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http://dx.doi.org/10.5307/JBE.2010.35.6.434

Necessary Conditions for Optimal Ventilation of Small Negative Pressure Ventilating Piglet House with Corridor and Attic for Preheating  

Lee, Seung-Joo (Division of Bioresources Engineering, Chungnam National University)
Chang, Dong-Il (Division of Bioresources Engineering, Chungnam National University)
Hwang, Seon-Ho (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.6, 2010 , pp. 434-442 More about this Journal
Abstract
This study was carried out to determine necessary conditions for optimal ventilation of small windowless piglet house (4.0 (W) $\times$ 11.0 (L) $\times$ 2.6(H) m) with corridor and attic for preheating using CFD (Computational Fluid Dynamics) simulation. The experimental weaning piglet house was consisted of a corridor, an attic, 4 rooms (3.0 (W) $\times$ 2.75(L) m), 3 fences (0.7(H) m), 5 air inlets and 2 exhaust fans (0.4 (D) m) and simulated using CFD code, FLUENT. The simulation results for the experimental weaning piglet house showed that each room was uniformly ventilated under all the experimental conditions and air velocities at 0.1 m above floor are less than 0.15 m/s for 0.75 m/s and 1.0 m/s of air inlet velocity but 0.61 m/s for 1.25 m/s. The simulation results are similar to the measured results. Considering the air flow pattern, ventilating efficiency, air velocity at 0.1 m above floor and cold stress of weaning piglets and so on, the optimum velocity of air inlet might be 1.0 m/s.
Keywords
Weaning piglet house; Preheating; Ventilation; CFD simulation; Air inlet;
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Times Cited By KSCI : 1  (Citation Analysis)
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1 Bjerg, B., K. Svidtb and D. Zhang. 2002. Modeling of air inlets in CFD prediction of airflow in ventilated animal houses. Computers and Electronics in Agriculture 34:233-235.
2 Grub, W., E. P. Forester and L. F. Tribble. 1974. Swine building air contaminant control with pit ventilation. ASAE Paper No. 74-4532.
3 Korean Association of Swine Veterinarians(KASV). 2006. Nutritional Approach to Porcine Wasting Syndrome. Porcine Wasting Syndrome Workshop: 66-68. Korean Association of Swine Veterinarians. Daejeon, Korea. (In Korean)
4 Lee, S. J., W. M. Gutierrez, B. S. Kim, J. Y. Han, D. I. Chang and H. H. Chang. 2008. Study on Modification of Inside Environment in Windowless Weaning Piglet House. Korean J. of Environmental and Agriculture 27(2):150-155. (In Korean)   과학기술학회마을   DOI
5 Midwest Plan Service. 1977. Structures and Environment Handbook. MWPS, Iowa State University, Ames, Iowa, USA.
6 Mistriotis, A., T. Dejong, M. J. Wagemans and G. P. A. Bot. 1997. Computational Fluid Dynamics(CFD) in the modeling and design of ventilation systems in the agricultural industry-A review. Bioresource Technology 98:2386-2414.   DOI
7 National Agricultural Products Quality Management Service in Republic of Korea(NAPQMS). 2007. The Korean Agriculture Statistics--The part of Livestock. (in Korean)
8 Wathes, C. M. and D. R. Charles. 1994. Livestock Housing. CAB International, Wallingford, Oxfordshire, UK