Journal of Energy Research and Reviews最新文献_第3页

Application of Machine Learning to Air Pollution Studies: A Systematic Review 机器学习在空气污染研究中的应用:系统综述

Journal of Energy Research and Reviews Pub Date : 2023-09-05 DOI: 10.9734/jenrr/2023/v15i2302

Marvelous Ukachukwu, Nnemeka Uzoamaka, Nnama Elochukwu

{"title":"Application of Machine Learning to Air Pollution Studies: A Systematic Review","authors":"Marvelous Ukachukwu, Nnemeka Uzoamaka, Nnama Elochukwu","doi":"10.9734/jenrr/2023/v15i2302","DOIUrl":"https://doi.org/10.9734/jenrr/2023/v15i2302","url":null,"abstract":" \u0000Air pollution is a serious global issue that threatens human life and health, as well as the environment. Machine learning algorithms can be used to predict air pollution level data from both natural and anthropogenic activities. Environmental and government agencies can use these speculations to issue air pollution alerts. This review work is an attempt at the recent status and development of scientific studies on the use of machine learning algorithms to model air pollution challenges. This study uses the scientific web as a primary search engine and covers over 100 highly peer-reviewed articles from 2000-2022. Therefore, this review paper aims to highlight the various application methods of machine learning, notably data mining, in air pollution control and monitoring. It also comprehensively analyses published works by renowned scholars and authors worldwide, discussing how machine learning has been used in mitigating air pollution. By examining the chronological trends of machine learning in air pollution, this review paper provides an up-to-date account of the successes achieved in regulating air pollution using machine learning techniques. Additionally, it identifies areas that require further research, critically analyzing the current state of knowledge and potential research directions.","PeriodicalId":244756,"journal":{"name":"Journal of Energy Research and Reviews","volume":"78 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126006469","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

A Study of DC Switching Electric ARC Characteristics for Low Voltages 低压直流开关电电弧特性研究

Journal of Energy Research and Reviews Pub Date : 2023-08-29 DOI: 10.9734/jenrr/2023/v15i1301

Y. S. S. Ariyarathne, C. Jayatissa, D. Silva

{"title":"A Study of DC Switching Electric ARC Characteristics for Low Voltages","authors":"Y. S. S. Ariyarathne, C. Jayatissa, D. Silva","doi":"10.9734/jenrr/2023/v15i1301","DOIUrl":"https://doi.org/10.9734/jenrr/2023/v15i1301","url":null,"abstract":"Aims: The purpose of this paper is to investigate the DC electric arc characteristics for low voltages. And explore the relationship among arc time, arc voltage and arc current. \u0000Study Design: The experimental setup mainly consisted of a switch contact pair, variable resistive load, and a variable power supply. An oscilloscope was used to collect the voltage variations of the switch and the load. The voltage variation data were used to do further analysis. \u0000Place and Duration of Study: Department of Physics and Electronics, University Of Kelaniya, Sri Lanka between September 2021 and May 2022. \u0000Methodology: Voltage variations between the contact pair and the load voltage were measured using an oscilloscope for both switching on and off operations. The experiment was performed for four voltage levels; 60 VDC, 80 VDC, 100 VDC, and 120 VDC. For each voltage level, four load conditions were tested. Therein, a total of 16 different conditions were tested. Five tests were done for each condition. The average values were taken for analysis. \u0000Conclusion: When the switch contacts start to separate, the arc voltage must reach the arc starting voltage to form an arc. Moreover, according to the supply voltage and current, there is always a maximum voltage value that arc can reach, which is less than the supply voltage (arc ending voltage). After the arc was formed in DC systems, the arc voltage variation with time can be modeled using the trigonometry tan function.","PeriodicalId":244756,"journal":{"name":"Journal of Energy Research and Reviews","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124024180","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

Heat Transfer Coefficient for a Glazed Transpired Solar Collector in Natural Convection Mode 自然对流模式下玻璃蒸发太阳能集热器的传热系数

Journal of Energy Research and Reviews Pub Date : 2023-08-10 DOI: 10.9734/jenrr/2023/v15i1300

M. Ekoja, S. Onyegegbu, O. V. Ekechukwu

引用次数: 0

Probing for the Energy-Conserving Load Rates of the Asynchronous Motor by Harnessing the Efficiency and Power Factor Synergy 利用效率与功率因数协同作用探讨异步电动机的节能负荷率

Journal of Energy Research and Reviews Pub Date : 2023-08-09 DOI: 10.9734/jenrr/2023/v15i1298

