Proceedings of the Korean Society for Bio-Environment Control Conference (한국생물환경조절학회:학술대회논문집)
- 1999.11a
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- Pages.122-125
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- 1999
Current Status in U.S. Greenhouse Production and Newly Designed Naturally Ventilated Greenhouse in America
- Lee, In-Bok (Department of Land Improvement, National Research Institute of Agricultural Engineering) ;
- Sase, Sadanori (Department of Land Improvement, National Research Institute of Agricultural Engineerin) ;
- Short, Ted H. (Department of Food, Agricultural, and Biological Engineering, The Ohio State University/Ohio Agricultural Research and Development Center)
- Published : 1999.11.01
Abstract
Ventilation is the primary method of controlling greenhouse air temperature, relative humidity, and carbon dioxide concentration. Two types of ventilation systems that are normally used are natural and fan. While fan ventilation is typically achieved with one wall as an inlet and the opposite wall as a fan outlet, natural ventilation is generally achieved by air exchanges that occur through multiple controlled openings due to natural pressure variations inside and outside the greenhouse. (omitted)
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