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윤용철 ( Yoon Yong Cheol ),서원명 ( Shu Won Myung ),이석건 ( Lee Suk Gun ) 한국농공학회 2001 韓國農工學會誌 : 전원과 자원 Vol.43 No.6
This experiment was carried out to analyze on the cooling and dehumidifying effects of greenhouse by air-to-water heat pump system errploying the air as cooling source Following results were obtained : 1. The coefficients of performance (COP) of heat pump itself and total heat pump system were approximately 2.71~2.88 and 1.99~2.22, respectively. 2. The night-time cooling load of experimental greenhouse was 64.9 MJ/h, and the heat absorbed (cooling load) from heat pump system was 816.3~1.004.6 MJ/day. 3. The dehumidified moisture amount from experimental greenhouse was 7.0~15.0 kg/h. 4. The night time temperature of experimental greenhouse cooled by heat pump system could be maintained 4~6℃ lower that of control greenhouse which was almost equal to outside air temperature