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http://dx.doi.org/10.5389/KSAE.2019.61.2.085

Analysis of Working Environment and Ventilation Efficiency in Pig House using Computational Fluid Dynamics  

Oh, Byung-Wook (Department of Rural Construction Engineering, Chonbuk National University)
Lee, Seong-Won (Department of Rural Construction Engineering, Chonbuk National University)
Kim, Hyo-Cher (National Institute of Agricultural Sciences)
Seo, Il-Hwan (Department of Rural Construction Engineering, Chonbuk National University)
Publication Information
Journal of The Korean Society of Agricultural Engineers / v.61, no.2, 2019 , pp. 85-95 More about this Journal
Abstract
The internal environment in pig house is closely related to the animal productivity. In addition, it is important to consider a working environment inside the pig house due to high gas and dust concentrations. The poor working environment inside the pig house can cause health problems including respiratory diseases. To analyze the working environment, it is important to evaluate the ventilation efficiency to effectively remove harmful gases and dust. The purpose of this study is to develop a 3D CFD model to analyze the working environment in the pig house. CFD model was validated by comparing air temperature distributions between CFD computed and field measured data. The average air flow rate at the pig height was 40.1 % lower than the working height when incoming air was concentrated on upper layer by the installed ventilation system on the experimental pig house. Using the validated CFD model, the regional ventilation efficiency was computed by the TGD(tracer gas decay) method at the pig and working heights. There was a difference of ventilation efficiency on 14 % between the air stagnated section and the rest sections. Stagnated gas concentration can be effected by animal and human health.
Keywords
CFD; turbulence model; ventilation efficiency; working environment;
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Times Cited By KSCI : 4  (Citation Analysis)
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