American Journal of Energy Research最新文献_第2页

Simulations of Antireflecting Coating on a Monocrystalline Silicon Solar Cell: Influence of Optical Parameters on a Double Layers 单晶硅太阳电池增透膜的模拟:光学参数对双层增透膜的影响

American Journal of Energy Research Pub Date : 2023-02-16 DOI: 10.12691/ajer-11-1-3

Alassane Diaw, Oumar A. Niasse, N. Mbengue, B. Ba

引用次数: 1

Quantum Movement Theory of Alternating Current 交流电的量子运动理论

American Journal of Energy Research Pub Date : 2023-02-16 DOI: 10.12691/ajer-11-1-4

Cooper R. Wade, Olusegun S. Tomomewo

引用次数: 0

Solar PV Technology Cost Dynamics and Challenges for US New Entrants 美国新进入者的太阳能光伏技术成本动态和挑战

American Journal of Energy Research Pub Date : 2023-02-06 DOI: 10.12691/ajer-11-1-2

Solomon Evro, Cooper R. Wade, Olusegun S. Tomomewo

引用次数: 1

The Impact of the Electric Vehicle Transition on U.S. Grid Infrastructure and Energy Policy 电动汽车转型对美国电网基础设施和能源政策的影响

American Journal of Energy Research Pub Date : 2023-02-03 DOI: 10.12691/ajer-11-1-1

Alec J. Ernst, Cooper R. Wade, David G. Dyer, Daniel K. Boakye Danquah, Olusegun S. Tomomewo

引用次数: 0

Study of the Capacity of a Photo Pile Based on CIGS in Frequency Dynamic Regime Under Lighting Monochromatic in Frequency Modulation: Effect of the Wavelength and Angular Frequency 单色光调频下基于CIGS的光桩频率动态容量研究:波长和角频率的影响

American Journal of Energy Research Pub Date : 2023-01-03 DOI: 10.12691/ajer-10-1-3

Jean Jude Domingo, D. Diallo, Alain Kassine Ehemba, M. Dieng

引用次数: 0

Analysis of Biomass, Converting Wood to Energy: Missouri as a Case Study in Feasibility 生物质分析，将木材转化为能源:密苏里州可行性案例研究

American Journal of Energy Research Pub Date : 2022-12-04 DOI: 10.12691/ajer-10-1-2

Alec Ernst, Dr. Olusegun Tomomewo

引用次数: 0

Design and Simulation of a Solar Brine Dryer for the Production of Sea Salt 用于海盐生产的太阳能盐水干燥器的设计与仿真

American Journal of Energy Research Pub Date : 2022-10-22 DOI: 10.12691/ajer-10-1-1

V. Prodjinonto, Ayihaou Armand Djossou, Gérard Wilfried Adjahossou, J. Adounkpe, C. Ahouannou

引用次数: 0

Numerical Simulation of Cross Flow in In-Line Square Tube Array to Estimate the Convective Heat Transfer Coefficient 直列方管阵列内交叉流动的数值模拟及对流换热系数估算

American Journal of Energy Research Pub Date : 2021-10-26 DOI: 10.12691/ajer-9-2-2

H. Omar, S. Alfarawi, Azeldin El-Sawi, Mohammed Zeo

{"title":"Numerical Simulation of Cross Flow in In-Line Square Tube Array to Estimate the Convective Heat Transfer Coefficient","authors":"H. Omar, S. Alfarawi, Azeldin El-Sawi, Mohammed Zeo","doi":"10.12691/ajer-9-2-2","DOIUrl":"https://doi.org/10.12691/ajer-9-2-2","url":null,"abstract":"Flow cross tube banks is an important application of different types of heat exchangers, such as compact heat exchangers, and baffled shell and tube heat exchangers. Baffles are used in shell and tube heat exchangers to allow the flow to become cross the tubes. This ensures the mix and increases the convective heat transfer coefficient. Design models of baffled shell and tube heat exchanger, which ensures the cross flow, relay on convective heat transfer coefficient. Which obtained from empirical correlation available in the literature. This work is a numerical approach to simulate flow cross a single tube and an in-line square tube array to estimate the convective heat transfer coefficient. This approach is an alternative to the experimental approach. In order to calculate the heat transfer coefficient and it’s relation to the Reynolds number for a single tube and for an in-line square tube array, a Computation Fluid Dynamic [CFD] software (ANSYS FLUENT), Which utilizes Reynolds Average Navier Stokes [RANS] method to solve the momentum equation in 3-D, was utilized to conduct the numerical simulations. Each model was simulated at 4 different entry velocities of (10, 15, 20, 25 m/s) for a Reynold’s number ranging between 6000-35000. The turbtulence model used was K-ω sst. The results obtained via the CFD simulations were validated with an empirical correlation for the two models. These results have deviations from the empirical results ranging between 5 to 22%. The numerical simulation and the empirical correlation results have identical trends for the case of a single tube and for the case of in-line square tube array. For further improvement in results validations, further studies should be made.","PeriodicalId":213184,"journal":{"name":"American Journal of Energy Research","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129006270","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

