Korean Journal of Environmental Agriculture (한국환경농학회지)
- Volume 15 Issue 2
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- Pages.223-231
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- 1996
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- 1225-3537(pISSN)
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- 2233-4173(eISSN)
Development of Night Cooling System for Greenhouse Using Cool Air and Water from an Abandoned Coal Mine
폐광의 냉기 및 냉수를 이용한 온실의 야냉 시스템 개발
- Kang, Whoa-Seug (Dept. of Agricultural Machinery, Engineering, Kangwon Nat'l Univ.) ;
- Kang, Wie-Soo (Dept. of Agricultural Machinery, Engineering, Kangwon Nat'l Univ.) ;
- Lee, Gwi-Hyun (Dept. of Agricultural Machinery, Engineering, Kangwon Nat'l Univ.) ;
- Oh, Jae-Heun (Dept. of Agricultural Machinery, Engineering, Kangwon Nat'l Univ.) ;
- Kim, Ii-Seop (Dept. of Agricultural Machinery, Engineering, Kangwon Nat'l Univ.) ;
- Yoo, Keun-Chang (Division of Applied Plant Science Kangwon Nat'l Univ.)
- 강화석 (강원대학교 농업기계공학과) ;
- 강위수 (강원대학교 농업기계공학과) ;
- 이귀현 (강원대학교 농업기계공학과) ;
- 오재헌 (강원대학교 농업기계공학과) ;
- 김일섭 (강원대학교 농업기계공학과) ;
- 류근창 (강원대학교 식물응용과학부)
- Published : 1996.06.30
Abstract
This study was to develop the most effective cooling system which is needed to cool greenhouse during summer night for getting up early blooming of strawberry. Various cooling systems were designed and constructed to use cool air and water from an abandoned coal mine. Cooling systems built for this study included an evaporative cooling system with cooling pad, heat exchanger using small or large radiator, and cooling duct for drawing cool air from coal mine. The cooling pad, small or large radiator and cooling duct were individually tested. Also, combined cooling system was tested by operating cooling pad, small radiator, and cooling duct simultaneously. The results in this study showed that individual cooling systems such as cooling pad, small radiator, and cooling duct had about the same effect on cooling greenhouse. The combined cooling system had little better cooling effect than individual cooling system except the large radiator. The most effective cooling system for cooling of greenhouse was obtained by using a large radiator as the heat exchanger. By using a large radiator, temperature in greenhouse was dropped into about
폐광으로부터 유출되는 냉기 또는 냉수를 이용하여 여름 동안 야간에 온실을 냉방시키는데 있어 가장 효율적인 냉각방법을 결정하기 위해 여러 종류의 냉각 장치가 제작 및 냉각 실험되어졌다. 온실을 냉방시키는데 있어 여러 냉각장치의 효율을 비교할 때 독립적으로 소형 radiator, 냉각 pad 및 냉기를 사용한 냉각방법은 거의 비슷한 결과를 나타냈다. 또한 대형 radiator를 제외한 여러 냉각장치를 동시에 가동하였을 때는 독립적으로 이러한 냉각장치를 각각 가동하였을 때 보다 약간 향상된 냉각 효율을 나타냈다. 그러나 대형 radiator를 독립적으로 사용했을 때 온실의 냉각 효율은 다른 냉각 방법에 비하여 상당히 좋았으며, 야간의 외기 온도가
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