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http://dx.doi.org/10.12791/KSBEC.2020.29.1.36

Field Survey and Analysis of Natural Ventilation Characteristics of Multi-span Greenhouse with Different Roof Vent  

Park, Min jung (Department of Agricultural Engineering, National Institute of Agricultural Sciences, RDA)
Choi, Duck kyu (Department of Agricultural Engineering, National Institute of Agricultural Sciences, RDA)
Son, Jin kwan (Department of Agricultural Engineering, National Institute of Agricultural Sciences, RDA)
Yoon, Sung-Wook (Department of Agricultural Engineering, National Institute of Agricultural Sciences, RDA)
Kim, Hee tae (Department of Agricultural Engineering, National Institute of Agricultural Sciences, RDA)
Lee, Seung-Kee (Department of Agricultural Engineering, Kongju National University)
Kang, Dong hyeon (Department of Agricultural Engineering, National Institute of Agricultural Sciences, RDA)
Publication Information
Journal of Bio-Environment Control / v.29, no.1, 2020 , pp. 36-42 More about this Journal
Abstract
The objectives of this study were to investigate the standard and roof vent type of multi-span greenhouse and to analyze the characteristics of natural ventilation of multi-span greenhouse with different roof vent using computational fluid dynamics (CFD) code. The vent area proportion of surveyed farms averaged 10%, it was analyzed that the vent design for natural ventilation is insufficient. The results of natural ventilation efficiency of multi-span greenhouse according to roof vent type showed that the temperature of the position in which the crops grew was the lowest in the conical roof vent type and the highest in the half conical roof vent type. For the natural ventilation effect, the conical roof vent type was the best one, but the structural stability should be evaluated in light of wind load.
Keywords
CFD; roof vent type; ventilation rate;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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