Journal of Solar Energy Research Updates最新文献_第4页

A Review Study on the Modeling and Simulation of Solar Tower Power Plants 太阳能塔式电站建模与仿真研究进展

Journal of Solar Energy Research Updates Pub Date : 2020-01-20 DOI: 10.31875/2410-2199.2020.07.9

Samir Benammar

{"title":"A Review Study on the Modeling and Simulation of Solar Tower Power Plants","authors":"Samir Benammar","doi":"10.31875/2410-2199.2020.07.9","DOIUrl":"https://doi.org/10.31875/2410-2199.2020.07.9","url":null,"abstract":"Much attention has been paid to concentrating solar power technologies (CSP) in the last two decades. Among the CSP that have been developed so far are the parabolic trough, the parabolic dish, the Fresnel collectors and the solar tower. However, the most widely used of these technologies is the solar tower power plant (STPP). This review aims to summarize the state-of-the-art modeling approaches used to simulate the performances and the reliability of the STPP. The review includes the different analytical and numerical models used in literature to predict the thermal efficiency of these STPP. A general description and comparison of different CSP technologies are first provided. An overview of STPP technology, current status and a presentation of the major components including the heliostat field and the solar receiver are then highlighted. The different research works, developed on the modeling and simulation of the STPP performances and reliability, are also investigated in this review. In summary, this work presents a comprehensive review of the existing numerical and analytical models and could serve as a guideline to develop new models for future trends in solar tower power plants.","PeriodicalId":197215,"journal":{"name":"Journal of Solar Energy Research Updates","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122562245","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

Maximum Power Point Tracking of a Network-Connected Photovoltaic System Based on Gravity Search Algorithm and Fuzzy Logic Controller 基于重力搜索算法和模糊控制器的并网光伏系统最大功率跟踪

Journal of Solar Energy Research Updates Pub Date : 2020-01-20 DOI: 10.31875/2410-2199.2020.07.6

M. Hossein Mehraban Jahromi, Hossein Dehghani Tafti, S. Mehdi Hosseini, Ahvand Jalali, Mehran Keivanimehr

引用次数: 1

The Effect of Fuel Emulsion on Fuel Saving in Cement Kilns 燃料乳化液对水泥窑节油的影响

Journal of Solar Energy Research Updates Pub Date : 2020-01-20 DOI: 10.31875/2410-2199.2020.07.5

S. Soulayman, R. El-Khatib

{"title":"The Effect of Fuel Emulsion on Fuel Saving in Cement Kilns","authors":"S. Soulayman, R. El-Khatib","doi":"10.31875/2410-2199.2020.07.5","DOIUrl":"https://doi.org/10.31875/2410-2199.2020.07.5","url":null,"abstract":"In this work, the combustion of heavy oil and its emulsions with water, in the cement kilns, was investigated in experiments on an industrial scale. The performance of the cement rotary kilns, used in Tartous Company for cement and construction materials, was studied when they were employed to be operated with heavy fuel oil (HFO) and with the water phase of emulsified heavy oil containing 8 vol. % water and 92 vol. % heavy fuel oil (HFO). The emulsified water/heavy fuel oil (W/HFO) with 8 vol. % of water content showed no separation and contained the smallest and most homogeneous water-in-HFO (W/HFO) droplets after stability tests. Four rotary kilns have been operated for 4 months with a regular heavy fuel oil HFO and W0.08/HFO0.092. It has been found that the micro-explosion, observed in W0.08/HFO0.092, improved the kiln efficiency and reduced the fuel consumption by 10.31% in the case of normal feeding while the fuel saving increases with decreasing the feeding rate and reaches 12.99 at low feeding rate. The effect of emulsified fuel on the composition of Portland cement clinker that produced in Tartous Company for cement and construction materials using these two types of fuels is investigated. It is found that the influence is practically negligible on the Alite and Ferrite phases of clinker composition while the influence on the other two phases is important.","PeriodicalId":197215,"journal":{"name":"Journal of Solar Energy Research Updates","volume":"196 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131195543","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

Review of the PV Electricity Production Estimate under the Effect of Climatic Disturbances and Sunspots by Using Deep-Learning Tools 基于深度学习的气候扰动和太阳黑子影响下的光伏发电估算综述

Journal of Solar Energy Research Updates Pub Date : 2020-01-20 DOI: 10.31875/2410-2199.2020.07.8

