renewable energy in nature. Geostationary satellite data are used to map GSR in many inversion algorithms in which ground GSR measurements merely serve to validate the satellite retrievals. In this study, a simple algorithm with artificial neural network (ANN) modeling is proposed to explore the nonlinear physical relationship between ground dai ...
 DOI:
 10.1016/j.energy.2011.03.007

http://dx.doi.org/10.1016/j.energy.2011.03.007
 Author:
 Partovi, Farzad; Nikzad, Mehdi; Mozafari, Babak; Ranjbar, Ali Mohamad
 Source:
 Energy 2011 v.36 no.5 pp. 31303137
 ISSN:
 03605442
 Subject:
 algorithms, etc ; computer software; energy; linear programming; markets; models; spinning; Show all 7 Subjects
 Abstract:
 ... In this paper a new algorithm for allocating energy and determining the optimum amount of network active power reserve capacity and the share of generating units and demand side contribution in providing reserve capacity requirements for dayahead market is presented. In the proposed method, the optimum amount of reserve requirement is determined based on network security set by operator. In this ...
 DOI:
 10.1016/j.energy.2011.03.002

http://dx.doi.org/10.1016/j.energy.2011.03.002
 Author:
 Soltani, Hadi; Shafiei, Sirous
 Source:
 Energy 2011 v.36 no.5 pp. 23812391
 ISSN:
 03605442
 Subject:
 algorithms, etc ; decision making; energy recovery; heat exchangers; linear programming; motivation; pumps; streams; temperature; Show all 9 Subjects
 Abstract:
 ... This research is trying to develop a new procedure for retrofit of HENs including pressure drop using genetic algorithm (GA) coupled with linear programming (LP) and integer linear programming (ILP) methods. The GA is used to produce structural modifications whereas continuous variables are handled using a converted NLP formulation for Maximum Energy Recovery (MER). The converted NLP consists of a ...
 DOI:
 10.1016/j.energy.2011.01.017

http://dx.doi.org/10.1016/j.energy.2011.01.017
 Author:
 Meng, Ming; Niu, Dongxiao
 Source:
 Energy 2011 v.36 no.5 pp. 33553359
 ISSN:
 03605442
 Subject:
 algorithms, etc ; carbon; carbon dioxide; combustion; energy policy; equations; fossil fuels; greenhouse effect; greenhouse gas emissions; industry; linear models; risk; China; Show all 13 Subjects
 Abstract:
 ... CO₂ emissions from fossil fuel combustion have been known to contribute to the greenhouse effect. Research on emission trends and further forecasting their further values is important for adjusting energy policies, particularly those relative to low carbon. Except for a few countries, the main figures of CO₂ emission from fossil fuel combustion in other countries are Sshaped curves. The logistic ...
 DOI:
 10.1016/j.energy.2011.03.032

http://dx.doi.org/10.1016/j.energy.2011.03.032
 Author:
 Kim, HyunMin; Moon, MiAe; Kim, KwangYong
 Source:
 Energy 2011 v.36 no.5 pp. 34193428
 ISSN:
 03605442
 Subject:
 algorithms, etc ; cooling; friction; heat transfer; kriging; models; prediction; turbulent flow; Show all 8 Subjects
 Abstract:
 ... The present work deals with a numerical procedure for optimizing a cooling channel with staggered elliptic dimples to enhance heat transfer and also to reduce the pressure loss. Threedimensional Reynoldsaveraged Navier–Stokes analysis is employed in conjunction with the SST model for predicting the turbulent flow and heat transfer. Three nondimensional geometric design variables, such as the el ...
 DOI:
 10.1016/j.energy.2011.03.043

http://dx.doi.org/10.1016/j.energy.2011.03.043
 Author:
 Kusiak, Andrew; Tang, Fan; Xu, Guanglin
 Source:
 Energy 2011 v.36 no.5 pp. 24402449
 ISSN:
 03605442
 Subject:
 algorithms, etc ; air; air conditioning; air quality; air temperature; data collection; energy; heat; models; Show all 9 Subjects
 Abstract:
 ... A datamining approach for the optimization of a HVAC (heating, ventilation, and air conditioning) system is presented. A predictive model of the HVAC system is derived by datamining algorithms, using a dataset collected from an experiment conducted at a research facility. To minimize the energy while maintaining the corresponding IAQ (indoor air quality) within a userdefined range, a multiobje ...
 DOI:
 10.1016/j.energy.2011.01.030

http://dx.doi.org/10.1016/j.energy.2011.01.030
 Author:
 Behrang, M.A.; Assareh, E.; Noghrehabadi, A.R.; Ghanbarzadeh, A.
 Source:
 Energy 2011 v.36 no.5 pp. 30363049
 ISSN:
 03605442
 Subject:
 algorithms, etc ; case studies; cities; latitude; model validation; models; prediction; regression analysis; solar radiation; Iran; Show all 10 Subjects
 Abstract:
 ... PSO (particle swarm optimization) technique is applied to estimate monthly average daily GSR (global solar radiation) on horizontal surface for different regions of Iran. To achieve this, five new models were developed as well as six models were chosen from the literature. First, for each city, the empirical coefficients for all models were separately determined using PSO technique. The results in ...
 DOI:
 10.1016/j.energy.2011.02.048

http://dx.doi.org/10.1016/j.energy.2011.02.048
 Author:
 Arslan, Oguz
 Source:
 Energy 2011 v.36 no.5 pp. 25282534
 ISSN:
 03605442
 Subject:
 algorithms, etc ; electricity; enthalpy; neural networks; neurons; power generation; temperature; working conditions; Show all 8 Subjects
 Abstract:
 ... Recent technical developments have made it possible to generate electricity from geothermal resources of low and medium enthalpy. One of these technologies is the Kalina Cycle System. In this study, electricity generation from Simav geothermal field was investigated using the Kalina cycle system34 (KCS34). However, the design of these technologies requires more proficiency and longer times withi ...
 DOI:
 10.1016/j.energy.2011.01.045

http://dx.doi.org/10.1016/j.energy.2011.01.045
 Author:
 Reddy, S. Surender; Abhyankar, A.R.; Bijwe, P.R.
 Source:
 Energy 2011 v.36 no.5 pp. 35793589
 ISSN:
 03605442
 Subject:
 algorithms, etc ; models; prices; Show all 3 Subjects
 Abstract:
 ... This paper presents a new multiobjective optimization based reactive power price clearing (RPPC) mechanism, considering voltage stability. Use of realistic voltage dependent load models is important in power system analysis and optimization. The influence of the same on RPPC is investigated in this paper. Investigations have also been carried out to ascertain the effectiveness of objectives such ...
 DOI:
 10.1016/j.energy.2011.03.070

http://dx.doi.org/10.1016/j.energy.2011.03.070
 Author:
 Kargarian, A.; Raoofat, M.
 Source:
 Energy 2011 v.36 no.5 pp. 25652571
 ISSN:
 03605442
 Subject:
 algorithms, etc ; Monte Carlo method; market power; markets; power generation; wind power; wind speed; Show all 7 Subjects
 Abstract:
 ... While wind power generation is growing rapidly around the globe; its stochastic nature affects the system operation in many different aspects. In this paper, the impact of wind power volatility on the reactive power market is taken into account. The paper presents a novel stochastic method for optimal reactive power market clearing considering voltage security and volatile nature of the wind. The ...
 DOI:
 10.1016/j.energy.2011.01.051

http://dx.doi.org/10.1016/j.energy.2011.01.051
 Author:
 Liu, FengJiao; Chen, PaiHsun; Kuo, ShyiShiun; Su, DeChuan; Chang, TianPau; Yu, YuHua; Lin, TsungChi
 Source:
 Energy 2011 v.36 no.5 pp. 26112619
 ISSN:
 03605442
 Subject:
 algorithms, etc ; case studies; energy; probability; solar energy; solar radiation; spring; wind power; wind speed; winter; Taiwan; Show all 11 Subjects
 Abstract:
 ... In this paper, the genetic algorithm (GA) is originally applied to compute the Weibull parameters for wind characterization analysis, in which an objective function required in GA for searching optimization solution has been first defined as well. Wind data analyzed are observed at a wind farm in the Taiwan Strait from 2006 to 2008. To accurately describe wind speed distribution three kinds of pro ...
 DOI:
 10.1016/j.energy.2011.02.001