Omogbai Nelson Oyakhilomen

{"title":"Probing for the Energy-Conserving Load Rates of the Asynchronous Motor by Harnessing the Efficiency and Power Factor Synergy","authors":"Omogbai Nelson Oyakhilomen","doi":"10.9734/jenrr/2023/v15i1298","DOIUrl":"https://doi.org/10.9734/jenrr/2023/v15i1298","url":null,"abstract":"In the light of the energy saving drive and environmental concerns in today’s world, the technical and procurement staff of industries are encouraged to invariably take into consideration, motor efficiency as well as power factor in their motor load analyses prior to embarking on motor installation/replacement decisions. It is believed that with this practice, which hinges on a tradeoff between loading at high operating power factor and loading at high operating efficiency, the motor-driven business may stand a better chance of being run greener and more economical. This article proposes a method that engineers in research or in charge of the operations and maintenance of the 3-phase squirrel cage induction motor (SCIM) in business, may deploy to arrive at the energy efficient load range/rates for the machines of interest. The method was developed with the aid of the following motor curves viz: the load/efficiency curve, the load/compensated power factor curve as well as the load/kilovolt ampere reactive (KVAR) curve; and demonstrated on three different SCIM ratings, to determine their respective most energy efficient bounds of loading. Field data, z-score analysis and the power loss simulations were used for validating the proposed method. The energy efficient load range/rate was found to be machine-specific and the width of this load range seemed to be jointly governed by the high efficiency span of the load-efficiency curve as well as the load-wide profile of the power factor over the most part of the SCIM loading, up to full load. The mean optimal loading for the machines investigated, ranged from 66% - 73%, with standard deviations not exceeding 15.85%.","PeriodicalId":244756,"journal":{"name":"Journal of Energy Research and Reviews","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124951146","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

Relationship between Energy Consumption, Carbon Dioxide Emissions and Economic Growth: Evidence from Selected Top Oil Energy-Consuming Countries 能源消费、二氧化碳排放与经济增长的关系:来自主要石油能源消费国的证据

Journal of Energy Research and Reviews Pub Date : 2023-08-09 DOI: 10.9734/jenrr/2023/v15i1299

Maryam Noorymotlagh, S. Çiftcioglu

{"title":"Relationship between Energy Consumption, Carbon Dioxide Emissions and Economic Growth: Evidence from Selected Top Oil Energy-Consuming Countries","authors":"Maryam Noorymotlagh, S. Çiftcioglu","doi":"10.9734/jenrr/2023/v15i1299","DOIUrl":"https://doi.org/10.9734/jenrr/2023/v15i1299","url":null,"abstract":"With rising climate change concerns and increasing energy demand, many of the developed countries are pursuing sustainable and low carbon economic development plans. The dramatic use of fossil-fuel energy in the economy increases the level of carbon dioxide emissions. Carbon dioxide (CO2) is the dominant greenhouse gas that intensifies the global warming phenomena as a rising challenge over the last two decades. As developed nations around the world are taking immediate steps to address this issue, it is vital to use energy efficiently and minimize environmental pollution effects. Thus, this research examined the relationship between energy consumption, CO2 emissions, and economic growth for the top oil energy-consuming countries, including the U.S., Japan, Canada, and Australia. It also estimated the impact of other macroeconomic parameters comprising inflation rate, investment rate, and trade openness on economic growth. Multiple regression analysis was employed for the time series data covering the timespan from 1990-2018. The empirical findings indicated that energy consumption has a positive and significant impact on economic growth in the selected countries. Unsurprisingly, CO2 emissions, a proxy for fuel-based energy use, had a destructive influence on the environment. Moreover, the results showed that a positive association existed between investment rate, trade openness, and economic growth. Conversely, the inflation rate in all of the selected countries had an insignificant impact on growth output. Policies such as efficient use of energy, increasing the rate of tax, replacing bio-diesel fuel, or implementing renewable energy instead of fossil-fuels were suggested to curb carbon emissions.","PeriodicalId":244756,"journal":{"name":"Journal of Energy Research and Reviews","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129675180","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

Numerical Design of an Off-Grid Wind Energy Systems for Small Scale Residential Power Supply 小型住宅离网风电系统的数值设计

Journal of Energy Research and Reviews Pub Date : 2023-08-09 DOI: 10.9734/jenrr/2023/v15i1297

Umar Muhammad Kangiwa, Gwani Mohammed, Zayyanu, Hussaini, S. Umar

{"title":"Numerical Design of an Off-Grid Wind Energy Systems for Small Scale Residential Power Supply","authors":"Umar Muhammad Kangiwa, Gwani Mohammed, Zayyanu, Hussaini, S. Umar","doi":"10.9734/jenrr/2023/v15i1297","DOIUrl":"https://doi.org/10.9734/jenrr/2023/v15i1297","url":null,"abstract":"The socio-economic developments of all nations depend duly on electrical energy supply. Nigeria as a country is faced with challenges of poor electric power supply due to the challenges from the power holding company of Nigeria (PHCN) which have left many households and isolated areas with no access to electricity. The fact that fossil fuel generators contributes to climate changes, renewable energy such as wind could be the best alternative. This paper presents the numerical design of an off-grid wind energy systems for powering load demand of two bedrooms apartment. The load demand of two bedroom flats were estimated and sizes of wind turbine, storage batteries and inverter with respect to typical load demand were numerically estimated. The performance of three 1 KW horizontal axis wind turbines of the same capacity but from different manufacturers namely; Bergey’s (BWC XL.1), Wind energy (WE.7) and Hummer wind energy (H3.1) were numerically tested using the average monthly wind speed data of Aliero Kebbi state, Nigeria. The result shows that integrating 1 kW wind turbine with 6 pieces of 200 Ah batteries on 24 V system and 1 kVA inverter would be feasible for 505 W (4.37 kWh/day) load demand with two days autonomy. The annual mean energy generated by the BWC XL.1, WE.7 and H3.1 using annual mean wind speed 5.03 m/s were 1782 kWh/yr, 1451kWh/yr and 1909 kWh/yr, attaining efficiencies of 44.45 % 33.22 % and 33.22 % respectively. Based on these results, BWC XL.1 could be best alternative wind turbine for the location because of its optimum efficiency. In addition, its energy generation of 1782 kWh/yr is 11.72% greater than 1595 kWh/year, the typical residential household load demand.","PeriodicalId":244756,"journal":{"name":"Journal of Energy Research and Reviews","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129942119","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

