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The potential for increasing the efficiency of solar cells in hybrid photovoltaic/thermal concentrating systems by using beam splitting 在混合光电/热聚光系统中使用光束分裂提高太阳能电池效率的潜力
Solar & Wind Technology Pub Date : 1990-01-01 DOI: 10.1016/0741-983X(90)90082-D
M.Adel Hamdy, D.E. Osborn
{"title":"The potential for increasing the efficiency of solar cells in hybrid photovoltaic/thermal concentrating systems by using beam splitting","authors":"M.Adel Hamdy,&nbsp;D.E. Osborn","doi":"10.1016/0741-983X(90)90082-D","DOIUrl":"https://doi.org/10.1016/0741-983X(90)90082-D","url":null,"abstract":"<div><p>The potential of spectrally selective beam splitters (SSBS) in separating concentrated solar irradiation into specific regions matched to hybrid photovoltaic/thermal (PV/TH) concentrating systems is examined. Both interference filters and liquid absorption filters are investigated for use as SSBS. The performance benefit of this approach is demonstrated through a simplified calculation method suitable for hand or spreadsheet analysis. Initial performance analysis shows difinite advantages to the use of SSBS in hybrid PV/TH concentrating systems. A silicon solar cell having an efficiency of 11% under 50 suns of solar radiation would have as high as 27% efficiency when an SSBS is used. In addition to the higher PV efficiency, a generous amount of high grade thermal energy is also generated.</p></div>","PeriodicalId":101171,"journal":{"name":"Solar & Wind Technology","volume":"7 2","pages":"Pages 147-153"},"PeriodicalIF":0.0,"publicationDate":"1990-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0741-983X(90)90082-D","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91683174","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: 13
Hour-by-hour simulation of solar H2OLiBr absorption heat transformers in Athens 雅典太阳能H2OLiBr吸收式热变压器的逐小时模拟
Solar & Wind Technology Pub Date : 1990-01-01 DOI: 10.1016/0741-983X(90)90077-F
D. A. Kouremenos, K. A. Antonopoulos, E. Rogdakis
{"title":"Hour-by-hour simulation of solar H2OLiBr absorption heat transformers in Athens","authors":"D. A. Kouremenos, K. A. Antonopoulos, E. Rogdakis","doi":"10.1016/0741-983X(90)90077-F","DOIUrl":"https://doi.org/10.1016/0741-983X(90)90077-F","url":null,"abstract":"","PeriodicalId":101171,"journal":{"name":"Solar & Wind Technology","volume":"12 1","pages":"111-118"},"PeriodicalIF":0.0,"publicationDate":"1990-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80859546","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: 11
Multinode models and dynamic testing methods of solar collectors 太阳能集热器多节点模型及动态测试方法
Solar & Wind Technology Pub Date : 1990-01-01 DOI: 10.1016/0741-983X(90)90040-9
S.E. Frid
{"title":"Multinode models and dynamic testing methods of solar collectors","authors":"S.E. Frid","doi":"10.1016/0741-983X(90)90040-9","DOIUrl":"10.1016/0741-983X(90)90040-9","url":null,"abstract":"<div><p>The present solar collector mathematical models and thermal testing methods, based on the latter, are reviewed. The exact solution of a two-node flat-plate solar collector model is obtained, and three-node model is introduced. The flat-plate solar collector thermal testing procedure is suggested, in which the necessity of collector temperature stabilization is avoided.</p></div>","PeriodicalId":101171,"journal":{"name":"Solar & Wind Technology","volume":"7 6","pages":"Pages 655-661"},"PeriodicalIF":0.0,"publicationDate":"1990-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0741-983X(90)90040-9","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82058248","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: 16
Experimental study on a self-adapting Darrieus—Savonius wind machine 自适应Darrieus-Savonius风机的实验研究
Solar & Wind Technology Pub Date : 1990-01-01 DOI: 10.1016/0741-983X(90)90030-6
Jna. Gavaldà, J. Massons, F. Díaz
{"title":"Experimental study on a self-adapting Darrieus—Savonius wind machine","authors":"Jna. Gavaldà,&nbsp;J. Massons,&nbsp;F. Díaz","doi":"10.1016/0741-983X(90)90030-6","DOIUrl":"10.1016/0741-983X(90)90030-6","url":null,"abstract":"<div><p>In the present paper a study of the starting torque and power coefficient of the Darrieus and Savonius machines have been realized. The results obtained were used to design a Darrieus-Savonius combined machine which is also fully analysed. Finally, a new design of the Darrieus-Savonius combined rotor is proposed and analysed.</p></div>","PeriodicalId":101171,"journal":{"name":"Solar & Wind Technology","volume":"7 4","pages":"Pages 457-461"},"PeriodicalIF":0.0,"publicationDate":"1990-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0741-983X(90)90030-6","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91058266","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: 47
Design and construction of a solar tracking system 太阳能跟踪系统的设计与建造
Solar & Wind Technology Pub Date : 1990-01-01 DOI: 10.1016/0741-983X(90)90072-A
F. Al-Naima, N. A. Yaghobian
{"title":"Design and construction of a solar tracking system","authors":"F. Al-Naima, N. A. Yaghobian","doi":"10.1016/0741-983X(90)90072-A","DOIUrl":"https://doi.org/10.1016/0741-983X(90)90072-A","url":null,"abstract":"","PeriodicalId":101171,"journal":{"name":"Solar & Wind Technology","volume":"34 1","pages":"611-617"},"PeriodicalIF":0.0,"publicationDate":"1990-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76885384","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: 29
Adobe as a thermal regulating material 土坯作为热调节材料
Solar & Wind Technology Pub Date : 1990-01-01 DOI: 10.1016/0741-983X(90)90025-W
M.A.Eben Saleh