http://dx.doi.org/10.1016/j.energy.2011.02.001
 Author:
 Triana, Cristian F.; Quintero, Julián A.; Agudelo, Roberto A.; Cardona, Carlos A.; Higuita, Juan C.
 Source:
 Energy 2011 v.36 no.7 pp. 41824190
 ISSN:
 03605442
 Subject:
 algorithms, etc ; biomass; energy; energy costs; environmental impact; ethanol; ethanol fuels; ethanol production; lignin; lignocellulose; pollution; raw materials; reducing sugars; sulfuric acid; waste reduction; Show all 15 Subjects
 Abstract:
 ... Coffee cutstems (CCS) represent a promising candidate for fuel ethanol production in tropical countries because of their high availability and high biomass yield per hectare. In this work, pretreatment of this agricultural residue with dilute sulfuric acid and liquid hot water (LHW) was integrated in the simulation and economic assessment of the process for fuel ethanol production. High reducing ...
 DOI:
 10.1016/j.energy.2011.04.025

http://dx.doi.org/10.1016/j.energy.2011.04.025
 Author:
 Amani, E.; Nobari, M.R.H.
 Source:
 Energy 2011 v.36 no.8 pp. 49094918
 ISSN:
 03605442
 Subject:
 algorithms, etc ; Reynolds number; energy; entropy; equations; heat transfer; momentum; pipes; temperature; Show all 9 Subjects
 Abstract:
 ... In this study, developing incompressible viscous flow and heat transfer in the curved pipes are studied numerically to analyze the entropy generation and thermodynamic optimization in the entrance region at a constant wall temperature. The governing equations including continuity, momentum and energy equations are solved using a second order finite difference method based on the projection algorit ...
 DOI:
 10.1016/j.energy.2011.05.035

http://dx.doi.org/10.1016/j.energy.2011.05.035
 Author:
 Leonardi, Erminia; D’Aguanno, Bruno
 Source:
 Energy 2011 v.36 no.8 pp. 48284837
 ISSN:
 03605442
 Subject:
 algorithms, etc ; computer software; shade; solar collectors; solar energy; Show all 5 Subjects
 Abstract:
 ... The analysis of the solar power collected at the receiver in solar tower systems requires the use of efficient and accurate numerical codes. This paper presents a new Fortran computer program, CRS42 (an acronym for Crs4 Research Software for Central Receiver Solar System SimulationS), for the simulation of the optical performance of a central receiver solar plant. The implemented mathematical alg ...
 DOI:
 10.1016/j.energy.2011.05.017

http://dx.doi.org/10.1016/j.energy.2011.05.017
 Author:
 RangelHernandez, V.H.; DamianAscencio, C.; JuarezRobles, D.; GallegosMuñoz, A.; ZaletaAguilar, A.; PlascenciaMora, H.
 Source:
 Energy 2011 v.36 no.8 pp. 48644870
 ISSN:
 03605442
 Subject:
 algorithms, etc ; entropy; fuel cells; heat transfer; mass transfer; Show all 5 Subjects
 Abstract:
 ... The present paper aims at investigating the main sources of irreversibility in a Proton Exchange Membrane Fuel Cell (PEMFC) using a Fermat spiral as flow distributor and also to direct possible improvements in its design. The numerical analysis is based on a finite volume technique with a SIMPLE algorithm as numerical procedure. In order to have a more complete and rigorous analysis a new dimensio ...
 DOI:
 10.1016/j.energy.2011.05.031

http://dx.doi.org/10.1016/j.energy.2011.05.031
 Author:
 Pereira, Adelino J.C.; Saraiva, João Tomé
 Source:
 Energy 2011 v.36 no.8 pp. 51805199
 ISSN:
 03605442
 Subject:
 algorithms, etc ; case studies; electricity; electricity costs; fuels; markets; models; planning; prices; profits and margins; Show all 10 Subjects
 Abstract:
 ... This paper presents a model to solve the Generation Expansion Planning (GEP), problem in competitive electricity markets. The developed approach recognizes the presence of several generation agents aiming at maximizing their profits and that the planning environment is influenced by uncertainties affecting the demand, fuel prices, investment and maintenance costs and the electricity price. Several ...
 DOI:
 10.1016/j.energy.2011.06.021

http://dx.doi.org/10.1016/j.energy.2011.06.021
 Author:
 Nafar, M.; Gharehpetian, G.B.; Niknam, T.
 Source:
 Energy 2011 v.36 no.8 pp. 48484854
 ISSN:
 03605442
 Subject:
 algorithms, etc ; insulating materials; models; system optimization; Show all 4 Subjects
 Abstract:
 ... Metal Oxide Surge Arrester (MOSA) accurate modeling and its parameter identification are very important aspects for arrester allocation, system reliability determination and insulation coordination studies. In this paper, Modified Particle Swarm Optimization (MPSO) algorithm is used to estimate the parameters of surge arrester models. The convergence to the local optima is often a drawback of the ...
 DOI:
 10.1016/j.energy.2011.05.021

http://dx.doi.org/10.1016/j.energy.2011.05.021
 Author:
 Obara, Shin’ya; Watanabe, Seizi; Rengarajan, Balaji
 Source:
 Energy 2011 v.36 no.8 pp. 52005213
 ISSN:
 03605442
 Subject:
 algorithms, etc ; cold; energy balance; fuel cells; greenhouse gas emissions; heat; heat pumps; photovoltaic cells; solar energy; Show all 9 Subjects
 Abstract:
 ... A completely energyindependent microgrid (green microgrid) was examined in this work with the aims of abating greenhouse gas emissions by spreading the use of green energy, providing energy backup systems for disaster, and increasing the energy utilization efficiency with the use of exhaust heat. This paper analyzed the energy supply to six houses in a cold region. The green microgrid consisted o ...
 DOI:
 10.1016/j.energy.2011.06.022

http://dx.doi.org/10.1016/j.energy.2011.06.022
 Author:
 Rajkumar, R.K.; Ramachandaramurthy, V.K.; Yong, B.L.; Chia, D.B.
 Source:
 Energy 2011 v.36 no.8 pp. 51485153
 ISSN:
 03605442
 Subject:
 algorithms, etc ; batteries; computer software; cost effectiveness; energy; fuzzy logic; probability; renewable energy sources; wind; Show all 9 Subjects
 Abstract:
 ... High cost of renewable energy systems has led to its slow adoption in many countries. Hence, it is vital to select an appropriate size of the system in order to reduce the cost and excess energy produced as well as to maximize the available resources. The sizing of hybrid system must satisfy the LPSP (Loss of Power Supply Probability) which determines the ability of the system to meet the load req ...
 DOI:
 10.1016/j.energy.2011.06.017

http://dx.doi.org/10.1016/j.energy.2011.06.017
 Author:
 Hong, WeiChiang
 Source:
 Energy 2011 v.36 no.9 pp. 55685578
 ISSN:
 03605442
 Subject:
 algorithms, etc ; Apoidea; climate; honey bees; neural networks; regression analysis; Show all 6 Subjects
 Abstract:
 ... Support vector regression (SVR), with hybrid chaotic sequence and evolutionary algorithms to determine suitable values of its three parameters, not only can effectively avoid converging prematurely (i.e., trapping into a local optimum), but also reveals its superior forecasting performance. Electric load sometimes demonstrates a seasonal (cyclic) tendency due to economic activities or climate cycl ...
 DOI:
 10.1016/j.energy.2011.07.015

