Numerically study on a new hybrid photovoltaic thermal (PVT) collectors with natural circulation
Traditional design of Hybrid photovoltaic thermal (PV/T) system has the solar cells fixed on the top of the absorber. A new PV/T system in which the solar cells are pasted on the bottom of the glass cover is suggested with the aim of realizing higher electricity output considering the lower temperat...
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| Veröffentlicht in: | Applied solar energy 2017-10, Vol.53 (4), p.316-321 |
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| creator | Guo, Jianyu Zheng, Lixian |
| description | Traditional design of Hybrid photovoltaic thermal (PV/T) system has the solar cells fixed on the top of the absorber. A new PV/T system in which the solar cells are pasted on the bottom of the glass cover is suggested with the aim of realizing higher electricity output considering the lower temperature of glass cover compared with that of absorber. A numerical analysis model is set up to compare the performances of the traditional PV/T and the new PV/T in this study. It is found that compared to the traditional PV/T, the new PV/T shows higher daily electric efficiency. But this superiority is not as apparent as expected. The key point to increase the daily electric efficiency of a PV/T lies in increasing the solar energy transfer efficiency of the solar cell. The total energy gain of the new PV/T is about 7% lower than that of the traditional PV/T because of smaller mass rate and more energy loss from glass cover with higher temperature. |
| doi_str_mv | 10.3103/S0003701X17040077 |
| format | Article |
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A new PV/T system in which the solar cells are pasted on the bottom of the glass cover is suggested with the aim of realizing higher electricity output considering the lower temperature of glass cover compared with that of absorber. A numerical analysis model is set up to compare the performances of the traditional PV/T and the new PV/T in this study. It is found that compared to the traditional PV/T, the new PV/T shows higher daily electric efficiency. But this superiority is not as apparent as expected. The key point to increase the daily electric efficiency of a PV/T lies in increasing the solar energy transfer efficiency of the solar cell. The total energy gain of the new PV/T is about 7% lower than that of the traditional PV/T because of smaller mass rate and more energy loss from glass cover with higher temperature.</description><identifier>ISSN: 0003-701X</identifier><identifier>ISSN: 1934-9424</identifier><identifier>EISSN: 1934-9424</identifier><identifier>DOI: 10.3103/S0003701X17040077</identifier><language>eng</language><publisher>Moscow: Pleiades Publishing</publisher><subject>Absorbers ; Accumulators ; Efficiency ; Electrical Machines and Networks ; Energy loss ; ENERGY LOSSES ; Energy transfer ; Engineering ; High temperature ; Low temperature ; Mathematical models ; NATURAL CONVECTION ; NUMERICAL ANALYSIS ; Photovoltaic cells ; PHOTOVOLTAIC EFFECT ; Photovoltaics ; Power Electronics ; SOLAR CELLS ; SOLAR ENERGY ; Solar Power Plants and Their Application</subject><ispartof>Applied solar energy, 2017-10, Vol.53 (4), p.316-321</ispartof><rights>Allerton Press, Inc. 2017</rights><rights>Applied Solar Energy is a copyright of Springer, (2017). 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Sol. Energy</addtitle><description>Traditional design of Hybrid photovoltaic thermal (PV/T) system has the solar cells fixed on the top of the absorber. A new PV/T system in which the solar cells are pasted on the bottom of the glass cover is suggested with the aim of realizing higher electricity output considering the lower temperature of glass cover compared with that of absorber. A numerical analysis model is set up to compare the performances of the traditional PV/T and the new PV/T in this study. It is found that compared to the traditional PV/T, the new PV/T shows higher daily electric efficiency. But this superiority is not as apparent as expected. The key point to increase the daily electric efficiency of a PV/T lies in increasing the solar energy transfer efficiency of the solar cell. The total energy gain of the new PV/T is about 7% lower than that of the traditional PV/T because of smaller mass rate and more energy loss from glass cover with higher temperature.