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http://dx.doi.org/10.5307/JBE.2010.35.5.350

Study on Optimum Installation of Fan in Standard Hanwoo Loose Barn  

Lee, Seung-Joo (Division of Bioresources Engineering, Chungnam National University)
Chang, Dong-Il (Division of Bioresources Engineering, Chungnam National University)
Choi, Yoon-Hyuck (Department of Animal Science, Gyeongsang National University)
Yang, Jae-Woong (Department of Animal Science, Gyeongsang National University)
Min, Byeong-Joo (Department of Animal Science, Gyeongsang National University)
Gutierrez, Winson M. (Department of Animal Science, Gyeongsang National University)
Chang, Hong-Hee (Department of Animal Science, Gyeongsang National University)
Publication Information
Journal of Biosystems Engineering / v.35, no.5, 2010 , pp. 350-356 More about this Journal
Abstract
The fans installed in standard Hanwoo loose barns (room size : 10 m (width) $\times$ 5 m (length)) are frequently used to reduce Hanwoo's heat stress during hot weather and to dry the wet floor. However, the most effective method of installing fans has not been suggested yet. Therefore, this study was carried out to evaluate two methods of installing fans under the ceiling of Hanwoo loose barn by using CFD (Computational Fluid Dynamics) code, FLUENT and to recommend the optimum fan installing method. The fan installation options were fan tilting angles of $45^{\circ}$ and $0^{\circ}$ (horizontal). The fans of 1 m diameter were installed at 3 m above floor. A velocity scale on 10 cm and 110 cm above floor and air flow pattern were used as the parameters to evaluate the fan installing methods. The fans tilted at $45^{\circ}$ angle produced higher wind at 10 cm and 110 cm above floor and more uniform air flow pattern, compared with the fans installed horizontally. Based on these results, fans tilted at $45^{\circ}$ angle may help to reduce Hanwoo's heat stress and will dry the floor better than fans installed horizontally. Therefore, it is suggested that the fans of 1 m diameter in a standard Hanwoo loose barn should be installed at a $45^{\circ}$ tilt angle and 3 m above floor with spacing of 5 m at the center of a room column.
Keywords
Hanwoo; Fan; Heat stress; Floor drying; Litter;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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