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You searched for: Journal name Energy Remove constraint Journal name: Energy Publication year rev 7978-2022 Remove constraint Publication year rev: 7978-2022 Source 2022 v.247 Remove constraint Source: 2022 v.247
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1. 1D diesel engine cycle modeling integrated with MOPSO optimization for improved NOx control and pressure boost

Author:
Hadi Taghavifar; Farhad Mazari
Source:
Energy 2022 v.247 pp. 123517
ISSN:
0360-5442
Subject:
air; air temperature; algorithms; catalysts; chemical species; diesel engines; diesel fuel; energy; heat exchangers; prediction; torque
Abstract:
... In current investigation, one dimensional gas dynamic and chemical species prediction are simulated according to diesel engine with air cooler and catalyst. The results of engine cycle modeling are then verified with experimental data and the robust validation is obtained. The key parameters of air/fuel ratio, compression ratio, swirl number, coolant temperature, and air temperature of the heat ex ...
DOI:
10.1016/j.energy.2022.123517

2. Adaptive envelope protection control of wind turbines under varying operational conditions

Author:
Mustafa Sahin; Ilkay Yavrucuk
Source:
Energy 2022 v.247 pp. 123544
ISSN:
0360-5442
Subject:
algorithms; critical load; energy; simulation models; wind speed; wind turbines
Abstract:
... This study introduces a new Envelope Protection System (EPS) algorithm for wind turbines. The algorithm is adaptive to turbine-changing operational conditions and can effectively reduce turbine excessive/ultimate loads. Through an adaptive neural network, the proposed algorithm continuously monitors instantaneous wind and turbine states. Simultaneously, it predicts the near future response of the ...
DOI:
10.1016/j.energy.2022.123544

3. Analysis of time series models for Brazilian electricity demand forecasting

Author:
Carlos E. Velasquez; Matheus Zocatelli; Fidellis B.G.L. Estanislau; Victor F. Castro
Source:
Energy 2022 v.247 pp. 123483
ISSN:
0360-5442
Subject:
electricity; energy; time series analysis; Brazil
Abstract:
... Electricity forecasting contributes to have an idea of the electricity needs for the expansion of the electric system, the availability of the power plants according to the installed capacity and the way of the electric system operation. Therefore, this work studied the three time series approximations and their combinations considering two analyses: the first one considers different historical da ...
DOI:
10.1016/j.energy.2022.123483

4. A Bayesian approach with urban-scale energy model to calibrate building energy consumption for space heating: A case study of application in Beijing

Author:
Wei Na; Mingming Wang
Source:
Energy 2022 v.247 pp. 123341
ISSN:
0360-5442
Subject:
Bayesian theory; Markov chain; Monte Carlo method; carbon; case studies; data collection; energy efficiency; heat; models; China
Abstract:
... Urban-scale energy model can be a crucial tool for evaluating and in turn propelling the implementation of energy efficiency and low carbon programs for buildings and cites. A variety of disputes on integrity and correctness lie in basic statistical data of China's building energy use. Inadequate information and performance gap caused by input uncertainties are the common obstacles to produce reli ...
DOI:
10.1016/j.energy.2022.123341

5. Bi-objective optimization of transcritical CO2 heat pump systems

Author:
Ahmed Okasha; Norbert Müller; Kalyanmoy Deb
Source:
Energy 2022 v.247 pp. 123469
ISSN:
0360-5442
Subject:
algorithms; carbon dioxide; control methods; cooling; energy; evaporation; heat pumps; system optimization; temperature
Abstract:
... For the transcritical CO₂ heat pump cycle, the gas cooler (GC) pressure can be controlled independently and it can be optimized for optimum COP. Control correlations can be developed offline either based on simulations or experiments or optimization can be done online in real time with continuous pressure and temperature measurements at different locations. The online methods provide more accurate ...
DOI:
10.1016/j.energy.2022.123469

6. A CVaR-based risk assessment method for park-level integrated energy system considering the uncertainties and correlation of energy prices

