태양열 실증시스템의 진공관형 태양열 집열기 장기 열성능

This paper presents demonstration study results derived through field testing of a part load solar energized cooling system for the library of a cultural center building located in Gwangju, Korea. First operating demonstration system was set up in Gwangju in 2005. These system comprises the 200㎡ evacuated tubular solar collector, a 6㎡ heat storage tank. In a 2003, daily average of insolation showed about 506\/㎡ the solar collector efficiency was 44%. In a 2007, daily average of insolation showed about 507W/㎡ the solar collector efficiency was 42%. As a result, evacuated tubular solar collector kept the high efficiency for two years.