Journal of Energy Research and Reviews最新文献_第9页

Temperature Dependence on Transient Hydrodynamic Gravity Driven Flow Down an Inclined Plane 瞬态水动力重力驱动斜面下流的温度依赖性

Journal of Energy Research and Reviews Pub Date : 2022-10-08 DOI: 10.9734/jenrr/2022/v12i3240

Saroj Kumar Ghosh

引用次数: 1

Overview of Smart Grid Technology as a Renewable Energy Source 作为可再生能源的智能电网技术概述

Journal of Energy Research and Reviews Pub Date : 2022-10-08 DOI: 10.9734/jenrr/2022/v12i3239

Tochi Andrew Owunna, E. Obeagu

{"title":"Overview of Smart Grid Technology as a Renewable Energy Source","authors":"Tochi Andrew Owunna, E. Obeagu","doi":"10.9734/jenrr/2022/v12i3239","DOIUrl":"https://doi.org/10.9734/jenrr/2022/v12i3239","url":null,"abstract":"A smart grid is an electricity system that uses digital communications technology to detect, respond to, and take appropriate action in response to changes in demand and a variety of other problems. The secret to effective utilization of distributed energy resources is smart grid technology. Opportunities for renewable energy systems to address electricity generation appear to be growing, especially in light of the importance of climate change, the rising cost of petroleum products, and the falling cost of renewable energy power systems. However, an effective energy management strategy of system must be addressed in order to achieve commercialization and widespread use. Electric power networks have recently benefited from the effective application of the smart grid idea. This research work examines the overview of smart grid technology as a renewable energy source. The concept of a smart grid as well as the advantages and disadvantages of a smart grid renewable energy. The success of promoting renewable energy is significantly influenced by pricing. As a result, it is crucial to evaluate the distinctive qualities connected with alternative sources of renewable energy in order to get insight into the pricing of renewable energy. A survey of recent work in renewable smart grid systems shows the exciting future potential of such research traits. Both policymakers and those who create and use renewable energy systems would benefit from this.","PeriodicalId":244756,"journal":{"name":"Journal of Energy Research and Reviews","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130601656","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

Overview of the Benefits and Drawbacks of Renewable Energy in Nigeria 概述尼日利亚可再生能源的利弊

Journal of Energy Research and Reviews Pub Date : 2022-09-28 DOI: 10.9734/jenrr/2022/v12i3238

Tochi Andrew Owunna, E. Obeagu

引用次数: 1

A Design and Analysis of Artificial Vortex (ArVo) Based Stand-Alone Microgrid on Universities of Bangladesh 基于人工涡流(ArVo)的孟加拉大学单机微电网设计与分析

Journal of Energy Research and Reviews Pub Date : 2022-09-20 DOI: 10.9734/jenrr/2022/v12i2237

Md. Mostakim Rahman, Md. Zubaer Mahmud Rony, N. Nahar, Most Surmita Akter, Tanjuma Akter, Mashur Al Owashi, S. Haque

{"title":"A Design and Analysis of Artificial Vortex (ArVo) Based Stand-Alone Microgrid on Universities of Bangladesh","authors":"Md. Mostakim Rahman, Md. Zubaer Mahmud Rony, N. Nahar, Most Surmita Akter, Tanjuma Akter, Mashur Al Owashi, S. Haque","doi":"10.9734/jenrr/2022/v12i2237","DOIUrl":"https://doi.org/10.9734/jenrr/2022/v12i2237","url":null,"abstract":"The administration of universities of Bangladesh faces financial drawbacks every year due to subsidies in the field of electrical power cost. The reason behind this is, students, consume more electric power than they pay for. To solve this problem a modern hydroelectric technology can be implemented. This new technology is called Artificial Vortex (ArVo). This method of power generation utilizes the natural tendency of whirlpool formation of fluids by defining a new flow path thereby causing a turbulent circular movement of fluid layers. Every day students and teachers use a huge volume of water. This water is excluded from the university premises by the wastewater paths. This wastewater flow can be utilized to generate electricity. In Artificial Vortex, a curved wall is designed in the water path to concentrate the water flow and generate rotational energy. This rotational energy is implemented on a vertical axis turbine. This turbine is rotated by the water flow impact and produce clean electricity through an alternator. The cost of electricity has been simulated by HOMER Pro software.","PeriodicalId":244756,"journal":{"name":"Journal of Energy Research and Reviews","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131247247","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

