교육시설에 적용 가능한 태양열 흡수식 냉각 시스템

초록

Performance of a small-capacity solar absorption cooling system was investigated experimentally. Ten sets of evacuative-tube solar-heat collectors and a 5 kW single-stage absorption cooler were combined to produce a hybrid cooling system. The performance of the cooling system was measured using a fan-coil unit installed in a small plastic storage. It was found from the test on a sunny day of May that when the temperature of the hot water supplied from the solar collectors to the generator of the absorption cooler reached 60 ℃, the absorption cooler started cooling and the cold water temperature measured from the fan-coil unit reached 18℃. The COP, which is defined as the ratio of the cooling power to the total electrical power input was higher than 1.0.

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