Optimal Design and Performance Analysis of a Grid Connected Photovoltaic System in Togo 多哥并网光伏系统优化设计与性能分析

American Journal of Energy Research Pub Date : 2021-07-29 DOI: 10.12691/ajer-9-1-6

Y. Laré, Koffi Sagna, A. R. Ali-Tagba

{"title":"Optimal Design and Performance Analysis of a Grid Connected Photovoltaic System in Togo","authors":"Y. Laré, Koffi Sagna, A. R. Ali-Tagba","doi":"10.12691/ajer-9-1-6","DOIUrl":"https://doi.org/10.12691/ajer-9-1-6","url":null,"abstract":"In Togo, the production of electrical energy is mainly hydroelectric and thermal, but the needs remain far greater than the resources; in particular in the city of Lome, the inhabitants of the city try to fill this energy deficit, among others, by solar systems. Once installed, and in the presence of the sun, solar panels operate continuously until the end of their service, regardless of whether the use is effective or not; which therefore causes losses in the event of overproduction and non-storage. To overcome this problem, we have studied in this article a PV installation (a solar power plant) which is connected to the electrical network, which represents a significant saving in investment and in operation. Thus, in our study, we designed and optimized our PV-Grid model which shows a photovoltaic system connected to the electricity grid through DC / DC boosting power converters and a DC / AC inverter. In this model, we have fixed the meteorological conditions relating to Togo, such as incident solar illumination and temperature, thus making it possible to fix the reference variables Ipvref (photovoltaic current produced) on the DC / DC side and Irmref (final current injected into the network) on the DC / AC side. Thanks to the results obtained, we can recommend this model of photovoltaic system connected to the grid under Togo's conditions and at the same time develop an energy policy and an integration of renewable electricity in Togo strong enough to trigger long-term sustainable development.","PeriodicalId":213184,"journal":{"name":"American Journal of Energy Research","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129352832","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: 3

Analytical Study of Power Generation by Photovoltaic System for Al-Riyadh and Al-Jubail Regions in Saudi Arabia 沙特阿拉伯利雅得和朱拜勒地区光伏发电分析研究

American Journal of Energy Research Pub Date : 2021-07-27 DOI: 10.12691/ajer-9-1-5

Ghormallah S. Alzahrani, A. Nahhas

{"title":"Analytical Study of Power Generation by Photovoltaic System for Al-Riyadh and Al-Jubail Regions in Saudi Arabia","authors":"Ghormallah S. Alzahrani, A. Nahhas","doi":"10.12691/ajer-9-1-5","DOIUrl":"https://doi.org/10.12691/ajer-9-1-5","url":null,"abstract":"This paper presents an analytical study of photovoltaic (PV) power generation of two regions in Saudi Arabia. Renewable energy resources have recently been acknowledged as a vital component of global economic stability, particularly in countries like Saudi Arabia. Saudi Arabia is a vibrant country that is experiencing significant population increase, which has resulted in high electricity usage. Because of the strong solar radiation, huge rainless area, and lengthy sunlight, Saudi Arabia has a bright future in terms of using solar energy more broadly. As a result, the Saudi Arabian government has invested billions of dollars in large-scale renewable and sustainable energy projects around the country, backed by strong funding. Saudi Arabia wants to boost solar power output to meet a large amount of the country's prospective energy needs. Various installations and research projects are currently being carried out throughout the kingdom to meet its solar power ambitions. As a result, it is critical to keep up with the latest developments in the solar business in the country. Development and Research (R&D). In this work a simulation (PVsyst 7.1) software program to simulate the installation of PV cells on two regions of Saudi Arabia including Al-Al-Riyadh and Al-Jubail regions. Also, the possibility of using the tracker system to track the sunshine and generate more power from PV systems is discussed. This paper presents, however, is a partnership and it intends to examine the existing state, growth, potential, resources, sustainability performance, and prospects of renewable energy in Saudi Arabia in accordance with Saudi Vision 2030.","PeriodicalId":213184,"journal":{"name":"American Journal of Energy Research","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121399087","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: 1