Influence of Number of Flat Locally-Fabricated Turbine Blades on the Performance of a Simplified Pico Hydropower System 局部制造平叶片数量对简化微型水电系统性能的影响

Journal of Energy Research and Reviews Pub Date : 2022-09-02 DOI: 10.9734/jenrr/2022/v12i230297

A. Edeoja, Gertrude Enekole Aboje, Samuel Lawal, Kenneth Ede Ode, J. Ibrahim

{"title":"Influence of Number of Flat Locally-Fabricated Turbine Blades on the Performance of a Simplified Pico Hydropower System","authors":"A. Edeoja, Gertrude Enekole Aboje, Samuel Lawal, Kenneth Ede Ode, J. Ibrahim","doi":"10.9734/jenrr/2022/v12i230297","DOIUrl":"https://doi.org/10.9734/jenrr/2022/v12i230297","url":null,"abstract":"Five locally fabricated turbines with 3, 5, 7, 9 and 11 flat blades were locally fabricated and tested in conjunction with a vertical penstock of diameter 0.0762 m and nozzles of diameters 0.0158, 0.0212, 0.0266, 0.0343 and 0.042 m in a simplified Pico hydropower system. This study is an aspect of an ongoing work aimed at ultimately implementing the system for small power generation. The turbines were mounted at the foot of an overhead reservoir 6.95 m high. A 1.11 kW pump was used to recycle the water downstream of the turbine from an underground reservoir to the overhead reservoir, and a 3.9 kVA alternator used for the on-load tests. The turbine was linked to a 3.9 kVA alternator by a belt drive of pulley ratio of 6:1. The mean rotational speeds of each turbine and alternator shafts, volume of water displaced, and voltage developed were measured for each nozzle diameter. These data were used to compute flow rate, shaft and electrical power, and efficiency for each operation. Dimensionless flow, head and power coefficients as well as specific speed were computed and functional characteristic curves relating plotted. The turbine with 11 blades developed the maximum voltage with the nozzle diameter of 0.042 m and the least voltage for 0.0158 m diameter nozzle. The corresponding estimated power output computed using the manufacturer’s specifications on the alternator was also highest and the mean maximum efficiency based on the estimated power output was 0.4482. This indicates that the larger nozzle diameters combined with the turbine with higher number of flat blades favour beneficial system operation. The results indicate good potential for the system as a simple, environmentally friendly and decentralized small power generation system that can contribute to the current energy mix in Nigeria.","PeriodicalId":244756,"journal":{"name":"Journal of Energy Research and Reviews","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126476773","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

Linear Regression and ARIMA Models for Electricity Demand Forecasting in West Africa 西非电力需求预测的线性回归和ARIMA模型

Journal of Energy Research and Reviews Pub Date : 2022-08-31 DOI: 10.9734/jenrr/2022/v12i230296

Kokou Prosper Semekonawo, S. Kam

引用次数: 0

A New Investigation on Resonance of the Sun with a Decisive Importance to Magnetohydrodynamic (MHD) Pure Shear Flow Permeated by an Oblique Magnetic Field 斜磁场渗透下对磁流体动力学(MHD)纯剪切流具有决定性意义的太阳共振新研究

Journal of Energy Research and Reviews Pub Date : 2022-08-29 DOI: 10.9734/jenrr/2022/v12i230295

S. Ghosh

引用次数: 1

Energy Resources of Southern Africa: Potentials and Sustainable Energy Delivery 南部非洲的能源资源:潜力和可持续能源输送

Journal of Energy Research and Reviews Pub Date : 2022-08-27 DOI: 10.9734/jenrr/2022/v12i230294

