Article Info 제28권 3호 강원 농업생명환경연구 Vol.28, No.3, pp.66-72, 2016
Title Cooling Analysis Model Development and Verification using a Heat Exchanger with Circular Tubes and Continuous Plate Fins in a Greenhouse
Author Cho, L. H.1 , S. H. LEE1 , S. Y. Park1 , J. M. Kim1 , S. Y. Lee1 , C. G. Lee1 , S. Y. Joo1 , K. C. Oh1 and D. H. Kim1,2*
Institutions 1Department of Biosystem Engineering, Kangwon National University, Chuncheon 24341, Korea
2Agricultural and Life Sciences Research Institude, Kangwon National University, Chuncheon 24341, Korea 
Abstract In summer, cooling is needed because excessive temperature inside greenhouse increase causing a negative influence on
the growth of crops in Korea. In this study, mathematical model predicting the temperature change in the greenhouse
was developed through numerical analysis concerning solar radiation and heat exchange between inflow air and heat
exchanger and then verification of the simulation was performed with the experimental data. For the cooling
experiment, a pilot scale greenhouse was built, a duct and a cooling fin and a fan were installed for inflow of the air
for reducing temperature. Numerical analysis for predicting temperature change in the greenhouse was done by
simulation using Matlab (R2016a, The Mathworks INC, USA). When the experimental results was compared with the
numerical simulation values, R-squared and RMSE (root mean square error) were showed 0.9502, 0.7081, respectively.
It was showed that predicting temperature change inside the greenhouse was good agreement with the experimental
result.
Keyword Cooling experiment, Greenhouse, Numerical analysis, Predicting model.
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