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Improvement of Conversion Efficiency through Water-cooled Equipment in Photovoltaic System

2013; Taylor & Francis; Volume: 3; Issue: 1 Linguagem: Inglês

10.5370/jicee.2013.3.1.097

2234-8972

Masayuki Fujii, Hidenobu Yanagihara, S. Mitsumoto, Syokichi Kikugawa, T. Tokoro, Masumi Fukuma,

Photovoltaic System Optimization Techniques

AbstractIn general, polycrystalline silicon is used as the material of solar module for a general photovoltaic power system. In the summer, the temperature of solar module remains over 60 degrees C for a long time in daytime. It is known that the conversion efficiency of the solar module remarkably drops because of the temperature rise. It is possible to keep the conversion efficiency high by water-cooled equipment in photovoltaic power system. Furthermore, the cooling water can store heat energy from the solar module, so that a large amount of hot water can be produced. The results show that the water-cooled equipment has been effective in photovoltaic power system for a year.Keywords: Solar modulePhotovoltaic power systemConversion efficiencyWater-cooled equipment Additional informationNotes on contributorsMasayuki FujiiMasayuki Fujii received Doctor of Engineering degree from Toyohashi University of Technology, Japan in 2001. Currently, he is an Associate professor at Oshima College of Maritime Technology, Japan. His main research interests are evaluation of insulation material and use of renewable energy.Hidenobu YanagiharaHidenobu Yanagihara graduated from Oshima College of Maritime technology, Japan in 2010. He studied renewable energy when he was in the college. Currently, he belongs to The Japan Atomic Power Company.Shinichi MitsumotoShinichi Mitsumoto received Doctor of Engineering degree from Toyohashi University of Technology, Japan in 1999. Currently, he is an Associate professor at Toyota National College of Technology, Japan. His research interests are space charge and electrical conduction of insulating materials.Syokichi KikugawaSyokichi Kikugawa graduated from Ube National College of Technology, Japan in 2001. Currently, he belongs to Ube National College of Technology, Japan. His research interests are effect of light emitting diode and ozone on the growth of plants.Tetsuro TokoroTetsuro Tokoro received a Ph.D. from Toyohashi University of Technology, Japan in March 1991. Currently, he is a Professor at Gifu National College of Technology, Japan. His research interests are high-field AC properties of dielectric materials.Masumi FukumaMasumi Fukuma received B. E. and M. E. degree in Department of Electrical and Electronic Engineering in Toyohashi University of Technology, Japan in 1983 and 1985, respectively. He belonged to the Optical Fiber Division in Sumitomo Electric Industry from 1985 to 1992. He received Doctor's degree from Toyohashi University of Technology, Japan in 1997. He became lecturer form 1992 in Department of Electrical Engineering of Matsue College of Technology in Shimane, Japan, where he is currently professor. His main research interests are space charge measurement techniques in dielectrics and electric double layer capacitors.