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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
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1. 0D modeling aspects of flame stretch in spark ignition engines and comparison with experimental results

Author:
Sokratis Demesoukas; Pierre Brequigny; Christian Caillol; Fabien Halter; Christine Mounaïm-Rousselle
Source:
Applied energy 2016 v.179 pp. 401-412
ISSN:
0306-2619
Subject:
burning; combustion; equations; fuels; heat; iso-octanes; methane; models; propane; spark ignition engines
Abstract:
... With the different kinds of fuel now available, modern spark ignition engines have to be adapted, owing not only to the difference between the characteristic heat of combustion of the different fuels, but also to the response of the flame to stretch. As the burning rate is a function of the laminar burning speed which is a function of the flame stretch, this parameter has to be taken into account ...
DOI:
10.1016/j.apenergy.2016.07.007

2. 3D multi-physics modeling of a gas diffusion electrode for oxygen reduction reaction for electrochemical energy conversion in PEM fuel cells

Author:
Nicolò S. Vasile; Ronan Doherty; Alessandro H.A. Monteverde Videla; Stefania Specchia
Source:
Applied energy 2016 v.175 pp. 435-450
ISSN:
0306-2619
Subject:
catalysts; diffusivity; electrochemistry; electrodes; energy conversion; equations; fuel cells; mass transfer; metals; model validation; models; oxygen
Abstract:
... A 3D multi-physics, multi-component and not isothermal model is developed to analyze the effects of catalyst structures on the performance of a gas diffusion electrode (GDE) cell toward the oxygen reduction reaction using dry oxygen as a reactant. The model includes Stokes–Brinkman, Maxwell–Stefan, and modified Butler–Volmer equations for simulating the performance of the GDE cell, solved by Comso ...
DOI:
10.1016/j.apenergy.2016.04.030

3. A MPC approach for optimal generation scheduling in CSP plants

Author:
Manuel Jesús Vasallo; José Manuel Bravo
Source:
Applied energy 2016 v.165 pp. 357-370
ISSN:
0306-2619
Subject:
electricity; electricity costs; markets; sales; solar energy; thermal energy; weather forecasting
Abstract:
... Thermal energy storage (TES) systems allow concentrated solar power (CSP) producers to participate in a day-ahead market. Therefore, the optimal power scheduling problem can be posed, whose objective is the maximization of profits derived from electricity sales. The daily generation schedule has to be offered in advance, usually the previous day before a certain time, thus an electricity price and ...
DOI:
10.1016/j.apenergy.2015.12.092

4. A Pareto-based multi-objective optimization algorithm to design energy-efficient shading devices

Author:
Marina Khoroshiltseva; Debora Slanzi; Irene Poli
Source:
Applied energy 2016 v.184 pp. 1400-1410
ISSN:
0306-2619
Subject:
algorithms; climate; energy efficiency; lighting; shade; solar radiation
Abstract:
... In this paper we address the problem of designing new energy-efficient static daylight devices that will surround the external windows of a residential building in Madrid. Shading devices can in fact largely influence solar gains in a building and improve thermal and lighting comforts by selectively intercepting the solar radiation and by reducing the undesirable glare. A proper shading device can ...
DOI:
10.1016/j.apenergy.2016.05.015

5. A Robust Model Predictive Control for efficient thermal management of internal combustion engines

Author:
Francesco Pizzonia; Teresa Castiglione; Sergio Bova
Source:
Applied energy 2016 v.169 pp. 555-566
ISSN:
0306-2619
Subject:
boiling; carbon dioxide; control methods; cooling systems; energy use and consumption; greenhouse gas emissions; model uncertainty; models; spark ignition engines
Abstract:
... Optimal thermal management of modern internal combustion engines (ICE) is one of the key factors for reducing fuel consumption and CO2 emissions. These are measured by using standardized driving cycles, like the New European Driving Cycle (NEDC), during which the engine does not reach thermal steady state; engine efficiency and emissions are therefore penalized. Several techniques for improving IC ...
DOI:
10.1016/j.apenergy.2016.02.063