Afef Ben Othman, Ayoub El Ouni, Mongi Besbes

引用次数: 0

Analysis of a Direct Current Compressor for Solar Cooler 太阳能冷却器直流压缩机分析

Journal of Solar Energy Research Updates Pub Date : 2020-01-20 DOI: 10.31875/2410-2199.2020.07.03

Orhan Ekren

{"title":"Analysis of a Direct Current Compressor for Solar Cooler","authors":"Orhan Ekren","doi":"10.31875/2410-2199.2020.07.03","DOIUrl":"https://doi.org/10.31875/2410-2199.2020.07.03","url":null,"abstract":"Refrigeration systems have higher electricity consumption ratio in overall energy consumption especially in household utilization. On the other hand, these systems have an advantage of being powered by renewable energy sources such as solar or solar-wind hybrid systems because of their lower power demand. Since the efficiency improvement of refrigeration systems is crucial for domestic and industrial systems in the present study, solar energy powered compressor for vapour compression refrigeration systems have been investigated. Compressor is the most important part and often the costliest component of any refrigerant system. There are two different options for powering the compressor such as alternative current (AC) and direct current (DC).For that reason, this study focused on thermal analysis of critical component inside the novel DC compressor. Computational Fluid Dynamics (CFD) analysis has been realized to figure out the heat transfer mechanism inside the compressor components and also thermodynamics efficiency. Temperature distribution in the compressor during the operation was presented and the component of the compressor position re-designed with resulted parameter and discussed affects of the volumetric efficiency.Furthermore, in this study, experimental performance analysis of the novel DC type refrigeration compressor implemented in a 50 l refrigerator to show its cooling performance and compare well known DC compressor in the market. Energy usage reduction and operational improvement potential of the solar powered DC compressor via variable speed operation were investigated. The comparison showed that variable speed operation of the novel DC compressor can be much more efficient than constant speed operation.","PeriodicalId":197215,"journal":{"name":"Journal of Solar Energy Research Updates","volume":"351 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116534224","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

Spectral Beam Splitting Technology for Photovoltaic and Concentrating Solar Thermal Hybrid Systems: A Review 光伏聚光太阳能热混合系统的光谱分束技术综述

Journal of Solar Energy Research Updates Pub Date : 2020-01-20 DOI: 10.31875/2410-2199.2020.07.7

Xin Zhang, Dongqiang Lei, Pan Yao, Biao Guo, Zhifeng Wang

引用次数: 0

Graphene for Flexible Photovoltaic Devices 柔性光伏器件用石墨烯

Journal of Solar Energy Research Updates Pub Date : 2019-01-17 DOI: 10.31875/2410-2199.2019.06.2

Kwadwo Mensah-Darkwa, Rita Namoe Tabi, Pawan K. Kahol, Ram K. Gupta

{"title":"Graphene for Flexible Photovoltaic Devices","authors":"Kwadwo Mensah-Darkwa, Rita Namoe Tabi, Pawan K. Kahol, Ram K. Gupta","doi":"10.31875/2410-2199.2019.06.2","DOIUrl":"https://doi.org/10.31875/2410-2199.2019.06.2","url":null,"abstract":"Flexible photovoltaic devices (FPD’s) are emerging as next-generation technology in photovoltaic research. FPD’s have attracted great research attention because of their broad potential applications especially in wearable devices, portable electronics, integrated textiles, unmanned aerial vehicles, transportation, and military etc. The existing technologies have evolved over the years, improving efficiency and performance of photovoltaic devices. However, these technologies mostly rely on rigid electrodes that are brittle, costly and chemically unstable. For FPD’s to become practical, new materials that offer inherent flexibility without compromising on mechanical and optical properties must be the focus. Researchers have made significant advances over the past decade towards developing various aspects of FPD’s to improve its optical transmittance, mechanical stability, chemical stability etc. Graphene is increasingly been recognized as an excellent material for flexible photovoltaic devices because of its unique optical, electrical and mechanical properties. The prospects of introducing an inexpensive and abundant carbon-based material such as graphene in making flexible, low-cost, transparent PV cells cannot be over emphasized. However, the method to synthesize graphene to achieve the best performance is still complicated. This paper presents a brief overview of recent developments made in flexible photovoltaic devices using graphene.","PeriodicalId":197215,"journal":{"name":"Journal of Solar Energy Research Updates","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129714268","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

