能源与动力工程(英文)最新文献_第2页

Comparative Study on Energy Consumption Structure of Ordinary Rural Households and Rural Tourism Households in Zhejiang Province, China 浙江省农村普通家庭与乡村旅游家庭能源消费结构比较研究

能源与动力工程(英文) Pub Date : 2023-01-01 DOI: 10.4236/epe.2023.151003

Bingxin Fan, Wenxuan Li, Zilu Yin, Meiyan Wang, Chen Chen

引用次数: 0

Indian Solar Panel Initiatives in Reducing Carbon Dioxide Emissions 印度太阳能电池板减少二氧化碳排放的倡议

能源与动力工程(英文) Pub Date : 2023-01-01 DOI: 10.4236/epe.2023.154009

Manoj K. Khanna, Sarika Malik, H. Kumar, . Suruchi

引用次数: 1

Object-Oriented Modeling of the Variation of Acceleration and Deceleration Characteristics in Relation to Speed Bands for Railway Vehicles 铁道车辆加减速特性随速度带变化的面向对象建模

能源与动力工程(英文) Pub Date : 2023-01-01 DOI: 10.4236/epe.2023.158014

Hyun-Soo Jeong, J. Park, Han-Sol Lee

引用次数: 0

Solar Photovoltaics Development in Nigeria: Drivers, Barriers, and Policies 尼日利亚的太阳能光伏发展:驱动因素、障碍和政策

能源与动力工程(英文) Pub Date : 2023-01-01 DOI: 10.4236/epe.2023.1510017

Abiodun Adeola Akinola

{"title":"Solar Photovoltaics Development in Nigeria: Drivers, Barriers, and Policies","authors":"Abiodun Adeola Akinola","doi":"10.4236/epe.2023.1510017","DOIUrl":"https://doi.org/10.4236/epe.2023.1510017","url":null,"abstract":"Energy access is vital to a nation’s economic growth and its populace’s social well-being. Still, there is a lack of adequate energy in Nigeria, negatively affecting the country’s socio-economic development. Due to the inadequate energy supply, some manufacturing companies shut their operations, and most Nigerians now use backup generators (BUGs) with their attendant health hazards, environmental pollution, and global warming. The need for energy access and a sustainable energy supply through renewable energy (RE) resources necessitates adopting solar photovoltaics (PV) in Nigeria. Studies on Nigeria’s energy accessibility and sustainability are generally on RE development and a few on solar PV applications. This research covers the need for an in-depth analysis of the growth of solar PV in Nigeria, and the research question is: What factors promote or limit the adoption of solar photovoltaics in Nigeria? A method of Systematic Literature Review (SLR) and Thematic Analysis (TA) is employed for the analysis. The research findings are divided into drivers, barriers, and policies. Some identified factors promoting the adoption of solar PV are energy poverty and the urgency to improve electricity supply, the ease of its operation and maintenance, and the Nigerian government’s commitment to clean electricity supply with policy initiatives and increased awareness of solar PV applications. Conversely, some noticed factors mitigating the growth of solar PV are poor tariff systems, dual subsidies of electricity and petroleum, and lack of finance and economic incentives.","PeriodicalId":62938,"journal":{"name":"能源与动力工程(英文)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136204740","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Minimization of Electric Power Losses on 132 kV and 220 kV Uganda Electricity Transmission Lines 132千伏和220千伏乌干达输电线路的电力损耗最小化

能源与动力工程(英文) Pub Date : 2023-01-01 DOI: 10.4236/epe.2023.152006

O. Living, S. N. Nnamchi, K. Ukagwu, A. Abdulkarim, Z. O. Jagun

引用次数: 2

Analysis of Light Load Efficiency Characteristics of a Dual Active Bridge Converter Using Wide Band-Gap Devices 宽频带隙双有源桥式变换器轻载效率特性分析