6. A Technology Selection and Operation (TSO) optimisation model for distributed energy systems: Mathematical formulation and case study

Author:
Dagoberto Cedillos Alvarado; Salvador Acha; Nilay Shah; Christos N. Markides
Source:
Applied energy 2016 v.180 pp. 491-503
ISSN:
0306-2619
Subject:
buildings; carbon; case studies; emissions; energy; energy costs; heat; mathematical models; stakeholders
Abstract:
... This paper presents a model which simultaneously optimises the selection and operation of technologies for distributed energy systems in buildings. The Technology Selection and Operation (TSO) model enables a new approach for the optimal selection and operation of energy system technologies that encompasses whole life costing, carbon emissions as well as real-time energy prices and demands; thus, ...
DOI:
10.1016/j.apenergy.2016.08.013

7. A bi-layer optimization based temporal and spatial scheduling for large-scale electric vehicles

Author:
Lifu He; Jun Yang; Jun Yan; Yufei Tang; Haibo He
Source:
Applied energy 2016 v.168 pp. 179-192
ISSN:
0306-2619
Subject:
electric vehicles; electricity costs; fossil fuels; planning; wind power
Abstract:
... Electric vehicle (EV) is a promising, environmental friendly technique for its potential to reduce the using of fossil fuels. Massive EVs pose both opportunities and challenges for power systems, especially with the growing amount of wind-power integration. This paper investigates the problem of collaborative optimization scheduling of generators, EVs and wind power. A novel bi-layer optimization ...
DOI:
10.1016/j.apenergy.2016.01.089

8. A bi-level optimisation framework for electric vehicle fleet charging management

Author:
Branimir Škugor; Joško Deur
Source:
Applied energy 2016 v.184 pp. 1332-1342
ISSN:
0306-2619
Subject:
algorithms; batteries; dynamic programming; models; response surface methodology; vehicles (equipment)
Abstract:
... The paper proposes a bi-level optimisation framework for Electric Vehicle (EV) fleet charging based on a realistic EV fleet model including a transport demand sub-model. The EV fleet is described by an aggregate battery model, which is parameterised by using recorded driving cycle data of a delivery vehicle fleet. The EV fleet model is used within the inner level of the bi-level optimisation frame ...
DOI:
10.1016/j.apenergy.2016.03.091

9. A bi-level stochastic scheduling optimization model for a virtual power plant connected to a wind–photovoltaic–energy storage system considering the uncertainty and demand response

Author:
Liwei Ju; Zhongfu Tan; Jinyun Yuan; Qingkun Tan; Huanhuan Li; Fugui Dong
Source:
Applied energy 2016 v.171 pp. 184-199
ISSN:
0306-2619
Subject:
energy; income; models; power plants; prediction; uncertainty; wind power; China
Abstract:
... To reduce the uncertain influence of wind power and solar photovoltaic power on virtual power plant (VPP) operation, robust optimization theory (ROT) is introduced to build a stochastic scheduling model for VPP considering the uncertainty, price-based demand response (PBDR) and incentive-based demand response (IBDR). First, the VPP components are described including the wind power plant (WPP), pho ...
DOI:
10.1016/j.apenergy.2016.03.020

10. A bibliometric analysis based review on wind power price

Author:
Cuixia Gao; Mei Sun; Yong Geng; Rui Wu; Wei Chen
Source:
Applied energy 2016 v.182 pp. 602-612
ISSN:
0306-2619
Subject:
bibliometric analysis; energy; fossil fuels; fuel combustion; prices; researchers; wind power; Europe; United States
Abstract:
... With the increasing negative effects of fossil fuel combustion, many countries have paid more attention on supporting environmentally friendly energy generation, particularly renewable and sustainable energy sources (RES). However, renewables still cannot economically compete with fossil-fuels and are facing new challenges. Appropriate electricity pricing mechanism plays a vital role on mitigating ...
DOI:
10.1016/j.apenergy.2016.08.144