{"title":"Adobe as a thermal regulating material","authors":"M.A.Eben Saleh","doi":"10.1016/0741-983X(90)90025-W","DOIUrl":"10.1016/0741-983X(90)90025-W","url":null,"abstract":"<div><p>Adobe as a building material has a distinctive thermal characteristic which differentiates it from other conventional building materials such as cement, clay and insulation materials. Adobe is found to be a thermal regulating and not a conducting or an insulating building material. This distinctive thermal characteristic is determined through a comparative analysis of thermal performance of prototypical models sharing the same form, shape, activities and context; but constructed with different materials. The comparisons are made by utilizing a predefined computer program using transient heat transfer method and thermal response factor technique.</p></div>","PeriodicalId":101171,"journal":{"name":"Solar & Wind Technology","volume":"7 4","pages":"Pages 407-416"},"PeriodicalIF":0.0,"publicationDate":"1990-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0741-983X(90)90025-W","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86070050","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: 19
Distribution of dust particles with wind direction in Baghdad 巴格达地区沙尘颗粒随风向的分布
Solar & Wind Technology Pub Date : 1990-01-01 DOI: 10.1016/0741-983X(90)90035-Z
A. A. Al-Baali, S. Al-Juboory, N. Al-Hamdani, M. Al-Riahi
{"title":"Distribution of dust particles with wind direction in Baghdad","authors":"A. A. Al-Baali, S. Al-Juboory, N. Al-Hamdani, M. Al-Riahi","doi":"10.1016/0741-983X(90)90035-Z","DOIUrl":"https://doi.org/10.1016/0741-983X(90)90035-Z","url":null,"abstract":"","PeriodicalId":101171,"journal":{"name":"Solar & Wind Technology","volume":"5 1","pages":"495-496"},"PeriodicalIF":0.0,"publicationDate":"1990-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82990941","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 survey of wind energy potential in Nigeria 尼日利亚风能潜力调查
Solar & Wind Technology Pub Date : 1990-01-01 DOI: 10.1016/0741-983X(90)90083-E
J.O. Ojosu, R.I. Salawu
{"title":"A survey of wind energy potential in Nigeria","authors":"J.O. Ojosu,&nbsp;R.I. Salawu","doi":"10.1016/0741-983X(90)90083-E","DOIUrl":"https://doi.org/10.1016/0741-983X(90)90083-E","url":null,"abstract":"<div><p>In this presentation, wind speed, direction and frequency distribution data obtained from meteorological data are used to analyse wind energy characteristics and availability in Nigeria. The result presents the mean wind energy density estimates and the potential for application in the country. The results show that wind energy conversion systems can be used to provide energy for the rural communities of Nigeria and that it can be used in the effort to check rural to urban migration.</p></div>","PeriodicalId":101171,"journal":{"name":"Solar & Wind Technology","volume":"7 2","pages":"Pages 155-167"},"PeriodicalIF":0.0,"publicationDate":"1990-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0741-983X(90)90083-E","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91637426","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: 67
Digital parameter-adaptive control for a solar concentrator 太阳能聚光器数字参数自适应控制
Solar & Wind Technology Pub Date : 1990-01-01 DOI: 10.1016/0741-983X(90)90075-D
G. Stavrakakis, G. Kapsiotis, M. Santamouris
{"title":"Digital parameter-adaptive control for a solar concentrator","authors":"G. Stavrakakis,&nbsp;G. Kapsiotis,&nbsp;M. Santamouris","doi":"10.1016/0741-983X(90)90075-D","DOIUrl":"https://doi.org/10.1016/0741-983X(90)90075-D","url":null,"abstract":"<div><p>The discrete-time control algorithm of a solar concentrator unit is presented. This system is required to supply thermal energy so that the outlet working fluid temperature could be kept constant. A simple linear finite-difference approximation of the process dynamics provides the basis for the controller design. No initial knowledge of the values of the approximate process model parameters is necessary as the on-line identification procedure is incorporated in the contrll algorithm. Control design and Recursive Estimation Methods has been combined toobtain Self-Tuning Regulators. The results of computer simulation indicate that a very satisfactory performance of the solar collector can be achieved using self-tuning regulators. Moreover the proposed regulators are suitable for microprocessor-based system implementation.</p></div>","PeriodicalId":101171,"journal":{"name":"Solar & Wind Technology","volume":"7 2","pages":"Pages 97-105"},"PeriodicalIF":0.0,"publicationDate":"1990-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0741-983X(90)90075-D","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91637429","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
Estimation of hourly insolation in Guadeloupe 瓜德罗普岛每小时日晒的估计
Solar & Wind Technology Pub Date : 1990-01-01 DOI: 10.1016/0741-983X(90)90060-F
T. Feuillard, J.-M. Abillon
{"title":"Estimation of hourly insolation in Guadeloupe","authors":"T. Feuillard,&nbsp;J.-M. Abillon","doi":"10.1016/0741-983X(90)90060-F","DOIUrl":"https://doi.org/10.1016/0741-983X(90)90060-F","url":null,"abstract":"<div><p>Hourly global and diffuse insolation data for Guadeloupe have been compared with different models. Liu-Jordan's model for the global component and Collares-Pereira's model for the diffuse component give the best fit to our data. This result to emphasize the universal aspect of these modelizations.</p></div>","PeriodicalId":101171,"journal":{"name":"Solar & Wind Technology","volume":"7 5","pages":"Pages 541-543"},"PeriodicalIF":0.0,"publicationDate":"1990-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0741-983X(90)90060-F","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91737224","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
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