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You searched for: Journal name Applied energy Remove constraint Journal name: Applied energy Publication year rev 7984-2016 Remove constraint Publication year rev: 7984-2016 Source 2016 v.164 Remove constraint Source: 2016 v.164
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1. Aircraft cost index and the future of carbon emissions from air travel

Author:
Holly A. Edwards; Darron Dixon-Hardy; Zia Wadud
Source:
Applied energy 2016 v.164 pp. 553-562
ISSN:
0306-2619
Subject:
air transportation; aircraft; biofuels; carbon; carbon dioxide; carbon markets; climate change; energy costs; energy use and consumption; equations; flight; greenhouse gas emissions; industry; issues and policy; models; oils
Abstract:
... Air travel accounts for 2% of global CO2 emissions and this proportion is set to grow in the future. There are currently no large scale solutions to drastically reduce the industry’s dependence on oil. Therefore, airlines are looking to use a basket of measures to reduce fuel consumption. Optimisation of the use of cost index (CI) could be a valuable addition to this. By balancing time-dependent c ...
DOI:
10.1016/j.apenergy.2015.11.058

2. Biomass transport cost from field to conversion facility when biomass yield density and road network vary with transport radius

Author:
Rajdeep Golecha; Jianbang Gan
Source:
Applied energy 2016 v.164 pp. 321-331
ISSN:
0306-2619
Subject:
biofuels; biomass production; biorefining; fuel production; models; production costs
Abstract:
... Biomass transport cost from field to a conversion facility is a major component of biofuel production cost. Several studies have provided a general framework, independent of location, for maximising cost competitiveness of bioenergy plants. The majority of these studies assume uniform spatial distribution of biomass and road network, independent of the size of the biorefinery. Although this assump ...
DOI:
10.1016/j.apenergy.2015.11.070

3. CFD analysis of melting process in a shell-and-tube latent heat storage for concentrated solar power plants

Author:
F. Fornarelli; S.M. Camporeale; B. Fortunato; M. Torresi; P. Oresta; L. Magliocchetti; A. Miliozzi; G. Santo
Source:
Applied energy 2016 v.164 pp. 711-722
ISSN:
0306-2619
Subject:
equations; geometry; gravity; heat transfer; melting; power plants; solar energy; steel; temperature profiles
Abstract:
... A latent heat storage system for concentrated solar plants (CSP) is numerically examined by means of CFD simulations. This study aims at identifying the convective flows produced within the melted phase by temperature gradients and gravity. Simulations were carried out on experimental devices for applications to high temperature concentrated solar power plants. A shell-and-tube geometry composed b ...
DOI:
10.1016/j.apenergy.2015.11.106

4. CIGS absorber preparation by non-vacuum particle-based screen printing and RTA densification

Author:
Hsiu-Po Kuo; Hung-An Tsai; An-Ni Huang; Wen-Chueh Pan
Source:
Applied energy 2016 v.164 pp. 1003-1011
ISSN:
0306-2619
Subject:
annealing; carbon; solvents; temperature
Abstract:
... CuIn0.7Ga0.3Se2 (CIGS) thin-films are prepared by the particle-based screen printing technique followed by rapid thermal annealing (RTA) densification. Due to the short RTA time, CIGS absorber remains the ideal stoichiometric ratio originated from the CIGS particles in the coating paste and thus the conventional selenization process is not required. The effects of the particle concentrations of th ...
DOI:
10.1016/j.apenergy.2015.04.002

5. Combining multi-objective evolutionary algorithms and descriptive analytical modelling in energy scenario design

Author:
Md Shahriar Mahbub; Marco Cozzini; Poul Alberg Østergaard; Fabrizio Alberti
Source:
Applied energy 2016 v.164 pp. 140-151
ISSN:
0306-2619
Subject:
algorithms; carbon; energy; energy use and consumption; fossil fuels; mixing; models; renewable energy sources; sustainable technology; Denmark
Abstract:
... Environmental and security concerns urge energy planners to design more sustainable energy systems, reducing fossil fuel consumptions in favour of renewable solutions. The proposed scenarios typically rely on a mixing of different energy sources, thereby mitigating the availability and intermittency problems typically related to renewable technologies. Optimizing this combination is of crucial imp ...
DOI:
10.1016/j.apenergy.2015.11.042