http://dx.doi.org/10.1016/j.energy.2011.07.015
 Author:
 Behrang, M.A.; Assareh, E.; Ghalambaz, M.; Assari, M.R.; Noghrehabadi, A.R.
 Source:
 Energy 2011 v.36 no.9 pp. 56495654
 ISSN:
 03605442
 Subject:
 algorithms, etc ; energy; equations; exports; imports; industry; models; oils; socioeconomics; Iran; Show all 10 Subjects
 Abstract:
 ... Growing energy demand of the world, made the major oil and gas exporting countries to have critical role in the energy supply. The geostrategic situation of Iran and its access to the huge hydrocarbon resources placed the country among important areas and resulted in the investment development of oil and gas industry. In this study, a novel approach for oil consumption modeling is presented. Three ...
 DOI:
 10.1016/j.energy.2011.07.002

http://dx.doi.org/10.1016/j.energy.2011.07.002
 Author:
 Rashidi, M.M.; Galanis, N.; Nazari, F.; Basiri Parsa, A.; Shamekhi, L.
 Source:
 Energy 2011 v.36 no.9 pp. 57285740
 ISSN:
 03605442
 Subject:
 algorithms, etc ; Apoidea; computer software; engineering; equations; exergy; heaters; neural networks; pumps; Show all 9 Subjects
 Abstract:
 ... The present work concerns the parametric study and optimization of regenerative Clausius and organic Rankine cycles (ORC) with two feedwater heaters. For the parametric optimization, thermal efficiency, exergy efficiency and specific work are selected as the objective functions, so the mentioned parameters are calculated for different values of the outlet pressures from the second and third pumps ...
 DOI:
 10.1016/j.energy.2011.06.036

http://dx.doi.org/10.1016/j.energy.2011.06.036
 Author:
 Yaşar, Celal; Özyön, Serdar
 Source:
 Energy 2011 v.36 no.10 pp. 58385845
 ISSN:
 03605442
 Subject:
 algorithms, etc ; equipment; valves (equipment); Show all 3 Subjects
 Abstract:
 ... In literature, economic dispatch problems are generally categorized as convex and nonconvex optimization problems. In this study, a solution is proposed for economic dispatch problem with valve point effect, which is one of the nonconvex optimization problems. For this reason the hybrid approach used for solution of this problem is formed as a combination of modified subgradient (MSG) and harmony ...
 DOI:
 10.1016/j.energy.2011.08.041

http://dx.doi.org/10.1016/j.energy.2011.08.041
 Author:
 Ahmadi, Pouria; Dincer, Ibrahim; Rosen, Marc A.
 Source:
 Energy 2011 v.36 no.10 pp. 58865898
 ISSN:
 03605442
 Subject:
 algorithms, etc ; carbon dioxide; combustion; environmental factors; environmental impact; exergy; fuels; greenhouse gas emissions; power plants; temperature; Show all 10 Subjects
 Abstract:
 ... A comprehensive exergy, exergoeconomic and environmental impact analysis and optimization is reported of several combined cycle power plants (CCPPs). In the first part, thermodynamic analyses based on energy and exergy of the CCPPs are performed, and the effect of supplementary firing on the natural gasfired CCPP is investigated. The latter step includes the effect of supplementary firing on the ...
 DOI:
 10.1016/j.energy.2011.08.034

http://dx.doi.org/10.1016/j.energy.2011.08.034
 Author:
 Kusiak, Andrew; Xu, Guanglin; Tang, Fan
 Source:
 Energy 2011 v.36 no.10 pp. 59355943
 ISSN:
 03605442
 Subject:
 algorithms, etc ; air conditioning; energy; heat; humidity; neural networks; temperature; Show all 7 Subjects
 Abstract:
 ... A datadriven approach for the optimization of a heating, ventilation, and air conditioning (HVAC) system in an office building is presented. A neural network (NN) algorithm is used to build a predictive model since it outperformed five other algorithms investigated in this paper. The NNderived predictive model is then optimized with a strength multiobjective particleswarm optimization (SMOPSO ...
 DOI:
 10.1016/j.energy.2011.08.024

http://dx.doi.org/10.1016/j.energy.2011.08.024
 Author:
 Niknam, Taher; Narimani, Mohammad rasoul; Jabbari, Masoud; Malekpour, Ahmad Reza
 Source:
 Energy 2011 v.36 no.11 pp. 64206432
 ISSN:
 03605442
 Subject:
 algorithms, etc ; electricity costs; environmental protection; frogs; mutation; planning; profits and margins; Show all 7 Subjects
 Abstract:
 ... This paper presents an efficient and reliable evolutionarybased approach to solve the Optimal Power Flow (OPF) problem by considering the emission issue. The OPF problem has been widely used in power system operation and planning for determining electricity prices. Therefore, the conventional optimal power flow cannot meet the environmental protection requirements, because it only considers gener ...
 DOI:
 10.1016/j.energy.2011.09.027

http://dx.doi.org/10.1016/j.energy.2011.09.027
 Author:
 Moghaddam, Amjad Anvari; Seifi, Alireza; Niknam, Taher; Alizadeh Pahlavani, Mohammad Reza
 Source:
 Energy 2011 v.36 no.11 pp. 64906507
 ISSN:
 03605442
 Subject:
 algorithms, etc ; batteries; electricity; energy efficiency; operating costs; renewable energy sources; socioeconomic development; system optimization; Show all 8 Subjects
 Abstract:
 ... As a result of today’s rapid socioeconomic growth and environmental concerns, higher service reliability, better power quality, increased energy efficiency and energy independency, exploring alternative energy resources, especially the renewable ones, has become the fields of interest for many modern societies. In this regard, MG (MicroGrid) which is comprised of various alternative energy source ...
 DOI:
 10.1016/j.energy.2011.09.017

http://dx.doi.org/10.1016/j.energy.2011.09.017
 Author:
 Pantoš, Miloš
 Source:
 Energy 2011 v.36 no.11 pp. 65676576
 ISSN:
 03605442
 Subject:
 algorithms, etc ; Monte Carlo method; case studies; energy; renewable energy sources; transportation; Show all 6 Subjects
 Abstract:
 ... The paper presents the stochastic optimization algorithm that may eventually be used by electric energy suppliers to coordinate charging of electricdrive vehicles (EDVs) in order to maximize the use of renewable energy in transportation. Due to the stochastic nature of transportation patterns, the Monte Carlo simulation is applied to model uncertainties presented by numerous scenarios. To reduce ...
 DOI:
 10.1016/j.energy.2011.09.006

http://dx.doi.org/10.1016/j.energy.2011.09.006
 Author:
 Badurally Adam, N.R.; Elahee, M.K.; Dauhoo, M.Z.
 Source:
 Energy 2011 v.36 no.12 pp. 67636769
 ISSN:
 03605442
 Subject:
 algorithms, etc ; economic indicators; electricity; gross domestic product; humidity; neural networks; prediction; solar radiation; temperature; Mauritius; Show all 10 Subjects
 Abstract:
 ... In this study, the nonhomogeneous Gompertz diffusion process (NHGDP) is used to model the monthly peak electricity demand in Mauritius in order to predict the future values on the basis of a Genetic Algorithm (GA) approach. Our model is developed based a key economic indicator which is the gross domestic product (GDP) and the weather factors such as temperature, hours of sunshine and humidity. Ge ...
 DOI:
 10.1016/j.energy.2011.10.027

http://dx.doi.org/10.1016/j.energy.2011.10.027
 Author:
 Yu, Shiwei; Zhu, Kejun
 Source:
 Energy 2012 v.37 no.1 pp. 396404
 ISSN:
 03605442
 Subject:
 algorithms, etc ; coal; economic structure; energy; gross domestic product; models; system optimization; urbanization; China; Show all 9 Subjects
 Abstract:
 ... Energy consumption in China is continuously increasing. Accordingly, the present paper aims to develop a hybrid procedure for energy demand forecasting in China with higher precision. The mechanism of the affecting factors of China’s energy demand is investigated via pathcoefficient analysis. The main affecting factors include gross domestic product, population, economic structure, urbanization r ...
 DOI:
 10.1016/j.energy.2011.11.015

