표면냉각을 통한 PV 모듈의 출력 향상에 관한 연구
Improving the power of PV module by a surface cooling system
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초록
This study was conducted to improve the power of PV module using a surface cooling system. One of the unique characteristics of PV module is power drop as a module surface temperature increases due to the characteristics of crystalline silicon used in a solar cell. To overcome the output power reduction by temperature effect, module surface cooling using water circulation was performed. By cooling effect, module surface temperature drops maximally 20.3℃ predicting more than 10% power enhancement. Maximum deviation of voltage and current between a control and cooled module differed by 5.1V and 0.9A respectively. The maximum power enhancement by cooling system was 12.4% compared with a control module. In addition, cooling system can wash the module surface by water circulation so that extra power up of PV module can be achieved by removing particles on the surface which interfere solar radiation on the cells. Cooling system, besides, can reduce the maintenance cost and prevent accidents as a safety precaution while cleaning works. This system can be applied to the existing photovoltaic power generation facilities without any difficulties as well.
Abstract
This study was conducted to improve the power of PV module using a surface cooling system. One of the unique characteristics of PV module is power drop as a module surface temperature increases due to the characteristics of crystalline silicon used in a solar cell. To overcome the output power reduction by temperature effect, module surface cooling using water circulation was performed. By cooling effect, module surface temperature drops maximally 20.3℃ predicting more than 10% power enhancement. Maximum deviation of voltage and current between a control and cooled module differed by 5.1V and 0.9A respectively. The maximum power enhancement by cooling system was 12.4% compared with a control module. In addition, cooling system can wash the module surface by water circulation so that extra power up of PV module can be achieved by removing particles on the surface which interfere solar radiation on the cells. Cooling system, besides, can reduce the maintenance cost and prevent accidents as a safety precaution while cleaning works. This system can be applied to the existing photovoltaic power generation facilities without any difficulties as well.
참고문헌 (4)
- 서인선, "태양전지" (2002), 한국과학기술정보연구원
- Al-Baali, A. A., "Improving the power of a solar panel by cooling and light concentrating", Solar & Wind Technology, 3(4), pp.241~245 (1986)
- 유상필, "셀 표면의 충돌제트를 이용한 태양광발전 시스템 효율향상에 관한 연구", 한국태양에너지학회 춘계학술발표대회 논문집, 29(1), pp.241~244 (2009)
- Kim, D. H., "Simulation of agricultural drainage water concentration for the recovery of salts", pp.2006