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Effects of Distance and Difference of Ground Level Between Two Natural Ventilating Pig Houses on Their Ventilation  

Lee, Seung-Joo (Dept. of Biosystems Machinery Engineering, Chungnam Nat'l Univ.)
Chang, Dong-Il (Dept. of Biosystems Machinery Engineering, Chungnam Nat'l Univ.)
Lim, Yeong-Il (Dept. of Biosystems Machinery Engineering, Chungnam Nat'l Univ.)
Jo, Yeong-Gi (Dept. of Biosystems Machinery Engineering, Chungnam Nat'l Univ.)
Shin, Won-Ho (Dept. of Animal Sci., (Insti. of Agric. & Life Sci.), Gyeongsang Nat'l Univ.)
Gutierrez, Winson M. (Dept. of Animal Sci., (Insti. of Agric. & Life Sci.), Gyeongsang Nat'l Univ.)
Chang, Hong-Hee (Dept. of Animal Sci., (Insti. of Agric. & Life Sci.), Gyeongsang Nat'l Univ.)
Publication Information
Journal of agriculture & life science / v.44, no.5, 2010 , pp. 109-116 More about this Journal
Abstract
This study was carried out to evaluate effects of distance and difference of ground level between two natural ventilating pig houses on their ventilation by using simulation. Distance between two pig houses was 6 or 12 m. Difference of ground level between two pig houses was 0 or 2 m. Mean air velocities in summer and winter were designated to 1.3 and 1.1 m/s. Under the conditions of summer, air velocities in all the pig houses in south were about 0.75 m/s regardless of distance and difference of ground level between two pig houses and air velocities in the second pig houses in north were about 0.75 m/s at difference of ground level of 0m and about 0.0 m/s at difference of ground level of 2 m, respectively. Under the conditions of winter, air velocities in all the pig houses in south were about 0.15 m/s regardless of distance and difference of ground level between two pig houses and air velocities of the second pig houses in north were about 0.0 m/s at distance of 6 m and about 0.15 m/s at distance of 12 m, respectively. Therefore, it is suggested that the optimum distance and difference of ground level between two natural ventilating pig houses might be 12 m and 0 m.
Keywords
Natural ventilating pig house; Distance between two pig houses; Difference of ground level; Heat stress; Disease;
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  • Reference
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