Author:
Yunfei Mu; Congshan Wang; Yan Cao; Hongjie Jia; Qingzhu Zhang; Xiaodan Yu
Source:
Energy 2022 v.247 pp. 123549
ISSN:
0360-5442
Subject:
Monte Carlo method; electricity; electricity costs; energy; models; natural gas; renewable energy sources; risk; risk assessment process
Abstract:
... The park-level integrated energy system (PIES), a typical user-side energy supply mode, has developed rapidly in recent years due to its economic and environmentally friendly advantages. Natural gas and part of the electricity of PIES are usually purchased from external gas or power systems and then converted to other forms of energy, such as heating and cooling. However, the uncertainties and cor ...
DOI:
10.1016/j.energy.2022.123549

7. Capric-stearic acid mixture impregnated carbonized waste sugar beet pulp as leak-resistive composite phase change material with effective thermal conductivity and thermal energy storage performance

Author:
Ahmet Sarı; Gökhan Hekimoğlu; Yasemin Karabayır; R.K. Sharma; Hasan Arslanoğlu; Osman Gencel; V.V. Tyagi
Source:
Energy 2022 v.247 pp. 123501
ISSN:
0360-5442
Subject:
cost effectiveness; enthalpy; industrial wastes; latent heat; sugar beet pulp; temperature; thermal conductivity; thermal energy; thermal stability
Abstract:
... The present investigation aims to develop a potential composite phase change material (PCM) with leak-resistive and high thermal conductivity. Sugar beet pulp (CSBP) as an industrial waste was carbonized to produce a porous framework and used for solving leakage issue and boosting thermal conductivity of capric-stearic acid eutectic mixture (CSEM) used as PCM. FTIR and XRD results proved that the ...
DOI:
10.1016/j.energy.2022.123501

8. Carbon capture and storage in the coastal region of China between Shanghai and Hainan

Author:
Kai Zhang; Hon Chung Lau; Shuyang Liu; Hangyu Li
Source:
Energy 2022 v.247 pp. 123470
ISSN:
0360-5442
Subject:
carbon dioxide; carbon sequestration; cement; coasts; energy; iron; oils; rivers; steel; China; East China Sea; Taiwan
Abstract:
... In this study, we evaluate offshore carbon capture and storage (CCS) opportunities in the coastal region of China between Shanghai and Hainan. A plant-by-plant analysis of stationary CO₂ emission and field-by-field evaluation of CO₂ sinks are presented. Results show that CO₂ emission from power plants is 1.0 Gtpa while that from refineries, iron and steel mills, and cement factories is 0.7 Gtpa. T ...
DOI:
10.1016/j.energy.2022.123470

9. Charging demand forecasting of electric vehicles considering uncertainties in a microgrid

Author:
Chuanshen Wu; Sufan Jiang; Shan Gao; Yu Liu; Haiteng Han
Source:
Energy 2022 v.247 pp. 123475
ISSN:
0360-5442
Subject:
energy; traffic; weather
Abstract:
... The currently increasing integration of electric vehicles (EVs) in microgrids (MGs) has gained significant attention. However, affected by the high uncertainties of weather, traffic, and driver behavior, the charging demand of EVs is difficult to forecast accurately. In this study, an optimal parameter forecasting method is presented to improve the forecasting accuracy of charging demand of EVs in ...
DOI:
10.1016/j.energy.2022.123475

10. Co-optimization of a novel distributed energy system integrated with hybrid energy storage in different nearly zero energy community scenarios

Author:
Zhijian Liu; Ying Li; Guangyao Fan; Di Wu; Jiacheng Guo; Guangya Jin; Shicong Zhang; Xinyan Yang
Source:
Energy 2022 v.247 pp. 123553
ISSN:
0360-5442
Subject:
carbon; carbon dioxide; electricity; heat; primary energy; solar energy; storage technology; system optimization
Abstract:
... Many countries have proposed plans on distributed energy systems. However, distributed energy systems still can be improved in system optimization design methods, new-type load, and application scenarios. Therefore, a novel distributed energy system is developed combining solar energy utilization with hybrid energy storage technology, i.e., heat storage and electricity storage. Secondly, with prim ...
DOI:
10.1016/j.energy.2022.123553

11. Co-optimization of speed planning and energy management for intelligent fuel cell hybrid vehicle considering complex traffic conditions