6. Compact open cathode feed system for PEMFCs

Author:
C.Y. Ling; H. Cao; Y. Chen; M. Han; E. Birgersson
Source:
Applied energy 2016 v.164 pp. 670-675
ISSN:
0306-2619
Subject:
air; electrodes; fuel cells; internal temperature; oxygen; stoichiometry
Abstract:
... The open cathode design is commonly adopted for small sized proton exchange membrane fuel cells (PEMFCs) as it allows for smaller footprint and thus, higher power density. Axial fans are typically used to supply oxygen in these PEMFC systems. Apart from controlling stoichiometry, they also play a critical role in regulating internal temperature. This suggests that its location could have significa ...
DOI:
10.1016/j.apenergy.2015.12.012

7. Comprehensive energy analysis of a photovoltaic thermal water electrolyzer

Author:
Muhammed E. Oruc; Amit V. Desai; Paul J.A. Kenis; Ralph G. Nuzzo
Source:
Applied energy 2016 v.164 pp. 294-302
ISSN:
0306-2619
Subject:
ambient temperature; cooling; electrolysis; energy efficiency; finite element analysis; geometry; heat; hydrogen; hydrogen production; reaction kinetics; renewable energy sources; solar collectors; sustainable technology; waste utilization; Arizona
Abstract:
... The use of photovoltaic thermal (PVT) technologies enables improvement in the electrical efficiency of a photovoltaic (PV) module by reducing the temperature of the PV module via active waste heat removal. In current PVT systems, the removed heat is mainly used for specific applications, such as water and/or room heating, but their need is intermittent and seasonal. For a more efficient and versat ...
DOI:
10.1016/j.apenergy.2015.11.078

8. Decomposition analysis of Philippine CO2 emissions from fuel combustion and electricity generation

Author:
Ana Karmela Sumabat; Neil Stephen Lopez; Krista Danielle Yu; Han Hao; Richard Li; Yong Geng; Anthony S.F. Chiu
Source:
Applied energy 2016 v.164 pp. 795-804
ISSN:
0306-2619
Subject:
carbon dioxide; climate change; combustion; developing countries; economic impact; electricity; energy; fuels; greenhouse gas emissions; guidelines; industrial symbiosis; issues and policy; oils; planning; prices
Abstract:
... In order to address climate change and attain sustainable growth, there is a need to quantify driving factors in CO2 emissions in the developing countries. While information for accounting of Philippine CO2 emissions are abound, there is a lack of analytical studies on the driving forces. In this study, the logarithmic mean Divisia index (LMDI) is used to quantify the driving forces of changes in ...
DOI:
10.1016/j.apenergy.2015.12.023

9. Design analysis of supercritical carbon dioxide recuperator

Author:
Jiangfeng Guo
Source:
Applied energy 2016 v.164 pp. 21-27
ISSN:
0306-2619
Subject:
carbon dioxide; heat transfer; mass flow; temperature
Abstract:
... The segmental design method is employed to accurately capture the drastic variations of properties in the supercritical carbon dioxide (S-CO2) recuperator. The local heat capacity flow rates of both fluids have drastic changes in sub-heat exchangers even the mass flow rates of both fluids remain unchanged. When the heat duty is given, the local heat conductance, local temperature difference, local ...
DOI:
10.1016/j.apenergy.2015.11.049

10. Design optimisation for window size, orientation, and wall reflectance with regard to various daylight metrics and lighting energy demand: A case study of buildings in the tropics

Author:
Rizki A. Mangkuto; Mardliyahtur Rohmah; Anindya Dian Asri
Source:
Applied energy 2016 v.164 pp. 211-219
ISSN:
0306-2619
Subject:
buildings; case studies; energy; latitude; lighting; reflectance; tropics
Abstract:
... Design optimisation problems of window size and façade orientation in buildings have been investigated many times, with regard to energy and comfort criteria. To indicate daylight availability in indoor spaces, a number of daylight metrics have been proposed, but those metrics are not always fully accounted in the optimisation process. Also, most studies were conducted for locations with high lati ...
DOI:
10.1016/j.apenergy.2015.11.046

