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RISS 인기검색어
- 검색키워드
- 저자 : Y.H. Kim(김이현) (검색결과 3 건)
- 무료
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수냉각에 의한 실리콘계열 Photovoltaic 모듈의 출력향상 장기 실증실험
유상필(S. Phil. Yu),김이현(E. H. Kim),정성대(S. D. Jeong),서용석(Y. S. Seo),정남조(N. J. Jeong) 대한기계학회 2011 대한기계학회 춘추학술대회 Vol.2011 No.6
The module of solar photovoltaic power generator of crystalline silicon shows about a 0.5% decrease in output when the temperature increases 1℃ because of the change of electromotive force by temperature. For this reason, as the amount of the concentrated light increases, the efficiency of development tends to decline since the temperature of the module also increases. Therefore, the profits of commercial solar photo voltaic power generator plants have been declining. As of cooling systems, water cooler is excellent at the effect of heat transfer, and is a suitable method for increasing the amount of the concentrated light on the surface of the module. We have been experimenting the effect of the increases in the output about the module of solar photovoltaic power generator in crystalline silicon by using the cooling systems over the years. As a result of the experiment, we measured a cooling effect by seasons and the effect of the increases in output quantitatively. In the event of the country, we could get the effect of 10%~15% output and is considered to get the effect of 8%~12% output according to the net profit, except for operational costs.
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실리콘계열 태양광발전 모듈 수냉각에 의한 출력향상 실증실험
유상필(S. Phil. Yu),김이현(E. H. Kim),정성대(S. D. Jeong),정찬희(C. H. Jeong),김근(K. Kim),심영우(Y. W. Shim),서용석(Y. S. Seo),정남조(N. J. Jeong) 한국태양에너지학회 2010 한국태양에너지학회 학술대회논문집 Vol.2010 No.11
The module of solar photovoltaic power generator of crystalline silicon shows about a 0.5% decrease in output when the temperature increases 1℃ because of the change of electromotive force by temperature. For this reason, as the amount of the concentrated light increases, the efficiency of development tends to decline since the temperature of the module also increases. Therefore, the profits of commercial solar photovoltaic power generator plants have been declining. As of cooling systems, water cooler is excellent at the effect of heat transfer, and is a suitable method for increasing the amount of the concentrated light on the surface of the module. We have been experimenting the effect of the increases in the output about the module of solar photovoltaic power generator in crystalline silicon by using the cooling systems over the years. As a result of the experiment, we measured a cooling effect by seasons and the effect of the increases in output quantitatively. In the event of the country, we could get the effect of 10%~15% output and is considered to get the effect of 8%~12% output according to the net profit, except for operational costs.
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The Study on the Jet Nozzle Specified for Solar PV Power Enhancement
S.D. Jeong(정성대),Hu Qing Ping(호청평),K.Kim(김근),Y.H. Kim(김이현),Y.W. Sim(심영우),S.Phil. Yu(유상필) 대한기계학회 2011 대한기계학회 춘추학술대회 Vol.2011 No.10
Recently, solar power plants widely and quickly rise and expand. Because of the cost of solar cell, the crystalline silicon solar cell is the most widely used type. However, the conversion efficiency of solar cell is still very low. Furthermore, the conversion efficiency of solar cell will be decreased while the temperature of solar cell is going up. Especially, the conversion efficiency of solar cell will be decreased 20%-25% in summer. And the pollutant like as dust, pollen, snow etc. inevitably cover on the surface of solar panel in solar power plant which block the part of incident light absorbed by solar panel. In this article, a nozzle device called HJS(Hydraulic Jet Scanner) was developed to improve conversion efficiency of solar cell by cooling and cleaning solar panel for solar power plants. Cooling performance and cleaning performance of HJS(Hydraulic Jet Scanner) were tested. The improved efficient rate under cooling, the improved efficient rate under cleaning and the improved efficient rate under cooling and cleaning by HJS(Hydraulic Jet Scanner), these three data were measured and recorded. In order to prove that HJS(Hydraulic Jet Scanner) have better performance for improving efficiency of solar cell, another nozzle device called Rotor Sprinkler was tested as a comparison other. The results of experiments prove HJS(Hydraulic Jet Scanner) has cooling and cleaning performance And HJS(Hydraulic Jet Scanner) can improve conversion efficiency of solar cell by cooling and cleaning solar panel.
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