Journal of Biosystems Engineering

Korean Society for Agricultural Machinery (한국농업기계학회)
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Necessary Conditions for Optimal Ventilation of Small Windowless Piglet House with Negative Tunnel Ventilating System

소규모 음압터널환기방식 무창자돈사의 최적 환기 요건에 관한 연구

  • Lee, Seung-Joo (Division of Bioresources Engineering, Chungnam National University) ;
  • Chang, Dong-Il (Division of Bioresources Engineering, Chungnam National University) ;
  • Gutierrez, Winson M. (Department of Animal Science, Gyeongsang National University) ;
  • Park, Jeong-Sik (Department of Animal Science, Gyeongsang National University) ;
  • Jeon, Sang-Hoon (Department of Animal Science, Gyeongsang National University) ;
  • Cho, Hyoung-Je (Department of Animal Science, Gyeongsang National University) ;
  • Oh, Kwon-Young (Department of Agricultural Engineering, National Institute of Agricultural Science) ;
  • Chang, Hong-Hee (Department of Animal Science, Gyeongsang National University)
  • Published : 2009.02.25
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Abstract

This study was carried out to determine necessary conditions for optimal ventilation of small windowless piglet house (5.2 (W) ${\times}$ 12.3 (L) ${\times}$ 2.3 (H) m) with negative tunnel ventilating system using CFD (Computational Fluid Dynamics) simulation. The weaning piglet house for this experiment was consisted of 4 rooms (520 (W) ${\times}$ 300 (L) cm), 3 fences (70 (H) cm), 1 air inlet (350 (W) ${\times}$ 2 (H) cm) and 1 exhaust fan (50 (D) cm), and simulated using CFD code, FLUENT. The simulation results for the original weaning piglet house showed ununiform ventilation for each room. Therefore, to uniformly ventilate all rooms, the heights of the air inlet and first fence were modified to 3 cm and 100 cm, respectively. The simulation result f3r the modified weaning piglet house showed uniform ventilation for all rooms and the optimum air inlet velocity of 1.4 m/s.

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References

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