11. A blueprint for an energy policy in Greece with considerations of climate change

Author:
Kalliopi Chatzizacharia; Vasilis Benekis; Dimitris Hatziavramidis
Source:
Applied energy 2016 v.162 pp. 382-389
ISSN:
0306-2619
Subject:
carbon dioxide; climate; energy; energy policy; global warming; greenhouse gas emissions; lignite; prediction; rain; solar collectors; system optimization; temperature; time series analysis; wind turbines; Greece
Abstract:
... An approach for a plan to meet the energy needs of the state of Greece in conjunction with assumed responsibilities to confront global warming is presented. Time series of climate indicators like average temperature and rain precipitation together with energy consumption and CO2 emissions are examined for stationarity and causality. Predictions of energy needs for the next 25years and CO2 emission ...
DOI:
10.1016/j.apenergy.2015.10.087

12. A brief review on convection heat transfer of fluids at supercritical pressures in tubes and the recent progress

Author:
Dan Huang; Zan Wu; Bengt Sunden; Wei Li
Source:
Applied energy 2016 v.162 pp. 494-505
ISSN:
0306-2619
Subject:
carbon dioxide; fuels; convection; mass transfer; prediction
Abstract:
... This study presents a state-of-the-art overview on heat transfer characteristics of fluids (mainly water, carbon dioxide and hydrocarbon fuels) flowing in smooth tubes and enhanced tubes at supercritical pressures and tries to obtain a fundamental understanding of the unique characteristics. Heat transfer in enhanced tubes is much better than that in smooth tubes with a larger pressure drop penalt ...
DOI:
10.1016/j.apenergy.2015.10.080

13. A capacity model based on charging process for state of health estimation of lithium ion batteries

Author:
Xue Li; Jiuchun Jiang; Le Yi Wang; Dafen Chen; Yanru Zhang; Caiping Zhang
Source:
Applied energy 2016 v.177 pp. 537-543
ISSN:
0306-2619
Subject:
batteries; lithium; longevity; model validation; models
Abstract:
... The incremental capacity (IC) analysis method is widely used to analyze the aging origins and state of health (SOH) of lithium ion batteries. This paper analyzes the technical difficulties during the application of the IC analysis method at first. A universal capacity model based on charging curve is then proposed, which not only inherits the advantages of IC analysis method but also avoids the te ...
DOI:
10.1016/j.apenergy.2016.05.109

14. A carbon emissions reduction index: Integrating the volume and allocation of regional emissions

Author:
Jiandong Chen; Shulei Cheng; Malin Song; Yinyin Wu
Source:
Applied energy 2016 v.184 pp. 1154-1164
ISSN:
0306-2619
Subject:
carbon; carbon dioxide; global warming; greenhouse gas emissions; pressure; China
Abstract:
... Given the acceleration of global warming and rising greenhouse gas emissions, all countries are facing the harsh reality of the need to reduce carbon emissions. In this study, we propose an index to quantify the pressure faced by policymakers to reduce such emissions, termed the carbon emissions reduction index. This index allows us to observe the effect of carbon emissions volume on the pressure ...
DOI:
10.1016/j.apenergy.2016.03.032

15. A cascade pulse tube cooler capable of energy recovery

Author:
Longyi Wang; Mei Wu; Xiao Sun; Zhihua Gan
Source:
Applied energy 2016 v.164 pp. 572-578
ISSN:
0306-2619
Subject:
acoustics; cooling; energy recovery; temperature
Abstract:
... A pulse tube cryocooler (PTC) cannot work with Carnot efficiency due basically to the expansion work that has to be dissipated thermally at the warm end of the pulse tube, this dissipation is especially phenomenal with high cooling capacity or at high temperatures which reduces the COP and limits the application of PTC above 120K. Therefore, how to recover this amount of dissipated work becomes a ...
DOI:
10.1016/j.apenergy.2015.12.010