http://dx.doi.org/10.1016/j.energy.2011.11.015
 Author:
 Dong, C.; Huang, G.H.; Cai, Y.P.; Liu, Y.
 Source:
 Energy 2012 v.37 no.1 pp. 673688
 ISSN:
 03605442
 Subject:
 algorithms, etc ; air pollution; energy conversion; energy policy; energy resources; models; planning; pollution control; resource allocation; risk; uncertainty; China; Show all 12 Subjects
 Abstract:
 ... In this study, an inexact optimization modeling approach (IBEM: inexact Beijing energy model) was developed for supporting energy systems planning and air pollution mitigation under uncertainty. This model was based on the integration of multiple inexact optimization techniques, including intervalparameter programming, mixedinteger programming and chanceconstrained programming, which make it ha ...
 DOI:
 10.1016/j.energy.2011.10.030

http://dx.doi.org/10.1016/j.energy.2011.10.030
 Author:
 AzizipanahAbarghooee, Rasoul; Niknam, Taher; Roosta, Alireza; Malekpour, Ahmad Reza; Zare, Mohsen
 Source:
 Energy 2012 v.37 no.1 pp. 322335
 ISSN:
 03605442
 Subject:
 algorithms, etc ; case studies; emissions; energy costs; fossil fuels; generators (equipment); models; power plants; uncertainty; wind; wind power; Show all 11 Subjects
 Abstract:
 ... In this paper, wind power generators are being incorporated in the multiobjective economic emission dispatch problem which minimizes windthermal electrical energy cost and emissions produced by fossilfueled power plants, simultaneously. Large integration of wind energy sources necessitates an efficient model to cope with uncertainty arising from random wind variation. Hence, a multiobjective sto ...
 DOI:
 10.1016/j.energy.2011.11.023

http://dx.doi.org/10.1016/j.energy.2011.11.023
 Author:
 Cai, Jiejin; Li, Qiong; Li, Lixiang; Peng, Haipeng; Yang, Yixian
 Source:
 Energy 2012 v.38 no.1 pp. 346353
 ISSN:
 03605442
 Subject:
 algorithms, etc ; methodology; swarms; Show all 3 Subjects
 Abstract:
 ... In this paper, a hybrid method integrating the fuzzy adaptive chaotic ant swarm optimization (FCASO) algorithm and the sequential quadratic programming (SQP) techniques, named FCASOSQP method, is presented for solving the economic dispatch (ED) problems in power systems. The FCASO algorithm is the main optimizer in the hybrid method and the SQP technique is used to fine tune its results to improv ...
 DOI:
 10.1016/j.energy.2011.11.052

http://dx.doi.org/10.1016/j.energy.2011.11.052
 Author:
 Siddhartha,; Sharma, Naveen; Varun,
 Source:
 Energy 2012 v.38 no.1 pp. 406413
 ISSN:
 03605442
 Subject:
 algorithms, etc ; air; climatic factors; latitude; longitude; prediction; India; Show all 7 Subjects
 Abstract:
 ... This work is undertaken with an objective to develop and implement a trained particle swarm optimization (PSO) algorithm for prediction of an optimized set of design and operating parameters for a smooth flat plate solar air heater (SFPSAH). The simulation is carried out based on the basis of the algorithm developed for three different cases using the climatic condition data of the city Hamirpur, ...
 DOI:
 10.1016/j.energy.2011.11.026

http://dx.doi.org/10.1016/j.energy.2011.11.026
 Author:
 Sayyaadi, Hoseyn; Mehrabipour, Reza
 Source:
 Energy 2012 v.38 no.1 pp. 362375
 ISSN:
 03605442
 Subject:
 algorithms, etc ; air; air temperature; decision making; economic investment; engineering; heat exchangers; models; power plants; system optimization; Show all 10 Subjects
 Abstract:
 ... A simple gas turbine cycle namely as the Kraftwerk Union AG unit including a Siemens gas turbine model V93.1 with 60 MW nominal power and 26.0% thermal efficiency utilized in the Fars power plant located is considered for the efficiency enhancement. A typical tubular vertical recuperative heat exchanger is designed in order to integrate into the cycle as an air preheater for thermal efficiency im ...
 DOI:
 10.1016/j.energy.2011.11.048

http://dx.doi.org/10.1016/j.energy.2011.11.048
 Author:
 Sanaei, Sayyed Mohammad; Nakata, Toshihiko
 Source:
 Energy 2012 v.38 no.1 pp. 190204
 ISSN:
 03605442
 Subject:
 algorithms, etc ; arid zones; carbon dioxide; decision making; energy costs; engineering; exergy; heat; heating systems; Iran; Show all 10 Subjects
 Abstract:
 ... The purpose of this paper is to present a new tool for design of integrated energy systems. The initial choice of the energy system components and the way they should interact is a crucial decision which the outcome of the design heavily relies on. Use of a physical law (instead of engineering judgment) as the basis of the decision making is the main advantage of the proposed approach over convent ...
 DOI:
 10.1016/j.energy.2011.12.016

http://dx.doi.org/10.1016/j.energy.2011.12.016
 Author:
 Bunin, Gene A.; Wuillemin, Zacharie; François, Grégory; Nakajo, Arata; Tsikonis, Leonidas; Bonvin, Dominique
 Source:
 Energy 2012 v.39 no.1 pp. 5462
 ISSN:
 03605442
 Subject:
 algorithms, etc ; fuel cells; methodology; models; Show all 4 Subjects
 Abstract:
 ... The experimental validation of a realtime optimization (RTO) strategy for the optimal operation of a solid oxide fuel cell (SOFC) stack is reported in this paper. Unlike many existing studies, the RTO approach presented here utilizes the constraintadaptation methodology, which assumes that the optimal operating point lies on a set of active constraints and then seeks to satisfy those constraints ...
 DOI:
 10.1016/j.energy.2011.04.033

http://dx.doi.org/10.1016/j.energy.2011.04.033
 Author:
 He, Hongwen; Zhang, Xiaowei; Xiong, Rui; Xu, Yongli; Guo, Hongqiang
 Source:
 Energy 2012 v.39 no.1 pp. 310318
 ISSN:
 03605442
 Subject:
 algorithms, etc ; batteries; electric power; equations; least squares; models; vehicles (equipment); Show all 7 Subjects
 Abstract:
 ... This paper presents a method to estimate the stateofcharge (SOC) of a lithiumion battery, based on an online identification of its opencircuit voltage (OCV), according to the battery’s intrinsic relationship between the SOC and the OCV for application in electric vehicles. Firstly an equivalent circuit model with n RC networks is employed modeling the polarization characteristic and the dynami ...
 DOI:
 10.1016/j.energy.2012.01.009

http://dx.doi.org/10.1016/j.energy.2012.01.009
 Author:
 Perera, A.T.D.; Wickremasinghe, D.M.I.J.; Mahindarathna, D.V.S.; Attalage, R.A.; Perera, K.K.C.K.; Bartholameuz, E.M.
 Source:
 Energy 2012 v.39 no.1 pp. 403411
 ISSN:
 03605442
 Subject:
 algorithms, etc ; combustion; energy; energy costs; fossil fuels; greenhouse gas emissions; greenhouse gases; models; renewable energy sources; Show all 9 Subjects
 Abstract:
 ... With higher depletion rates of fossil fuels and the ever growing environmental concerns on Green House Gas (GHG) emissions it has become important to investigate the impact of Internal Combustion Generator (ICG) capacity in Hybrid Energy System (HES)s for standalone applications. In order to accomplish this objective HES modeling, simulation, and optimization was done for three different system co ...
 DOI:
 10.1016/j.energy.2011.12.039