Inverse Weibull Method Application to wind Speed Modeling in Campo Grande-Ms Brazil 逆威布尔方法在巴西Campo Grande-Ms风速模拟中的应用

Journal of Solar Energy Research Updates Pub Date : 2019-01-17 DOI: 10.31875/2410-2199.2019.06.6

Razika Ihaddadene, Nabila Ihaddadene, Amaury de Souza, Abdelhadi Beghidja

引用次数: 0

Solar Energy in Cuba: Current Situation and Future Development 古巴的太阳能:现状与未来发展

Journal of Solar Energy Research Updates Pub Date : 2019-01-17 DOI: 10.31875/2410-2199.2019.06.1

Jorge Morales Pedraza

{"title":"Solar Energy in Cuba: Current Situation and Future Development","authors":"Jorge Morales Pedraza","doi":"10.31875/2410-2199.2019.06.1","DOIUrl":"https://doi.org/10.31875/2410-2199.2019.06.1","url":null,"abstract":"Cuba, a small island in the Caribbean Sea with a total land area of 109.884 km2 and a population of around 11.423 million, has no significant proved oil, gas and coal reserves. Also use, in a very limited manner, some of the four main renewable energy sources available in the country for electricity production, generating just 50,1 GW/h or 4,04% of the total electricity consumed in 2015 (20.288 GW/h). In 2016, electricity consumption fell to 15.182 GW/h; this means a reduction of 25% in comparison to 2015. In 2016, the participation of renewable energy sources in the energy mix of the country reached 4,65%.\u0000The different renewable energy sources available in the country are hydropower, wind power, solar photovoltaic, and bioenergy. In 2015, out of Cuba’s total 566 MW of renewable energy capacity installed, 83% of the total was in the bioenergy sector. In 2016, the renewable energy capacity installed in the country reached 642 MW.\u0000According to the decision adopted by the Cuban government, the participation of renewable energy sources in the energy mix of the country should reach 24% in 2030, an increase of almost 20% compared to the level reported in 2016. Among the different renewable energy sources available in the country, solar energy is one of the main contributors to the national energy system, and also one of the leading supplier of energy to independent users all over the country.","PeriodicalId":197215,"journal":{"name":"Journal of Solar Energy Research Updates","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128234503","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

Optoelectrical Properties of NiInZnO (NIZO) Thin Films NiInZnO (NIZO)薄膜的光电性能

Journal of Solar Energy Research Updates Pub Date : 2019-01-17 DOI: 10.31875/2410-2199.2019.06.10

K. Mensah-Darkwa, A. Dere, Abdullah G. Al-Sehemi, Ahmed A. Al-Ghamdi, Ram K. Gupta, F. Yakuphanoglu

{"title":"Optoelectrical Properties of NiInZnO (NIZO) Thin Films","authors":"K. Mensah-Darkwa, A. Dere, Abdullah G. Al-Sehemi, Ahmed A. Al-Ghamdi, Ram K. Gupta, F. Yakuphanoglu","doi":"10.31875/2410-2199.2019.06.10","DOIUrl":"https://doi.org/10.31875/2410-2199.2019.06.10","url":null,"abstract":"This report presents the fabrication and characterization of x % Ni - InZnO (NIZO) Schottky diodes. The structural, optical and electrical properties of the fabricate Al/p-Si / x % Ni - InZnO /Au photodiodes were investigated. An average visible transmittance of about 75% - 85% has been obtained in the visible-light to near-infrared wavelength region. The optical bandgap was 3.17 ± 0.02 eV. Current-Voltage measurements were conducted to analyze the photodiode behavior under dark and light illumination. The reverse bias current increases together with increasing light illumination. The observed I-V results confirm the photoconductive and photovoltaic properties of the fabricated diode. There is an exponential relationship between the current and the voltage in the forward bias, confirming the rectification performance of the photodiode. The electrical properties of the fabricated photodiodes were evaluated using Cheung- Cheung and Norde’s methods. The transient photocurrent, capacitance-voltage-frequency and conductance-voltagefrequency plots indicate that the diode is very sensitive to light illumination. We also observe a strong correlation between capacitance and conductance on frequency, this was explained based on the presence of interface states. The obtained results suggest that the Ni-doped InZnO photodiodes can be useful in photovoltaic and optoelectronic applications.","PeriodicalId":197215,"journal":{"name":"Journal of Solar Energy Research Updates","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123843052","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