能源与动力工程(英文) Pub Date : 2023-01-01 DOI: 10.4236/epe.2023.1510019

Bongwoo Kwak

{"title":"Analysis of Light Load Efficiency Characteristics of a Dual Active Bridge Converter Using Wide Band-Gap Devices","authors":"Bongwoo Kwak","doi":"10.4236/epe.2023.1510019","DOIUrl":"https://doi.org/10.4236/epe.2023.1510019","url":null,"abstract":"In this paper, the zero voltage switching (ZVS) region of a dual active bridge (DAB) converter with wide band-gap (WBG) power semiconductor device is analyzed. The ZVS region of a DAB converter varies depending on output power and voltage ratio. The DAB converters operate with hard switching at light loads, it is difficult to achieve high efficiency. Fortunately, WBG power semiconductor devices have excellent hard switching characteristics and can increase efficiency compared to silicon (Si) devices. In particular, WBG devices can achieve ZVS at low load currents due to their low parasitic output capacitance (Co,tr) characteristics. Therefore, in this paper, the ZVS operating resion is analyzed based on the characteristics of Si, silicon carbide (SiC) and gallium nitride (GaN). Power semiconductor devices. WBG devices with low Co,tr operate at ZVS at lower load currents compared to Si devices. To verify this, experiments are conducted and the results are analyzed using a 3 kW DAB converter. For Si devices, ZVS is achieved above 1.4 kW. For WBG devices, ZVS is achieved at 700 W. Due to the ZVS conditions depending on the switching device, the DAB converter using Si devices achieves a power conversion efficiency of 91% at 1.1 kW output. On the other hand, in the case of WBG devices, power conversion efficiency of more than 98% is achieved under 11 kW conditions. In conclusion, it is confirmed that the WBG device operates in ZVS at a lower load compared to the Si device, which is advantageous in increasing light load efficiency.","PeriodicalId":62938,"journal":{"name":"能源与动力工程(英文)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135059919","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Battery-Free Power Supply for Wireless Sensor Combining Photovoltaic Cells and Supercapacitors 结合光伏电池和超级电容器的无线传感器无电池电源

能源与动力工程(英文) Pub Date : 2023-01-01 DOI: 10.4236/epe.2023.153007

V. Boitier, B. Estibals, F. Huet, L. Seguier

引用次数: 4

Performance Improvement of CIGS Solar Cell: A Simulation Approach by SCAPS-1D CIGS太阳能电池性能改进:基于SCAPS-1D的仿真方法

能源与动力工程(英文) Pub Date : 2023-01-01 DOI: 10.4236/epe.2023.158015

Md Ferdous Wahid, Md. Nuralam Howlader, Nazmul Ahasan, Md. Mizanur Rahman

{"title":"Performance Improvement of CIGS Solar Cell: A Simulation Approach by SCAPS-1D","authors":"Md Ferdous Wahid, Md. Nuralam Howlader, Nazmul Ahasan, Md. Mizanur Rahman","doi":"10.4236/epe.2023.158015","DOIUrl":"https://doi.org/10.4236/epe.2023.158015","url":null,"abstract":"Thin-film solar cells possess the distinct advantage of being cost-effective and relatively simple to manufacture. Nevertheless, it is of utmost importance to enhance their overall performance. In this research work, copper indium gallium selenide (CIGS)-based ultra-thin solar cell (SC) configuration (Ag/ZnO/ZnSe/CIGS/Si/Ni) has been designed and examined using SCAPS-1D. The numerical calculations revealed that this new design resulted in a substantial improvement in SC performance. This study explores the utilization of two absorber layers, CIGS and Si, both with a total of 2 μm thickness, to enhance device performance while reducing material costs, observing an increase in key SC parameters as the Si absorber layer thickness is increased, reaching a maximum efficiency of 29.13% when CIGS and Si thicknesses are set at 0.4 μm and 1.6 μm, respectively with doping absorber doping density of 10 14 cm −3 . Furthermore, we analyze the impact of variation in absorber and buffer layer thickness, as well as doping concentration, surface recombination velocity (SRV), electron affinity, series-shunt resistance, and temperature, on optimized CIGS SC parameters such as short-circuit current density (J SC ), open circuit voltage (V OC ), fill factor (FF), and power conversion efficiency (PCE). The findings yielded by the investigation offer significant elucidation regarding the fabrication of economically viable and highly efficient non-hazardous CIGS","PeriodicalId":62938,"journal":{"name":"能源与动力工程(英文)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76722150","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Analysis of Emissions Profiles of Hydraulic Fracturing Engine Technologies 水力压裂发动机技术排放特征分析

能源与动力工程(英文) Pub Date : 2023-01-01 DOI: 10.33915/etd.11350

N.A.J. Wells

引用次数: 0

The Evaluation of Wind Energy Potentials in South Africa 南非风能潜力评估

能源与动力工程(英文) Pub Date : 2022-04-29 DOI: 10.5923/j.ep.20221201.02

E. Merem, Y. Twumasi, J. Wesley, D. Olagbegi, M. Crisler, C. Romorno, M. Alsarari, P. Isokpehi, A. Hines, G. Hirse, G. S. Ochai, E. Nwagboso, S. Fageir, S. Leggett, J. Offiah, S. Emeakpor

引用次数: 0