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http://dx.doi.org/10.12791/KSBEC.2018.27.1.46

Comparison of Environmental Conditions and Insulation Effect between Air Inflated and Conventional Double Layer Greenhouse  

Jayasekara, Shanika N. (Department of Agricultural Engg. Institute of Agricultural Science & Technology, Kyungpook National Univ.)
Na, Wook H. (Institute of Agricultural Science & Technology, Kyungpook National Univ.)
Owolabi, Abdulhameed B. (Department of Agricultural Engg. Institute of Agricultural Science & Technology, Kyungpook National Univ.)
Lee, Jong W. (Institute of Agricultural Science & Technology, Kyungpook National Univ.)
Rasheed, Adnan (Department of Agricultural Engg. Institute of Agricultural Science & Technology, Kyungpook National Univ.)
Kim, Hyeon T. (Dept. of Bio-Industrial Machinery Eng., Gyeongsang National Univ. (Insti. of Agric. & Life Sci.))
Lee, Hyun W. (Department of Agricultural Engg. Institute of Agricultural Science & Technology, Kyungpook National Univ.)
Publication Information
Journal of Bio-Environment Control / v.27, no.1, 2018 , pp. 46-53 More about this Journal
Abstract
This study was conducted to determine which greenhouse provided good environmental conditions for strawberry production, and performed better at conserving energy. Temperature, RH, VPD, $CO_2$, solar radiation, yield, and fuel consumption were the parameters analyzed. The temperatures of both greenhouses were well controlled in order to provide optimal day and night temperatures for strawberry production. The air inflated double layer greenhouse had higher RH values (more than 90% at night), which led to higher disease occurrence, in comparison to the conventional double layer greenhouse. Furthermore, the air inflated double layer greenhouse had lower VPD values than the conventional double layer greenhouse. Therefore, better RH and VPD were observed in the conventional double layer greenhouse. Higher $CO_2$ concentration was observed in the air inflated double layer greenhouse while the conventional double layer greenhouse ventilated better than the air inflated greenhouse, because of its side ventilators. Moreover, higher solar radiation in the conventional double layer greenhouse resulted in higher yield, in comparison to the air inflated double layer greenhouse. Thus, we can conclude that the conventional double layer greenhouse provided a better environment for crop growth, in comparison to the air inflated double layer greenhouse. Regarding fuel consumption, the air inflated double layer greenhouse had lower fuel consumption than the conventional double layer greenhouse. Therefore, from an energy consumption point of view, we can conclude that the air inflated double layer greenhouse performed better than the conventional double layer greenhouse.
Keywords
fuel consumption; strawberry; vapor pressure deficit; yield;
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Times Cited By KSCI : 1  (Citation Analysis)
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