Magazine of the Korean Society of Agricultural Engineers (한국농공학회지)
- Volume 29 Issue 4
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- Pages.117-123
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- 1987
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- 0253-3146(pISSN)
Automatic Insulation System in Greenhouses
온실의 자동단열시스템에 관한 연구
Abstract
This study was conducted to develop an automatic insulation system to reduce the heat loss through the wall of greenhouses during the nighttime in winter. A double covered model vinyl house was constructed, and blowers were used to fill or remove styrene pellets automatically the inside of the double-wall of the double covered vinyl house. The effects of insulation of the double covered vinyl house insulated with the styrene pellets were analyzed by comparing with the single covered vinyl house. The results obtained from this study can be summarized as follows : 1. The optimum thickness of the double-wall of the double covered vinyl house was found to be 5 to 10 cm. 2.When the outside temperature varied in the range of -8.3 to -1.5
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