16. A circular stacking strategy for microfluidic fuel cells with volatile methanol fuel

Author:
Yifei Wang; Dennis Y.C. Leung
Source:
Applied energy 2016 v.184 pp. 659-669
ISSN:
0306-2619
Subject:
air; electrodes; electrolytes; fuel cells; fuels; methanol; oxidants; potassium hydroxide; vapors
Abstract:
... Microfluidic fuel cell (MFC) stacking is a prerequisite to improve its power output for practical applications. Unlike the stacking of membrane-based fuel cells, MFC stacking generally involves complex fluidic management, such as anolyte and catholyte distribution, and spent electrolyte collection, which greatly increases the system’s complexity. In addition, the operational robustness of MFC stac ...
DOI:
10.1016/j.apenergy.2016.11.019

17. A city scale degree-day method to assess building space heating energy demands in Strasbourg Eurometropolis (France)

Author:
M. Kohler; N. Blond; A. Clappier
Source:
Applied energy 2016 v.184 pp. 40-54
ISSN:
0306-2619
Subject:
air temperature; buildings; energy; heat; heat island; heat sums; insulating materials; methodology; models; France
Abstract:
... Efficient strategies are required to reduce space heating energy demands in buildings at city scale. Models taking into account the dynamic of the Urban Heat Island (UHI) phenomenon may be useful tools to help urban planners in this task. In this paper, we propose a new methodology to assess the energy demands for space heating in buildings at city scale: a degree-day method is applied, coupled wi ...
DOI:
10.1016/j.apenergy.2016.09.075

18. A combined method for surface selection and layer pattern optimization of a multistream plate-fin heat exchanger

Author:
Zhe Wang; Yanzhong Li
Source:
Applied energy 2016 v.165 pp. 815-827
ISSN:
0306-2619
Subject:
air; entropy; friction; heat exchangers; heat transfer; models; temperature
Abstract:
... In the design of multistream plate-fin heat exchangers (MPFHEs), surface selection and layer pattern optimization have been investigated as two independent problems and still remain at the empirical stage, which becomes an obstacle for optimizing the performance of MPFHEs. A combined method of the equipartition of entropy production and the balance of local heat load is proposed in the present res ...
DOI:
10.1016/j.apenergy.2015.12.118

19. A combined model based on multiple seasonal patterns and modified firefly algorithm for electrical load forecasting

Author:
Liye Xiao; Wei Shao; Tulu Liang; Chen Wang
Source:
Applied energy 2016 v.167 pp. 135-153
ISSN:
0306-2619
Subject:
algorithms; case studies; electricity; industry; markets; models; seasonal variation; New South Wales; Queensland
Abstract:
... Short-term load forecasting (STLF) plays an irreplaceable role in the efficient management of electric systems. Particularly in the electricity market and industry, accurate forecasting could provide effective future plans and economic operations for operators of utilities and power systems. Hence, a more precise and stable load-forecasting model is essentially needed in the field of electricity l ...
DOI:
10.1016/j.apenergy.2016.01.050

20. A comparative study between a Rankine cycle and a novel intra-cycle based waste heat recovery concepts applied to an internal combustion engine

Author:
Robert Morgan; Guangyu Dong; Angad Panesar; Morgan Heikal
Source:
Applied energy 2016 v.174 pp. 108-117
ISSN:
0306-2619
Subject:
air; air flow; combustion; energy conversion; fuels; heat recovery; internal combustion engines; methodology; models; wastes
Abstract:
... A novel intra-cycle waste heat recovery (ICWHR) methodology, applied to an internal combustion engine is presented in this study. Through a split type thermodynamic cycle design, quasi-isothermal compression of the charge air and isobaric combustion of the air/fuel mixture can be performed separately in two chambers. Within such a design, the exhaust heat can be recovered to the intake air flow be ...
DOI:
10.1016/j.apenergy.2016.04.026