</description><subject>Absorbers</subject><subject>Accumulators</subject><subject>Efficiency</subject><subject>Electrical Machines and Networks</subject><subject>Energy loss</subject><subject>ENERGY LOSSES</subject><subject>Energy transfer</subject><subject>Engineering</subject><subject>High temperature</subject><subject>Low temperature</subject><subject>Mathematical models</subject><subject>NATURAL CONVECTION</subject><subject>NUMERICAL ANALYSIS</subject><subject>Photovoltaic cells</subject><subject>PHOTOVOLTAIC EFFECT</subject><subject>Photovoltaics</subject><subject>Power Electronics</subject><subject>SOLAR CELLS</subject><subject>SOLAR ENERGY</subject><subject>Solar Power Plants and Their Application</subject><issn>0003-701X</issn><issn>1934-9424</issn><issn>1934-9424</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><recordid>eNp1kF9LwzAUxYMoOKcfwLeAL_pQvUm6JnmU4T8YKjjFt5qmqc3ompmkjn57OyYoiE-Xy_mdw-EgdEzgnBFgF08AwDiQV8IhBeB8B42IZGkiU5ruotFGTjb6PjoIYTF8QAUZobf7bmm81appehxiV_bYtVjh1qxx3RfelnhVu-g-XROV1TjWxi9Vg08fX-ZnWLumMTo6H_Daxhq3KnZ-ULX1umtUtK49RHuVaoI5-r5j9Hx9NZ_eJrOHm7vp5SzRVAqeSAIyZYJKzrN0UhVKwCQDTRRUUJaCFIaaomSTQhSSSyloZgiBtAQuMiMzYGN0ss11Ido8aBuNrrVr26FfTimXbFjmh1p599GZEPOF63w7FMuJlIylGRF8oMiW0t6F4E2Vr7xdKt_nBPLN3PmfuQcP3XrCwLbvxv9K_tf0BXiOgDM</recordid><startdate>20171001</startdate><enddate>20171001</enddate><creator>Guo, Jianyu</creator><creator>Zheng, Lixian</creator><general>Pleiades Publishing</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7SP</scope><scope>7ST</scope><scope>7TB</scope><scope>7WY</scope><scope>7WZ</scope><scope>7XB</scope><scope>87Z</scope><scope>88I</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>8FK</scope><scope>8FL</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>ARAPS</scope><scope>ATCPS</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BEZIV</scope><scope>BGLVJ</scope><scope>BHPHI</scope><scope>BKSAR</scope><scope>C1K</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>FR3</scope><scope>FRNLG</scope><scope>F~G</scope><scope>GNUQQ</scope><scope>HCIFZ</scope><scope>K60</scope><scope>K6~</scope><scope>L.-</scope><scope>L7M</scope><scope>M0C</scope><scope>M2P</scope><scope>P5Z</scope><scope>P62</scope><scope>PATMY</scope><scope>PCBAR</scope><scope>PQBIZ</scope><scope>PQBZA</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PYCSY</scope><scope>PYYUZ</scope><scope>Q9U</scope><scope>SOI</scope><scope>OTOTI</scope></search><sort><creationdate>20171001</creationdate><title>Numerically study on a new hybrid photovoltaic thermal (PVT) collectors with natural circulation</title><author>Guo, Jianyu ; 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Sol. Energy</stitle><date>2017-10-01</date><risdate>2017</risdate><volume>53</volume><issue>4</issue><spage>316</spage><epage>321</epage><pages>316-321</pages><issn>0003-701X</issn><issn>1934-9424</issn><eissn>1934-9424</eissn><abstract>Traditional design of Hybrid photovoltaic thermal (PV/T) system has the solar cells fixed on the top of the absorber. A new PV/T system in which the solar cells are pasted on the bottom of the glass cover is suggested with the aim of realizing higher electricity output considering the lower temperature of glass cover compared with that of absorber. A numerical analysis model is set up to compare the performances of the traditional PV/T and the new PV/T in this study. It is found that compared to the traditional PV/T, the new PV/T shows higher daily electric efficiency. But this superiority is not as apparent as expected. The key point to increase the daily electric efficiency of a PV/T lies in increasing the solar energy transfer efficiency of the solar cell. The total energy gain of the new PV/T is about 7% lower than that of the traditional PV/T because of smaller mass rate and more energy loss from glass cover with higher temperature.</abstract><cop>Moscow</cop><pub>Pleiades Publishing</pub><doi>10.3103/S0003701X17040077</doi><tpages>6</tpages></addata></record> |
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| subjects | Absorbers Accumulators Efficiency Electrical Machines and Networks Energy loss ENERGY LOSSES Energy transfer Engineering High temperature Low temperature Mathematical models NATURAL CONVECTION NUMERICAL ANALYSIS Photovoltaic cells PHOTOVOLTAIC EFFECT Photovoltaics Power Electronics SOLAR CELLS SOLAR ENERGY Solar Power Plants and Their Application |
| title | Numerically study on a new hybrid photovoltaic thermal (PVT) collectors with natural circulation |
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