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Indepth Study of Numerical Heat Transfer and Fluid Flow for Energy Saving of Greenhouse  

Shin, Mi-Soo (Department of Environmental Engineering, Chungnam National University)
Kim, Hey-Suk (Department of Environmental Engineering, Chungnam National University)
Choi, Jun-Ho (Department of Environmental Engineering, Chungnam National University)
Jang, Dong-Soon (Department of Environmental Engineering, Chungnam National University)
Publication Information
Journal of Korean Society of Environmental Engineers / v.29, no.4, 2007 , pp. 466-471 More about this Journal
Abstract
The purpose of study is to obtain basic but important information for the operation of the greenhouse facility located in the suburb of town. Special emphasis is given on the aspect of energy saving method, which can be easilyapplicable in a practical sense. For this end numerical calculation has been made systematically in order to increase the energy efficiency by the evaluation of the temperature distribution in greenhouse. Major parameters considered are primarily the overall shape of greenhouse together with the various conditions of baffle installion inside greenhouse. Further, the performance of heating system is also carefully compared each other for a number of typical arrangements of heating duct. The performance of the computer program developed in this study is evaluated by the observation of the famous fluid trapping phenomenon occurred in staggered baffle condition in the enclosure of greenhouse. Based on the this study, a number of useful conclusions can be drawn, that is, the installation of baffles are quite effective in energy saving method with a minor modification of facility. Also, it is found that the change of the heating duct system can contribute significantly to the uniform temperature distribution in greenhouse. Further other findings obtained by numerical calculation were not only physically consistent and meaningful but also useful for the determination of optimum condition of practical operation of greenhouse.
Keywords
Greenhouse; Baffle Installation; Energy Saving; Numerical Study;
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