http://dx.doi.org/10.1016/j.energy.2011.12.039
 Author:
 Hami, K.; Draoui, B.; Hami, O.
 Source:
 Energy 2012 v.39 no.1 pp. 1116
 ISSN:
 03605442
 Subject:
 algorithms, etc ; air flow; energy; equations; models; momentum; solar chimneys; temperature; Show all 8 Subjects
 Abstract:
 ... In this paper, the computational fluid dynamics technique (CFD) was used for air flow simulation in the solar chimney. The flow is assumed laminar, unsteady and incompressible. The air flow model consisted of a system of governing equations continuity, momentum, energy are solved for 2D Cartesian system uses the SIMPLE algorithm and the Power–Law differencing scheme. The influence of the variation ...
 DOI:
 10.1016/j.energy.2011.10.017

http://dx.doi.org/10.1016/j.energy.2011.10.017
 Author:
 Wang, Z.Q.; Zhou, N.J.; Guo, J.; Wang, X.Y.
 Source:
 Energy 2012 v.40 no.1 pp. 107115
 ISSN:
 03605442
 Subject:
 algorithms, etc ; boiling; condensation; cooling; evaporation; heat; heat exchangers; models; screening; temperature; Show all 10 Subjects
 Abstract:
 ... The paper presented a working fluid selection and parametric optimization using a multiobjective optimization model by simulated annealing algorithm. The screening criteria considered included heat exchanger area per unit power output (A/Wₙₑₜ) and heat recovery efficiency (Ф). The independent parameters are the evaporation and condensation pressures, working fluid and cooling water velocities in ...
 DOI:
 10.1016/j.energy.2012.02.022

http://dx.doi.org/10.1016/j.energy.2012.02.022
 Author:
 Sanaye, Sepehr; Mohammadi Nasab, Amir
 Source:
 Energy 2012 v.40 no.1 pp. 358369
 ISSN:
 03605442
 Subject:
 algorithms, etc ; case studies; cities; electricity; exergy; gas engines; heat; income; models; natural gas; pipelines; wastes; Show all 12 Subjects
 Abstract:
 ... The pressure in the main natural gas transport pipelines should be reduced for proper consumption in vicinity of cities. A common procedure of reducing pressure in natural gas station (city gate station, CGS) is using expansion valves, which causes the waste of large amount of exergy (availability). In this paper a combined heat and power (CHP) system was used instead which included an expander, g ...
 DOI:
 10.1016/j.energy.2012.01.060

http://dx.doi.org/10.1016/j.energy.2012.01.060
 Author:
 Kasiri, H.; Abadeh, M. Saniee; Momeni, H.R.
 Source:
 Energy 2012 v.40 no.1 pp. 438444
 ISSN:
 03605442
 Subject:
 algorithms, etc ; energy conversion; mechanical drives; neural networks; torque; wind power; wind speed; wind turbines; Show all 8 Subjects
 Abstract:
 ... Megawatt class wind turbines generally turn at variable speed in wind farm. Thus turbine operation must be controlled in order to maximize the conversion efficiency below rated power and reduce loading on the drive train. In addition, researchers particularly employ pitch control of the blades to manage the energy captured throughout operation above and below rated wind speed. In this study, fuzzy ...
 DOI:
 10.1016/j.energy.2012.01.022

http://dx.doi.org/10.1016/j.energy.2012.01.022
 Author:
 Lazzaretto, Andrea; Morandin, Matteo; Toffolo, Andrea
 Source:
 Energy 2012 v.41 no.1 pp. 165174
 ISSN:
 03605442
 Subject:
 algorithms, etc ; case studies; cold; energy; engineering; ethanol; ethanol production; heat; heat exchangers; streams; sugarcane; sugars; temperature; Show all 13 Subjects
 Abstract:
 ... The synthesis problem, i.e. the definition of type, number and design parameters of system components and their interconnections, is one of the main research field of chemical and energy engineering. The present paper aims at clarifying some methodological aspects for the systematic synthesis of processes by suggesting an organized procedure which is applied here to a case study of a sugarcane mil ...
 DOI:
 10.1016/j.energy.2011.12.035

http://dx.doi.org/10.1016/j.energy.2011.12.035
 Author:
 Toffolo, Andrea; Lazzaretto, Andrea; von Spakovsky, Michael R.
 Source:
 Energy 2012 v.41 no.1 pp. 236243
 ISSN:
 03605442
 Subject:
 algorithms, etc ; cold; energy; heat transfer; streams; system optimization; temperature; Show all 7 Subjects
 Abstract:
 ... In this paper, the formulation of the constraint on heat transfer feasibility in the synthesis/design optimization of complex energy systems is discussed, with particular emphasis on the case in which the matching among the hot and cold thermal streams within the system is not defined a priori. The mathematical nature of the set of inequality constraints expressing the internal availability of the ...
 DOI:
 10.1016/j.energy.2011.06.026

http://dx.doi.org/10.1016/j.energy.2011.06.026
 Author:
 Bornatico, Raffaele; Pfeiffer, Michael; Witzig, Andreas; Guzzella, Lino
 Source:
 Energy 2012 v.41 no.1 pp. 3137
 ISSN:
 03605442
 Subject:
 algorithms, etc ; buildings; energy; solar energy; Show all 4 Subjects
 Abstract:
 ... In recent years the domestic energy management has become a nontrivial task as the number of energy sources and system components involved have increased, and all components have to operate coordinately in order to maximize global efficiency measures. In this paper a methodology is presented for finding the optimal size of the main components for a solar thermal system where particular attention ...
 DOI:
 10.1016/j.energy.2011.05.026

http://dx.doi.org/10.1016/j.energy.2011.05.026
 Author:
 Spelling, James; Favrat, Daniel; Martin, Andrew; Augsburger, Germain
 Source:
 Energy 2012 v.41 no.1 pp. 113120
 ISSN:
 03605442
 Subject:
 algorithms, etc ; dynamic models; economic performance; electricity costs; power plants; thermodynamics; Show all 6 Subjects
 Abstract:
 ... A dynamic model of a puresolar combinedcycle power plant has been developed in order to allow determination of the thermodynamic and economic performance of the plant for a variety of operating conditions and superstructure layouts. The model was then used for multiobjective thermoeconomic optimization of both the power plant performance and cost, using a populationbased evolutionary algorithm ...
 DOI:
 10.1016/j.energy.2011.03.073

http://dx.doi.org/10.1016/j.energy.2011.03.073
 Author:
 Harkin, Trent; Hoadley, Andrew; Hooper, Barry
 Source:
 Energy 2012 v.41 no.1 pp. 228235
 ISSN:
 03605442
 Subject:
 algorithms, etc ; carbon; carbon dioxide; electricity costs; energy; heat; potassium carbonate; solvents; steam; Show all 9 Subjects
 Abstract:
 ... An Aspen Plus® simulation of an existing power station with a potassium carbonate based carbon capture (CCS) plant including CO₂ compression is combined with an Excel based genetic algorithm to optimise the net power output of the power station and amount of CO₂ captured for a range of solvent flowrates, lean loading and stripper pressures. The net power output was compared for a CCS plant that is ...
 DOI:
 10.1016/j.energy.2011.06.031

http://dx.doi.org/10.1016/j.energy.2011.06.031
 Author:
 Niknam, Taher; AzizipanahAbarghooee, Rasoul; Roosta, Alireza; Amiri, Babak
 Source:
 Energy 2012 v.42 no.1 pp. 530545
 ISSN:
 03605442
 Subject:
 algorithms, etc ; Lampyridae; cost effectiveness; emissions; heat; mutation; spinning; Show all 7 Subjects
 Abstract:
 ... Combined heat and power units are playing an ever increasing role in conventional power stations due to advantages such as reduced emissions and operational cost savings. This paper investigates a more practical formulation of the complex nonconvex, nonsmooth and nonlinear multiobjective dynamic economic emission dispatch that incorporates combined heat and power units. Integrating these types ...
 DOI:
 10.1016/j.energy.2012.02.041