Y. Sanusi, Chukwudi B. Ohadugha, Valda I. Martins, Sheriffdeen A. Olaide

{"title":"Energy Resources of Southern Africa: Potentials and Sustainable Energy Delivery","authors":"Y. Sanusi, Chukwudi B. Ohadugha, Valda I. Martins, Sheriffdeen A. Olaide","doi":"10.9734/jenrr/2022/v12i230294","DOIUrl":"https://doi.org/10.9734/jenrr/2022/v12i230294","url":null,"abstract":"Energy resources constitute a substantial part of natural resources of many nations. The energy resources confer advantages on the resource nations as they provide the base for energy development, support economic development and provide export commodities. Southern Africa has some fossil fuel resources of natural oil, natural gas, and coal. It also has uranium deposits for nuclear energy development. With the global attention shifting to renewable and cleaner energy sources, it is advantageous that Southern Africa is also endowed with renewable energy resources. The advantage of its position relative to the Equator, the vast land that accommodates high wind speed, the vast tropical forest that yields bio-energy resources and coastlines that permit access to the ocean for off-shore wind energy and ocean energy, provide the renewable energy resources to help in achieving universal access. The objectives of the study are to profile the non-renewable energy resources of the Southern Africa subregion, understand the potentials of the renewable energy resources and draw implications of the energy resources for energy delivery in the Southern Africa subregion. The paper notes that while non-renewable energy resources are confined to a few countries, all the countries have advantages of renewable energy resources with adequate distribution of wind and solar energy resources. The paper also notes that clean non-renewable resources of natural gas and uranium can be adequately combined with the renewable energy resources to harvest the advantages of the two groups of energy resources for achieving the twin goals of universal energy access and green energy development.","PeriodicalId":244756,"journal":{"name":"Journal of Energy Research and Reviews","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116007083","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

Thermal Performance Analysis of a Linear Fresnel Concentrating Solar Collector Absorber Tube 线性菲涅耳聚光太阳能集热器吸收管的热性能分析

Journal of Energy Research and Reviews Pub Date : 2022-08-09 DOI: 10.9734/jenrr/2022/v12i130293

Izuchukwu F. Okafor, Ikechukwu A. Obi

{"title":"Thermal Performance Analysis of a Linear Fresnel Concentrating Solar Collector Absorber Tube","authors":"Izuchukwu F. Okafor, Ikechukwu A. Obi","doi":"10.9734/jenrr/2022/v12i130293","DOIUrl":"https://doi.org/10.9734/jenrr/2022/v12i130293","url":null,"abstract":"Linear Fresnel solar collectors are suitable for a wide range of applications, which include steam generation for power generation, industrial process heat, solar cooling, institutional and domestic hot water production etc. The thermal performance of a linear Fresnel solar collector absorber tube was investigated in this study for different fluid mass flow rates, heat flux intensities, heat transfer fluid inlet temperatures, ambient air temperatures and external loss heat transfer rate. Turbulent flow liquid water heat transfer fluid and uniform circumferential heat flux distribution boundary were considered under steady-state conditions. The fluid flow was considered incompressible. This study was limited to a first order model approximation for thermal performance of a linear Fresnel solar collector absorber tube. The heat transfer fluid and absorber tube material properties were considered constant and independent of temperature. The results indicated that the absorber tube outlet heat transfer fluid temperature decreased with an increase in the Reynolds number and increased with the heat flux intensities. Thermal efficiency increased with an increase in the heat transfer fluid mass flow rate and however, decreased with increase in pressure drop and the consequent pumping power requirement. It was also found that the thermal efficiency of the collector decreased with an increase in the fluid bulk inlet temperature and decreased with an increase in the external loss heat transfer rate.","PeriodicalId":244756,"journal":{"name":"Journal of Energy Research and Reviews","volume":"125 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133473412","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

Modelling, Design and Performance Analysis of LCL Filter for Grid Connected Three Phase Power Converters 并网三相变流器LCL滤波器建模、设计及性能分析

Journal of Energy Research and Reviews Pub Date : 2022-08-08 DOI: 10.9734/jenrr/2022/v12i130291

A. Essien, F. U. Ilo

引用次数: 0