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Experimental Research on Monomial Cooling Measure of Greenhouse in Summer
College of Information and Engineering-Technology, Sichuan Agricultural University, Ya’an, China.
- 1 College of Information and Engineering-Technology, Sichuan Agricultural University, Ya’an, China.
Smart Grid and Renewable Energy·Volume 04 (2013)·Pages 48–52·Published 26 February 2013·DOI10.4236/sgre.2013.41007
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Abstract
This paper describes several main monomial cooling methods of greenhouse in summer, including natural ventilation, mechanical ventilation, wet curtain cooling, external sun-shading etc . , as well as analyzes the change law of the envi ronment on temperature and humidity in greenhouse. The result shows that the four cooling methods stated above make the temperature gradients between internal and external respectively 1.1 ℃ , 0.4 ℃ , -2.6 ℃ an d -1.2 ℃ ,so it is obvious that the cooling effect of wet curtain cooling is the optimum; and the internal and external humidity difference is re spectively: -13 % , 6%, 8% and 1%.
KeywordsGlasshouseCooling MeasureTemperatureHumidity
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