http://dx.doi.org/10.1016/j.energy.2012.02.041
 Author:
 Soares, J.; Silva, M.; Sousa, T.; Vale, Z.; Morais, H.
 Source:
 Energy 2012 v.42 no.1 pp. 466476
 ISSN:
 03605442
 Subject:
 algorithms, etc ; case studies; energy; energy resources; wind; Show all 5 Subjects
 Abstract:
 ... Distributed Energy Resources (DER) scheduling in smart grids presents a new challenge to system operators. The increase of new resources, such as storage systems and demand response programs, results in additional computational efforts for optimization problems. On the other hand, since natural resources, such as wind and sun, can only be precisely forecasted with small anticipation, shortterm sc ...
 DOI:
 10.1016/j.energy.2012.03.022

http://dx.doi.org/10.1016/j.energy.2012.03.022
 Author:
 Kusiak, Andrew; Xu, Guanglin
 Source:
 Energy 2012 v.42 no.1 pp. 241250
 ISSN:
 03605442
 Subject:
 algorithms, etc ; air conditioning; ambient temperature; energy; heat; neural networks; Show all 6 Subjects
 Abstract:
 ... The energy consumption of a heating, ventilating and air conditioning (HVAC) system is optimized by using a datadriven approach. Predictive models with controllable and uncontrollable input and output variables utilize the concept of a dynamic neural network. The minimization of the energy consumed while maintaining indoor room temperature at an acceptable level is accomplished with a biobjectiv ...
 DOI:
 10.1016/j.energy.2012.03.063

http://dx.doi.org/10.1016/j.energy.2012.03.063
 Author:
 Niknam, Taher; Kavousi Fard, Abdollah; Baziar, Aliasghar
 Source:
 Energy 2012 v.42 no.1 pp. 563573
 ISSN:
 03605442
 Subject:
 algorithms, etc ; case studies; econometric models; electricity; energy; energy costs; fuel cells; fuel production; hydrogen; hydrogen production; natural gas; power plants; prices; purchasing; tariffs; Show all 15 Subjects
 Abstract:
 ... This paper assesses the operation and management of electrical energy, hydrogen production and thermal load supplement by the Fuel Cell Power Plants (FCPP) in the distribution systems with regard to the uncertainties which exist in the load demand as well as the price of buying natural gas for FCPPs, fuel cost for residential loads, tariff for purchasing electricity, tariff for selling electricity ...
 DOI:
 10.1016/j.energy.2012.02.023

http://dx.doi.org/10.1016/j.energy.2012.02.023
 Author:
 Chicco, Gianfranco
 Source:
 Energy 2012 v.42 no.1 pp. 6880
 ISSN:
 03605442
 Subject:
 algorithms, etc ; business enterprises; consumers (people); electricity; Show all 4 Subjects
 Abstract:
 ... In the current structure of the electricity business, distribution and supply services have been unbundled in many jurisdictions. As a consequence of unbundling, electricity supply to customers is now provided on a competitive basis. In this context, the electricity suppliers need to get accurate information on the actual behaviour of their customers for setting up dedicated commercial offers. Cus ...
 DOI:
 10.1016/j.energy.2011.12.031

http://dx.doi.org/10.1016/j.energy.2011.12.031
 Author:
 Ratkiewicz, Artur; Truong, Thanh N.
 Source:
 Energy 2012 v.43 no.1 pp. 6472
 ISSN:
 03605442
 Subject:
 algorithms, etc ; combustion; computer software; models; Show all 4 Subjects
 Abstract:
 ... A clear and relatively simple algorithm for generating a unique (canonical) form of the reaction mechanism is presented based on symbolic algebra and SMILES (Simplified Molecular Input Line Entry System)/USMILES (Unique SMILES)language. This algorithm allows comparing and/or merging of different mechanisms and is useful for modeling complex reactions such as combustion. A computer program for gene ...
 DOI:
 10.1016/j.energy.2012.02.029

http://dx.doi.org/10.1016/j.energy.2012.02.029
 Author:
 Blurock, Edward S.; Warth, Valérie; Grandmougin, Xavier; Bounaceur, Roda; Glaude, PierreAlexandre; BattinLeclerc, Frédérique
 Source:
 Energy 2012 v.43 no.1 pp. 161171
 ISSN:
 03605442
 Subject:
 algorithms, etc ; chemical speciation; combustion; computer software; databases; extensibility; free radicals; hydrogen; thermodynamics; Show all 9 Subjects
 Abstract:
 ... JTHERGAS is a versatile calculator (implemented in JAVA) to estimate thermodynamic information from twodimensional graphical representations of molecules and radicals involving covalent bonds based on the Benson additivity method. The versatility of JTHERGAS stems from its inherent philosophy that all the fundamental data used in the calculation should be visible, to see exactly where the final v ...
 DOI:
 10.1016/j.energy.2012.01.072
 PubMed:
 23761949
 PubMed Central:
 PMC3677398

http://dx.doi.org/10.1016/j.energy.2012.01.072
 Author:
 Niknam, Taher; Golestaneh, Faranak; Malekpour, Ahmadreza
 Source:
 Energy 2012 v.43 no.1 pp. 427437
 ISSN:
 03605442
 Subject:
 algorithms, etc ; electric power; electricity; energy; energy costs; fossil fuels; fuel cells; market prices; mutation; solar collectors; wind; wind power; Show all 12 Subjects
 Abstract:
 ... Recently, due to technology improvements, governmental incentives for the use of green energies and rising concerns about high cost of energy from fossil fuels, renewable energy sources (RESs) appears to be a promising approach for producing local, clean, and inexhaustible energy. This motivates the implementation of microgrids (MGs) introduced as a cluster of electrical and/or thermal loads and d ...
 DOI:
 10.1016/j.energy.2012.03.064

http://dx.doi.org/10.1016/j.energy.2012.03.064
 Author:
 Balbay, Asim; Kaya, Yilmaz; Sahin, Omer
 Source:
 Energy 2012 v.44 no.1 pp. 352357
 ISSN:
 03605442
 Subject:
 algorithms, etc ; Nigella sativa; data collection; drying; microwave treatment; neural networks; neurons; prediction; seeds; temperature; water content; Show all 11 Subjects
 Abstract:
 ... Drying characteristics of Black cumin seeds (BCs) (Nigella sativa) with initial moisture content 58.14% (d.b) was investigated in microwave assisted drying system. The experiments were carried out in two aspects which were the BCs drying with different temperatures (35, 40 and 50 °C) and different microwave power levels (250, 500 and 750 W). The results showed that the drying rates of BCs have hig ...
 DOI:
 10.1016/j.energy.2012.06.022

http://dx.doi.org/10.1016/j.energy.2012.06.022
 Author:
 Mohammadiivatloo, Behnam; Rabiee, Abbas; Soroudi, Alireza; Ehsan, Mehdi
 Source:
 Energy 2012 v.44 no.1 pp. 228240
 ISSN:
 03605442
 Subject:
 algorithms, etc ; energy; equations; supply; Show all 4 Subjects
 Abstract:
 ... Dynamic economic dispatch (DED) aims to schedule the committed generating units' output active power economically over a certain period of time, satisfying operating constraints and load demand in each interval. Valvepoint effect, the ramp rate limits, prohibited operation zones (POZs), and transmission losses make the DED a complicated, nonlinear constrained problem. Hence, in this paper, imper ...
 DOI:
 10.1016/j.energy.2012.06.034

http://dx.doi.org/10.1016/j.energy.2012.06.034
 Author:
 Sarıca, Kemal; Kumbaroğlu, Gürkan; Or, Ilhan
 Source:
 Energy 2012 v.44 no.1 pp. 830852
 ISSN:
 03605442
 Subject:
 algorithms, etc ; electricity; electricity costs; generators (equipment); market power; markets; profits and margins; simulation models; Show all 8 Subjects
 Abstract:
 ... In this study, a model is developed to investigate the implications of an hourly dayahead competitive power market on generator profits, electricity prices, availability and supply security. An integrated simulation/optimization approach is employed integrating a multiagent simulation model with two alternative optimization models. The simulation model represents interactions between power gener ...
 DOI:
 10.1016/j.energy.2012.05.009