Author:
Zhigen Nie; Yuan Jia; Wanqiong Wang; Zheng Chen; Rachid Outbib
Source:
Energy 2022 v.247 pp. 123476
ISSN:
0360-5442
Subject:
batteries; energy; environmental impact; fuel cells; hydrogen; operating costs; prediction; traffic; vehicles (equipment)
Abstract:
... Fuel cell hybrid vehicles (FCHVs) offer great opportunities to reduce vehicle's operation cost and mitigate environmental impact. However, high-quality real-time energy management of FCHV is a difficult task due to different influences from complex traffic environments, such as dynamic changes of preceding and rear vehicle state, road slope and road coefficient. To address this problem, a cooperat ...
DOI:
10.1016/j.energy.2022.123476

12. Co-pyrolysis of coal slime and cattle manure by TG–FTIR–MS and artificial neural network modeling: Pyrolysis behavior, kinetics, gas emission characteristics

Author:
Chunlong Jiang; Wenliang Zhou; Haobo Bi; Zhanshi Ni; Hao Sun; Qizhao Lin
Source:
Energy 2022 v.247 pp. 123203
ISSN:
0360-5442
Subject:
activation energy; cattle manure; coal; energy; neural networks; prediction; pyrolysis; spectroscopy; synergism
Abstract:
... In this study, Thermogravimetric-Mass spectrometry-Fourier transform infrared spectrometry (TG-MS-FTIR) were used to study the co-pyrolysis behavior and gaseous products of coal slime (CS) and cattle manure (CM). By establishing different artificial neural network (ANN) prediction models, it was found that MLP13 model is the best prediction model. It was determined that the pyrolysis process of CM ...
DOI:
10.1016/j.energy.2022.123203

13. Coated, packed and combined wire finned tube adsorption cooling and desalination system using metal-organic framework: Numerical study

Author:
Ibrahim Albaik; Raya Al-Dadah; Saad Mahmoud; Mohamed A. Ismail; Mohammed K. Almesfer
Source:
Energy 2022 v.247 pp. 123506
ISSN:
0360-5442
Subject:
adsorbents; adsorption; aluminum; cooling; coordination polymers; desalination; energy; fumarates; geometry; heat; heat exchangers; mass transfer; models; vapor pressure
Abstract:
... The adsorber bed design and the method of integrating the adsorbent material in the bed have a major effect on the overall performance of the adsorption system. This study numerically investigates the performance of wire finned tube adsorber bed with aluminium fumarate metal-organic framework material integrated either using coating, packing, or combination of coating and packing. A 3D heat and ma ...
DOI:
10.1016/j.energy.2022.123506

14. Effect of activation conditions and iron loading content on the catalytic cracking of toluene by biochar

Author:
Haolin Liu; Chao Ye; Yousheng Xu; Qisong Wang
Source:
Energy 2022 v.247 pp. 123409
ISSN:
0360-5442
Subject:
adsorption; biochar; catalysts; catalytic activity; electrostatic interactions; energy; micropores; microstructure; oxygen; steam; surface area; temperature; toluene
Abstract:
... Biochar (BC) is a catalyst carrier with a porous structure and low production cost. Herein, a Fe-loaded BC catalyst was prepared by impregnation and calcination, and use toluene to determine the removal efficiency of the catalyst. When the Fe impregnation solution mass fraction was 4%, the removal efficiency for the Fe-loaded BC catalyst was 94.1%. The amount of H₂ produced by toluene catalysis is ...
DOI:
10.1016/j.energy.2022.123409

15. Effect of hydrothermal pretreatment on deashing and pyrolysis characteristics of bamboo shoot shells

Author:
Qi Gao; Liangmeng Ni; Yuyu He; Yanmei Hou; Wanhe Hu; Zhijia Liu
Source:
Energy 2022 v.247 pp. 123510
ISSN:
0360-5442
Subject:
activation energy; bamboo shoots; biocompatible materials; bioenergy; carbon; energy; hydrochars; pyrolysis; risk; temperature; thermal stability
Abstract:
... Bamboo shoot shells (BSS) were treated at hydrothermal temperatures of 160 °C, 180 °C, and 200 °C with residence times of 6 h, 8 h, and 10 h. The variation of ash-forming elements and the influence of deashing behavior on fuel and pyrolysis characteristics of BSS hydrochars were originally investigated during hydrothermal pretreatment (HTP) process. The results showed that HTP decreased 53.82–64.0 ...
DOI:
10.1016/j.energy.2022.123510