11. Developing a whole building cooling energy forecasting model for on-line operation optimization using proactive system identification

Author:
Xiwang Li; Jin Wen; Er-Wei Bai
Source:
Applied energy 2016 v.164 pp. 69-88
ISSN:
0306-2619
Subject:
algorithms; buildings; capacitance; cooling; energy; expert opinion; neural networks; regression analysis
Abstract:
... Optimal automatic operation of buildings and their subsystems in responding to signals from a smart grid is essential to reduce energy demand, and to improve the power resilience. In order to achieve such automatic operation, high fidelity and computationally efficiency whole building energy forecasting models are needed. Currently, data-driven (black box) models and hybrid (grey box) models are c ...
DOI:
10.1016/j.apenergy.2015.12.002

12. Development of a probabilistic graphical model for predicting building energy performance

Author:
Zheng O’Neill; Charles O’Neill
Source:
Applied energy 2016 v.164 pp. 650-658
ISSN:
0306-2619
Subject:
Bayesian theory; air conditioning; air temperature; case studies; energy; expert opinion; guidelines; heat; issues and policy; models; prediction
Abstract:
... This paper presents the development of a data driven probabilistic graphic model to predict building energy performance. A directed graphical model, namely, a Bayesian Networks (BNs) model is created. Each node in the BNs represents a random variable such as outside air temperature and energy end use. The links between the nodes are probabilistic dependencies among these corresponding variables. T ...
DOI:
10.1016/j.apenergy.2015.12.015

13. Economic value of flexible hydrogen-based polygeneration energy systems

Author:
Karim Farhat; Stefan Reichelstein
Source:
Applied energy 2016 v.164 pp. 857-870
ISSN:
0306-2619
Subject:
coal; economic valuation; electricity; fertilizers; hydrogen; intermediate product; power generation; primary energy; profitability; synthesis; California
Abstract:
... Polygeneration energy systems (PES) have the potential to provide a flexible, high-efficiency, and low-emissions alternative for power generation and chemical synthesis from fossil fuels. This study aims to assess the economic value of fossil-fuel PES which rely on hydrogen as an intermediate product. Our analysis focuses on a representative PES configuration that uses coal as the primary energy i ...
DOI:
10.1016/j.apenergy.2015.12.008

14. Effect of closed-loop controlled resonance based mechanism to start free piston engine generator: Simulation and test results

Author:
Boru Jia; Zhengxing Zuo; Huihua Feng; Guohong Tian; Andrew Smallbone; A.P. Roskilly
Source:
Applied energy 2016 v.164 pp. 532-539
ISSN:
0306-2619
Subject:
combustion; electric generators; engines; mathematical models; methodology; motors
Abstract:
... Two general methods to start the engine are investigated by the linear electric machine operating as a linear motor and identified one for a specific FPEG prototype configuration. Based on that, a novel method to start the engine by mechanical resonance is proposed. Both simulation and test results are presented, and the numerical model is successfully validated. The results show that with a fixed ...
DOI:
10.1016/j.apenergy.2015.11.105

15. Effect of increased renewables generation on operation of thermal power plants

Author:
Patrick Eser; Antriksh Singh; Ndaona Chokani; Reza S. Abhari
Source:
Applied energy 2016 v.164 pp. 723-732
ISSN:
0306-2619
Subject:
coal; electricity costs; equipment; hydrologic models; nuclear power; power plants; weather; Czech Republic; Eastern European region; Germany
Abstract:
... High spatial and temporal resolution optimal power flow simulations of the 2013 and 2020 interconnected grid in Central Western and Eastern Europe regions are undertaken to assess the impact of an increased penetration of renewables on thermal power plants. In contrast to prior studies, the present work models each individual transmission line and power plant within the two regions. Furthermore, f ...
DOI:
10.1016/j.apenergy.2015.12.017