http://dx.doi.org/10.1016/j.energy.2012.05.009
 Author:
 Wang, Yongqiang; Zhou, Jianzhong; Mo, Li; Zhang, Rui; Zhang, Yongchuan
 Source:
 Energy 2012 v.44 no.1 pp. 657671
 ISSN:
 03605442
 Subject:
 algorithms, etc ; energy costs; mutation; system optimization; Show all 4 Subjects
 Abstract:
 ... Shortterm hydrothermal generation scheduling aims at determining optimal hydro and thermal generations to achieve minimum fuel cost of thermal plants for a 1 day or a 1 week while meeting various hydraulic and electric system constraints. The problem is viewed as a complex and nonlinear hard problem considering valvepoints effects and transmission losses with a set of operation operational and p ...
 DOI:
 10.1016/j.energy.2012.05.026

http://dx.doi.org/10.1016/j.energy.2012.05.026
 Author:
 Perpar, Matjaz; Rek, Zlatko; Bajric, Suvad; Zun, Iztok
 Source:
 Energy 2012 v.44 no.1 pp. 197210
 ISSN:
 03605442
 Subject:
 algorithms, etc ; ambient temperature; environmental impact; heat transfer; insulating materials; mathematical models; pipelines; pipes; prediction; soil density; soil sampling; soil temperature; specific heat; thermal conductivity; thermal diffusivity; Show all 15 Subjects
 Abstract:
 ... The research refers to the district heating (DH) system in Ljubljana, which includes 245km of highly diversified pipelines. The purpose of this study was to determine the effect of the soil thermal conductivity coefficient (λₛ) on the heat loss from preinsulated pipes during operation. Pipeline geometry, material properties (particularly insulation and soil thermal conductivity) and timedependen ...
 DOI:
 10.1016/j.energy.2012.06.037

http://dx.doi.org/10.1016/j.energy.2012.06.037
 Author:
 Ferreira, Ana C.M.; Nunes, Manuel L.; Teixeira, Senhorinha F.C.F.; Leão, Celina P.; Silva, Ângela M.; Teixeira, José C.F.; Martins, Luís A.S.B.
 Source:
 Energy 2012 v.45 no.1 pp. 436444
 ISSN:
 03605442
 Subject:
 algorithms, etc ; equations; heat; markets; mathematical models; natural gas; prices; system optimization; temperature; work schedules; Portugal; Show all 11 Subjects
 Abstract:
 ... A numerical optimisation method, previously applied to a large industrial cogeneration plant, has been adapted for a smallscale unit that must be driven by the heat demand of a mediumsize building located in the north of Portugal. The unit is based on a microgas turbine and includes an internal preheater (typical of these types of smallscale units) and a water heater. The mathematical model y ...
 DOI:
 10.1016/j.energy.2012.05.054

http://dx.doi.org/10.1016/j.energy.2012.05.054
 Author:
 Zhang, Wen Yu; Hong, WeiChiang; Dong, Yucheng; Tsai, Gary; Sung, JingTian; Fan, Guofeng
 Source:
 Energy 2012 v.45 no.1 pp. 850858
 ISSN:
 03605442
 Subject:
 algorithms, etc ; business enterprises; climate; hybridization; models; Show all 5 Subjects
 Abstract:
 ... The electric load forecasting is complicated, and it sometimes reveals cyclic changes due to cyclic economic activities or climate seasonal nature, such as hourly peak in a working day, weekly peak in a business week, and monthly peak in a demand planned year. Hybridization of support vector regression (SVR) with chaotic sequence and evolutionary algorithms has successfully been applied to improve ...
 DOI:
 10.1016/j.energy.2012.07.006

http://dx.doi.org/10.1016/j.energy.2012.07.006
 Author:
 Fazlollahi, Samira; Mandel, Pierre; Becker, Gwenaelle; Maréchal, Francois
 Source:
 Energy 2012 v.45 no.1 pp. 1222
 ISSN:
 03605442
 Subject:
 algorithms, etc ; case studies; energy; fuel cells; gas engines; heat pumps; linear programming; markets; models; solar energy; uncertainty; Show all 11 Subjects
 Abstract:
 ... The design and operations of energy systems are key issues for matching energy supply and consumption. Several optimization methods based on the mixed integer linear programming (MILP) have been developed for this purpose. However, due to uncertainty of some parameters like market conditions and resource availability, analyzing only one optimal solution with mono objective function is not sufficie ...
 DOI:
 10.1016/j.energy.2012.02.046

http://dx.doi.org/10.1016/j.energy.2012.02.046
 Author:
 Ziębik, Andrzej; Gładysz, Paweł
 Source:
 Energy 2012 v.45 no.1 pp. 220227
 ISSN:
 03605442
 Subject:
 algorithms, etc ; equations; heat transfer; heating systems; steam; tap water; temperature; Show all 7 Subjects
 Abstract:
 ... In cogeneration units cooperating with District Heating Systems the power rating of the backpressure turbine should not be chosen to cover the maximum demand for heat. This results from the character of the duration curve of external temperature conditioning the heat demand for space heating and ventilation. The power rating of the backpressure turbine ought to be chosen according to the optimal ...
 DOI:
 10.1016/j.energy.2012.02.071

http://dx.doi.org/10.1016/j.energy.2012.02.071
 Author:
 Khorramdel, Benyamin; Raoofat, Mahdi
 Source:
 Energy 2012 v.45 no.1 pp. 9941006
 ISSN:
 03605442
 Subject:
 algorithms, etc ; Monte Carlo method; system optimization; uncertainty; wind speed; wind turbines; Show all 6 Subjects
 Abstract:
 ... Distributed Generators (DGs) in a microgrid may operate in three different reactive power control strategies, including PV, PQ and voltage droop schemes. This paper proposes a new stochastic programming approach for reactive power scheduling of a microgrid, considering the uncertainty of wind farms. The proposed algorithm firstly finds the expected optimal operating point of each DG in VQ plane w ...
 DOI:
 10.1016/j.energy.2012.05.055

http://dx.doi.org/10.1016/j.energy.2012.05.055
 Author:
 Voll, Philip; Lampe, Matthias; Wrobel, Gregor; Bardow, André
 Source:
 Energy 2012 v.45 no.1 pp. 424435
 ISSN:
 03605442
 Subject:
 algorithms, etc ; cooling systems; energy conversion; heat; mutation; system optimization; Show all 6 Subjects
 Abstract:
 ... A novel approach is proposed for the superstructurefree synthesis and optimization of distributed energy supply systems (DESS) by exploiting the nature of evolutionary algorithms. Current approaches require the designer to define a superstructure, which subsequently is optimized. In the presented method, the a priori specification of a superstructure is avoided: A mutation operator employs generi ...
 DOI:
 10.1016/j.energy.2012.01.041

http://dx.doi.org/10.1016/j.energy.2012.01.041
 Author:
 Sieniutycz, Stanisław; Poświata, Artur
 Source:
 Energy 2012 v.45 no.1 pp. 6270
 ISSN:
 03605442
 Subject:
 algorithms, etc ; dynamic programming; electrochemistry; energy conversion; fuel cells; power generation; temperature; Show all 7 Subjects
 Abstract:
 ... We apply optimization methods to study power generation limits for various energy converters, such as thermal, solar, chemical, and electrochemical engines. Methodological similarity is observed when analysing power limits in thermal machines and fuel cells which are electrochemical flow engines. Operative driving forces and voltage are suitable indicators of imperfect phenomena in energy converte ...
 DOI:
 10.1016/j.energy.2011.12.040

