온실내 잉여열에너지 회수를 위한 팬코일 유닛시스템의 양액 가온효과
Effect on Nutrient Heating of Fan Coil Unit System for Surplus Heat Recovery in Greenhouse
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This study is nutrient heating effect to apply the surplus heat recovery in greenhouse using fan coil unit. Especially, this study was carried out to utilize a surplus heat in greenhouse. This fan coil unit system was composed of a water tank, a fan coil unit, a circulating pump and a water-water heat exchanger. As the result,Temperature difference duing to fan coil unit in greenhouse showed that air temperature at experimental greenhouse on fan , comparison greenhouse were 28.3℃, 33.9℃, respectively. heat ratio showed that exchanged energy quantity in fan coil unit was 19,900∼28,880kcal/h, respectively. It was found that difference of nutrient temperature due to surplus heat recovery, water tank temperature were 19.2∼21.5℃ and 16.2∼18.3℃, The temperature variation of nutrient temperature was about 3℃ and higher . Economic analysis of fan coil unit system was increased gross income cost by 804,787 won.
Abstract
This study is nutrient heating effect to apply the surplus heat recovery in greenhouse using fan coil unit. Especially, this study was carried out to utilize a surplus heat in greenhouse. This fan coil unit system was composed of a water tank, a fan coil unit, a circulating pump and a water-water heat exchanger. As the result,Temperature difference duing to fan coil unit in greenhouse showed that air temperature at experimental greenhouse on fan , comparison greenhouse were 28.3℃, 33.9℃, respectively. heat ratio showed that exchanged energy quantity in fan coil unit was 19,900∼28,880kcal/h, respectively. It was found that difference of nutrient temperature due to surplus heat recovery, water tank temperature were 19.2∼21.5℃ and 16.2∼18.3℃, The temperature variation of nutrient temperature was about 3℃ and higher . Economic analysis of fan coil unit system was increased gross income cost by 804,787 won.
참고문헌 (4)
- 김영복, "열펌프를 이용한 양액가온 및 냉각시스템 효율분석", 경상대학교 농업자원이용 연구소 논문집 (1993)
- 강금춘, "히트펌프를 이용한 양액베드 냉난방시스템의 가온성능 분석포그노즐을 이용 한 온실냉방시스템 분석", 한국농업기계학회 하 계학술대회논문집 (2001)
- 남상운, "증발냉각시스템의 온실냉방 적용 성 평가", 한국생물환경조절학회 학술발표논문집 (1998)
- 이용범, "지열-히트펌프를 이용한 온실용 냉난방시스템 개발", 박사, pp.2004