Under-voltage Protection of Power Transmission Lines 输电线路欠压保护

Journal of Energy Research and Reviews Pub Date : 2023-08-04 DOI: 10.9734/jenrr/2023/v15i1296

B. Nasir

引用次数: 0

The Environmental Impact of the Alaoji-Onitsha Transmission Line Project and Resettlement Action Plan 阿拉吉-奥尼沙输电线工程的环境影响及移民安置行动计划

Journal of Energy Research and Reviews Pub Date : 2023-08-02 DOI: 10.9734/jenrr/2023/v15i1295

B. U. Uzodinma, I. Agbagwa

引用次数: 0

Marginal Fields Development in Nigeria: A Review of Extant Strategies 尼日利亚边际油田开发:现有战略回顾

Journal of Energy Research and Reviews Pub Date : 2023-07-31 DOI: 10.9734/jenrr/2023/v15i1294

Kalu-Ulu, Torty C., Okon, Anietie N., A. Dulu

{"title":"Marginal Fields Development in Nigeria: A Review of Extant Strategies","authors":"Kalu-Ulu, Torty C., Okon, Anietie N., A. Dulu","doi":"10.9734/jenrr/2023/v15i1294","DOIUrl":"https://doi.org/10.9734/jenrr/2023/v15i1294","url":null,"abstract":"This paper focuses on the development of marginal fields in Nigeria, the challenges, economic viability, and the role of the government in implementing the contributions of marginal fields to the national oil production output. Also, the previously reported marginal field development and management practices in the Niger Delta oilfield are x-rayed. Following the definition of the marginal field is an overview of different types of marginal field development in the Niger Delta region. Also, the United Kingdom Oil and Gas Recovery Regulatory Commission, the United States Security Exchange Commission, and the Nigerian government's categorization of what compose of a marginal field are included. In addition, the participation of the Nigerian federal government and contributions to the development of marginal fields in the bidding of marginal assets to the development of infrastructure are presented. Particular attention is paid to the factors that affect the development and choice of production strategies in the marginal fields of the Niger Delta. These factors discussed in detail in the document include environmental, technical, social, political, and economic factors. Again, different management and development strategies used by some marginal fields of the Niger Delta are x-rayed and presented with a particular focus on three of those strategies. The three common approaches in the Niger Delta marginal field development strategy are water flooding, infill drilling, and infrastructure sharing. These approaches have made marginal fields in Nigeria operational, competitive, and economically viable to date.","PeriodicalId":244756,"journal":{"name":"Journal of Energy Research and Reviews","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132110964","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

Critical Review of Bioenergy Applications and Sustainable Development: Evidence from Uganda 生物能源应用与可持续发展:来自乌干达的证据

Journal of Energy Research and Reviews Pub Date : 2023-07-26 DOI: 10.9734/jenrr/2023/v14i4293

Geoffrey Ssebabi Mutumba

{"title":"Critical Review of Bioenergy Applications and Sustainable Development: Evidence from Uganda","authors":"Geoffrey Ssebabi Mutumba","doi":"10.9734/jenrr/2023/v14i4293","DOIUrl":"https://doi.org/10.9734/jenrr/2023/v14i4293","url":null,"abstract":"This study investigates bioenergy applications and sustainable development in Uganda. Traditional biomass dominates Uganda’s energy mix with 89% of overall primary energy consumption. Uganda must reduce traditional biomass energy consumption, if it is to reinforce its sustainable development goals. It seeks to assess bioenergy applications; it also analyses drivers and barriers of biomass consumption. \u0000Bioenergy is a renewable energy source that is conveniently available. This explains why it is dominating in most of the Sub-Saharan Africa. However, most of this is the traditional biomass, because of the insufficient technology to modernise its use in the developing world. This study is to provide a useful pattern for this transition from traditional to modern bioenergy use to occur. \u0000The findings indicate an in-built use of traditional biomass because of the drivers that outweigh the constraints of its use. Suggested policy measures to transition to modern biomass energy consumption are made. \u0000This study provides critical review of bioenergy application and development in the Ugandan setting. This is a landmark in informing the economic planner on the right policy direction of diversifying energy use from traditional to modern sources.","PeriodicalId":244756,"journal":{"name":"Journal of Energy Research and Reviews","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127708698","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