http://dx.doi.org/10.1016/j.energy.2011.12.040
 Author:
 Wang, Wei; Liu, Jizhen; Zeng, Deliang; Lin, Zhongwei; Cui, Can
 Source:
 Energy 2012 v.45 no.1 pp. 588594
 ISSN:
 03605442
 Subject:
 algorithms, etc ; case studies; cooling; energy conservation; energy requirements; power plants; pumps; Show all 7 Subjects
 Abstract:
 ... The objective of this research is to simultaneously reduce energy requirements along with rapid and broad load ranges using variablespeed pumps (VSPs) in thermal power plants. This paper proposes a novel algorithm to calculate the operating points of VSP. A case study on the operation optimization of condenser cooling water pump shows that VSP is far superior to fixedspeed pump in terms of energ ...
 DOI:
 10.1016/j.energy.2012.07.040

http://dx.doi.org/10.1016/j.energy.2012.07.040
 Author:
 Özyön, Serdar; Temurtaş, Hasan; Durmuş, Burhanettin; Kuvat, Gültekin
 Source:
 Energy 2012 v.46 no.1 pp. 420430
 ISSN:
 03605442
 Subject:
 algorithms, etc ; economic impact; system optimization; Show all 3 Subjects
 Abstract:
 ... Today it is very important to consider environmental effects in economic power dispatch problems as well. These kinds of problems, which are called environmental economic power dispatch problems, are multiobjective optimization problems. In the present study, in order to find the paretooptimal results, the problem has been transformed into singleobjective optimization problem by using weighted ...
 DOI:
 10.1016/j.energy.2012.08.008

http://dx.doi.org/10.1016/j.energy.2012.08.008
 Author:
 He, Kaijian; Yu, Lean; Lai, Kin Keung
 Source:
 Energy 2012 v.46 no.1 pp. 564574
 ISSN:
 03605442
 Subject:
 algorithms, etc ; market analysis; market microstructure; markets; models; petroleum; prices; wavelet; Show all 8 Subjects
 Abstract:
 ... To improve the forecasting accuracy of crude oil price with deeper understanding of the market microstructure, this paper proposes a wavelet decomposed ensemble model. The proposed model follows the Heterogeneous Market Hypothesis that assumes the unstationarity and dynamic changing nature of the underlying market structure and introduces the wavelet analysis to analyze the dynamic underlying Data ...
 DOI:
 10.1016/j.energy.2012.07.055

http://dx.doi.org/10.1016/j.energy.2012.07.055
 Author:
 Srinivasa Reddy, A.; Vaisakh, K.; Vaccaro, A.
 Source:
 Energy 2012 v.46 no.1 pp. 699700
 ISSN:
 03605442
 Subject:
 algorithms, etc ; energy; energy costs; Show all 3 Subjects
 Abstract:
 ... This paper presents a discussion of “A new honey bee mating optimization algorithm for nonsmooth economic dispatch” Taher Niknam et al. Energy 34 (2009) 757–766. The discussed paper presented economic dispatch problem by experimenting three standard test systems considering 10, 15, and 40units. However, in the reported results of test system 1, the total fuel cost calculations are different for ...
 DOI:
 10.1016/j.energy.2012.07.046

http://dx.doi.org/10.1016/j.energy.2012.07.046
 Author:
 Elaiw, A.M.; Shehata, A.M.
 Source:
 Energy 2012 v.46 no.1 pp. 694696
 ISSN:
 03605442
 Subject:
 algorithms, etc ; economic behavior; energy; Show all 3 Subjects
 Abstract:
 ... In the above paper a hybrid seeker optimization algorithm and sequential quadratic programming (SOASQP) is proposed for solving the dynamic economic dispatch (DED) problem. The DED problem is formulated with the objective to minimize the total cost function over a dispatch period and satisfying the ramp rate constraints and other constraints. According to the optimal results for the two test syst ...
 DOI:
 10.1016/j.energy.2012.07.054

http://dx.doi.org/10.1016/j.energy.2012.07.054
 Author:
 Myat, Aung; Thu, Kyaw; Kim, Young Deuk; Saha, Bidyut Baran; Choon Ng, Kim
 Source:
 Energy 2012 v.46 no.1 pp. 493521
 ISSN:
 03605442
 Subject:
 algorithms, etc ; air; cooling; electricity; entropy; heat transfer; refrigeration; steam; temperature; Show all 9 Subjects
 Abstract:
 ... We present a practical tool that employs entropy generation minimization (EGM) approach for an indepth performance evaluation of a cogeneration plant with a temperaturecascaded concept. Cogeneration plant produces useful effect production sequentially, i.e., (i) electricity from the microturbines, (ii) low pressure steam at 250 °C or about 8–10 bars, (iii) cooling capacity of 4 refrigeration ...
 DOI:
 10.1016/j.energy.2012.07.062

http://dx.doi.org/10.1016/j.energy.2012.07.062
 Author:
 Ahmadi, Pouria; Rosen, Marc A.; Dincer, Ibrahim
 Source:
 Energy 2012 v.46 no.1 pp. 2131
 ISSN:
 03605442
 Subject:
 algorithms, etc ; absorption; carbon dioxide; cooling; electricity; environmental impact; equations; exergy; fuels; greenhouse gas emissions; heat; models; purchasing; system optimization; Show all 14 Subjects
 Abstract:
 ... A comprehensive thermodynamic modeling and optimization is reported of a polygeneration energy system for the simultaneous production of heating, cooling, electricity and hot water from a common energy source. This polygeneration system is composed of four major parts: gas turbine (GT) cycle, Rankine cycle, absorption cooling cycle and domestic hot water heater. A multiobjective optimization meth ...
 DOI:
 10.1016/j.energy.2012.02.005

http://dx.doi.org/10.1016/j.energy.2012.02.005
 Author:
 Zhang, Zijun; Zeng, Yaohui; Kusiak, Andrew
 Source:
 Energy 2012 v.47 no.1 pp. 505514
 ISSN:
 03605442
 Subject:
 algorithms, etc ; energy; energy conservation; neural networks; wastewater; Show all 5 Subjects
 Abstract:
 ... This paper discusses energy savings in wastewater processing plant pump operations and proposes a pump system scheduling model to generate operational schedules to reduce energy consumption. A neural network algorithm is utilized to model pump energy consumption and fluid flow rate after pumping. The scheduling model is a mixedinteger nonlinear programming problem (MINLP). As solving a datadrive ...
 DOI:
 10.1016/j.energy.2012.08.048

http://dx.doi.org/10.1016/j.energy.2012.08.048
 Author:
 Narang, Nitin; Dhillon, J.S.; Kothari, D.P.
 Source:
 Energy 2012 v.47 no.1 pp. 237252
 ISSN:
 03605442
 Subject:
 algorithms, etc ; fuzzy logic; system optimization; Show all 3 Subjects
 Abstract:
 ... An integrated methodology that embeds global and local search technique is explored for solving multiobjective hydrothermal scheduling. Predatorprey optimization (PPO) is used as a base level search in the global search space and Powell's method as a local search technique. Predatorprey model is based on particle swarm optimization (PSO). In spite of several advantages of PSO as compared to othe ...
 DOI:
 10.1016/j.energy.2012.09.004

http://dx.doi.org/10.1016/j.energy.2012.09.004
 Author:
 Niknam, Taher; AzizipanahAbarghooee, Rasoul; Narimani, Mohammad Rasoul
 Source:
 Energy 2012 v.47 no.1 pp. 451464
 ISSN:
 03605442
 Subject:
 algorithms, etc ; case studies; energy; mutation; population growth; system optimization; Show all 6 Subjects
 Abstract:
 ... This paper proposes a new method called the enhanced charged system search algorithm in order to solve the reserve constrained dynamic optimal power flow. The optimal power flow (OPF) is applied to develop the corrective strategies and to make the least cost dispatches. The static OPF solutions will usually result in unattractive generation cost in a dynamic environment, so to cope with this probl ...
 DOI:
 10.1016/j.energy.2012.07.053

http://dx.doi.org/10.1016/j.energy.2012.07.053