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http://dx.doi.org/10.3795/KSME-B.2013.37.11.971

Long-Term Experiments of Cooling/Cleaning on Surface of 200-kW PV Power Array  

Han, Jun Sun (Research Center of HILEBEN CO., LTD.)
Jeong, Seong Dae (Research Center of HILEBEN CO., LTD.)
Yu, Sang Phil (Research Center of HILEBEN CO., LTD.)
Lee, Seong Su (SK E&S R&D Department)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.37, no.11, 2013 , pp. 971-975 More about this Journal
Abstract
In general, the solar photovoltaic power increases with higher solar insolation. However, the solar cell generation efficiency reduces because the solar cell surface is heated by solar insolation. According to advanced research, with a $1^{\circ}C$ increase in the solar cell surface temperature, the generation efficiency decreases by ~0.5%. To solve this problem, we conducted experiments in which we attempted to reduce the solar cell surface temperature using a water jet spray. In this study, we found the long-term experimental results of increases in solar power generation. The experimental results show a comparison of the site with and without cooling and cleaning equipment being installed. The results of the long-term experiments show that solar photovoltaic power generation is increased by at least 13% up to 19% with cooling and cleaning.
Keywords
Cooling; Cleaning; Power Efficiency; Photovoltaic Module; Long-Term Experiments; Capacity Factor;
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  • Reference
1 Emerging PV industry, SAMSUNG Economic Research, 2008.
2 Yu, S. P., Kim, E. H., Jeong, S.D., Seo, Y.S. and Jeong, N.J., 2011 The Korean Solar Energy Society Long-Term Experimental Study on the Improving PV Power By the Water Cooling for Si-Solar Modules.
3 Bione, J., Vilela, O.C. and Fraidenraich, N., 2004, "Comparison of the Performance of PV Water Pumping System Driven by Fixed, Tracking and VTrough Generators," Solar Energy 76 pp. 703-711.   DOI   ScienceOn
4 Yun, G. Y., McEvoy, M. and Steemers, K., 2007, "Design and Overall Energy Performance of a Ventilated Photovoltaic Facade," Solar Energy 81 pp. 383-394.   DOI   ScienceOn
5 Royne, A., Dey,C. J. and Mills, D. R., 2005, "Cooling of Photovoltaic Cells Under Concentrated Illumination: a Critical Review," Solar Energy Materials & Solar cells 86 pp. 451-483.   DOI   ScienceOn
6 Skoplaki, E. and Palyvos, J.A., 2009, "On the Temperature Dependence of Photovoltaic Module Electrical Performance:A Review of Efficiency/Power Correlations," Solar Energy 83 pp. 614-624.   DOI   ScienceOn
7 Tonui, J.K. and Tripanagnostopoulos, Y., 2008, "Performance Improvement of PV/T Solar Collectors with Natural Air Flow Operation," Solar Energy 82 pp. 1-12.   DOI   ScienceOn
8 Stamenic, L., Smiley, E. and Karim, K., 2004, "Low Light Conditions Modelling for Building Integrated Photovoltaic (BIPV) Systems," Solar Energy 77 pp. 37-45.   DOI   ScienceOn
9 Tonui, J.K. and Tripanagnostopoulos, Y., 2007, "Air-Cooled PV/T Solar Collectors with Low Cost Performance Improvements," Solar Energy 81 pp. 498-511.   DOI   ScienceOn
10 Coventry, J. S., 2005, "Performance of a Concentrating Photovoltaic/Thermal Solar Collector," Solar Energy 78 pp. 211-222.   DOI   ScienceOn
11 Odeh, S. and Behnia, M., 2009, "Improving Photovoltaic Module Efficiency Using Water Cooling," Heat Transfer Engineering 30(6) pp. 499-505.   DOI   ScienceOn
12 Tripanagnostopoulos, Y., Nousia, T.H., Souliotis, M. and Yianoulis, P., 2002, Hybrid photovoltaic/thermal Solar Systems," Solar Energy 72(3) pp. 217-234.   DOI   ScienceOn
13 Brinkworth, B. J., Cross, B. M., Marshall, R. H. and Yang, H., 1997, "Thermal Regulation of Photovoltaic Cladding," Solar Energy 61(3) pp. 169-178.   DOI   ScienceOn
14 Jones, A. D. and Underwood, C. P., 2001, "A Thermal Model for Photovoltaic Systems," Solar Energy 70(4) pp. 349-359.   DOI   ScienceOn
15 Krauter, S., 2004, Increased Electrical Yield via Water Flow over the Front of Photovoltaic Panels," Solar Energy Materials & Solar Cells 82 pp. 131-137.   DOI   ScienceOn
16 Skoplaki, E., Palyvos, J.A., 2009, "On the Temperature Dependence of Photovoltaic Module Electrical Performance:A Review of Efficiency/Power Correlations," Solar Energy, 83 pp. 614-624.   DOI   ScienceOn
17 Fahmy, E. A. S. F. H., Abd-el Aziz, M. M., Mahmoudi, P. Z. A., "Increased Efficiency in the Conversion of Solar Energy to Electric Power," Energy Sources 21 pp. 367-377.