16. Empirical assessment of calculated and actual heating energy use in Hellenic residential buildings

Author:
Constantinos A. Balaras; Elena G. Dascalaki; Kalliopi G. Droutsa; Simon Kontoyiannidis
Source:
Applied energy 2016 v.164 pp. 115-132
ISSN:
0306-2619
Subject:
behavior change; buildings; energy conservation; heat production; heating systems; insulating materials; models; modernization; monitoring; natural gas; prediction; primary energy; production technology; residential housing; surveys; weather; Greece
Abstract:
... The gap between calculated and actual energy use has long be recognized as a major hurdle for a realistic assessment of buildings’ performance and anticipated benefits from energy conservation measures, especially when attempting a national building stock analysis. A multinational European effort to develop a conceptual framework for monitoring the effectiveness of energy retrofit measures applied ...
DOI:
10.1016/j.apenergy.2015.11.027

17. Empirical formula for the mass flux in chemical absorption of CO2 with ammonia droplets

Author:
Munkyoung Choi; Minki Cho; J.W. Lee
Source:
Applied energy 2016 v.164 pp. 1-9
ISSN:
0306-2619
Subject:
absorption; ammonia; carbon dioxide; droplets; mass transfer
Abstract:
... Chemical absorption of CO2 with a droplet of aqueous NH3 was numerically analyzed, and an empirical formula was derived to describe the instantaneous absorption mass flux as a function of instantaneous concentration conditions and other constant operating parameters. The proposed formula fit the numerical results excellently over a wide variation of initial or control parameter values and througho ...
DOI:
10.1016/j.apenergy.2015.10.133

18. Energy and GHG balances of ethanol production from cane molasses in Indonesia

Author:
Dilip Khatiwada; Bharadwaj K. Venkata; Semida Silveira; Francis X. Johnson
Source:
Applied energy 2016 v.164 pp. 756-768
ISSN:
0306-2619
Subject:
alternative fuels; bagasse; bioelectricity; biogas; biomass; climate change; coproducts; crop yield; energy; ethanol; ethanol fuels; ethanol production; fossil fuels; fuel production; gasoline; greenhouse gas emissions; greenhouse gases; land use change; molasses; prices; sugarcane; sugars; wastewater treatment; Indonesia
Abstract:
... This study analyses the sustainability of fuel ethanol production from cane molasses in Indonesia. Life cycle assessment (LCA) is performed to evaluate the net emissions (climate change impact) and energy inputs (resource consumption) in the production chain. The lifecycle greenhouse gas (GHG) emissions in the production and use of ethanol are estimated at 29gCO2eq per MJ of ethanol produced which ...
DOI:
10.1016/j.apenergy.2015.11.032

19. Energy and exergy analyses of Photovoltaic/Thermal flat transpired collectors: Experimental and theoretical study

Author:
Maysam Gholampour; Mehran Ameri
Source:
Applied energy 2016 v.164 pp. 837-856
ISSN:
0306-2619
Subject:
correlation; exergy; guidelines; mathematical models; photovoltaic cells; solar collectors; Iran
Abstract:
... PV/Thermal flat transpired plate is a kind of air-based hybrid Photovoltaic/Thermal (PV/T) system concurrently producing both thermal and electrical energy. In order to develop a predictive model, validate, and investigate the PV/Thermal flat transpired plate capabilities, a prototype was fabricated and tested under outdoor conditions at Shahid Bahonar University of Kerman in Kerman, Iran. In orde ...
DOI:
10.1016/j.apenergy.2015.12.042

20. Energy efficiency potentials: Contrasting thermodynamic, technical and economic limits for organic Rankine cycles within UK industry

Author:
Q. Chen; G.P. Hammond; J.B. Norman
Source:
Applied energy 2016 v.164 pp. 984-990
ISSN:
0306-2619
Subject:
cement; databases; electricity; electricity costs; energy conservation; energy efficiency; heat; industry; steel; United Kingdom
Abstract:
... The laws of thermodynamics set a theoretical limit on the energy savings that can be realised in a given application. This thermodynamic potential cannot be reached in practice, and a technical potential for energy savings is defined by the performance of available technology. Only applications of the technology that are considered economic will usually be considered for installation. This economi ...
DOI:
10.1016/j.apenergy.2015.06.046