16. Energy efficiency and factor productivity in Pakistan: Policy perspectives

Author:
Muhammad Yousaf Raza; Boqiang Lin
Source:
Energy 2022 v.247 pp. 123461
ISSN:
0360-5442
Subject:
COVID-19 infection; economic development; economic investment; economic sustainability; energy efficiency; greenhouses; issues and policy; labor productivity; pollution; Pakistan
Abstract:
... Energy efficiency shows tremendous potential for enhancing economic growth while also conquering the emissions of greenhouse gases. It is generally acknowledged that Pakistan's decarbonization has to be escorted by energy efficiency developments. This study analyzes key factors behind the energy consumption variations at the sectorial level, such as agriculture, industrial and services that consum ...
DOI:
10.1016/j.energy.2022.123461

17. Exergoeconomic analysis of hybrid sCO2 Brayton power cycle

Author:
A. Alenezi; L. Vesely; J. Kapat
Source:
Energy 2022 v.247 pp. 123436
ISSN:
0360-5442
Subject:
air; cost effectiveness; electricity; energy efficiency; exergy; heat; heat exchangers; natural gas; power generation; solar energy
Abstract:
... A hybrid power cycle is designed based on the Allam cycle configuration. The system utilizes solar power as its primary heat source and natural gas oxy-combustion as a complementing heat source. The purpose of the complimenting heat source is continual production when the sun is not available and to ensure the reliability, responsiveness, and availability of the cycle for power generation with min ...
DOI:
10.1016/j.energy.2022.123436

18. Experimental investigation of the flow and extinguishment characteristics of gel-stabilized foam used to control coal fire

Author:
Quanlin Shi; Botao Qin; Yinghao Hao; Hongbiao Li
Source:
Energy 2022 v.247 pp. 123484
ISSN:
0360-5442
Subject:
coal; energy; equations; foams; gels; rheological properties; seepage; thermal stability
Abstract:
... For understanding the extinguishing effectiveness of gel-stabilized foam fluids, the rheological law, flow characteristics, and extinguishment process were analyzed systematically in this study. The results revealed that gel-stabilized foam was non-Newton fluids, and the foam demonstrated shear-thinning behavior due to the orientation changes in molecular chains and structure destruction of three- ...
DOI:
10.1016/j.energy.2022.123484

19. Experimental investigation on the effects of deflector angles on the power performance of a Savonius turbine for hydrokinetic applications in small rivers

Author:
Mohd Badrul Salleh; Noorfazreena M. Kamaruddin; Zulfaa Mohamed-Kassim
Source:
Energy 2022 v.247 pp. 123432
ISSN:
0360-5442
Subject:
Reynolds number; energy; hydrodynamics; power generation; rural electrification; torque; water flow; wind tunnels
Abstract:
... A vertical-axis drag-driven Savonius turbine has various advantages and has demonstrated strong potential in hydrokinetic applications for sustainable rural electrification. However, its applicability is limited by the low coefficient of power inherent in the system. To solve this issue, the present study aims to evaluate the power performance improvement of a conventional Savonius turbine using t ...
DOI:
10.1016/j.energy.2022.123432

20. Experimental study on effects of pilot injection strategy on combustion and emission characteristics of diesel/methanol dual-fuel engine under low load

Author:
Junheng Liu; Pengcheng Wu; Qian Ji; Ping Sun; Pan Wang; Zhongwei Meng; Hongjie Ma
Source:
Energy 2022 v.247 pp. 123464
ISSN:
0360-5442
Subject:
combustion; energy; heat; methanol; soot
Abstract:
... In order to explore the optimization scheme of injection strategy for dual-fuel engine at low load, diesel/methanol dual-fuel combustion mode was conducted on a turbocharged intercooled engine. Effects of methanol ratio, main and pilot injection parameters on combustion process, emission characteristics and fuel economy of dual-fuel engine were systematically studied at 30% load of 1800r/min. Resu ...
DOI:
10.1016/j.energy.2022.123464