Analysis of Ventilation Efficiency by Duct System in Pig House

돈사 덕트 환기시스템의 효율 분석

  • Song, J.I. (National Livestock Research Institute) ;
  • Yoo, Y.H. (National Livestock Research Institute) ;
  • Lee, D.S. (National Livestock Research Institute) ;
  • Choi, H.C. (National Livestock Research Institute) ;
  • Kang, H.S. (National Livestock Research Institute) ;
  • Kim, T.I. (National Livestock Research Institute) ;
  • Jeon, B.S. (National Livestock Research Institute) ;
  • Park, C.H. (National Livestock Research Institute) ;
  • Kim, H.H. (National Livestock Research Institute)
  • Published : 2002.08.30

Abstract

The experiment was carried out to investigate the optimal air velocity for improving the ventilation efficiency of duct ventilation system used in Korean swine building. The results are followed ; In 2.2 m height of duct, the air velocity of hole was 5.0 m/s as the over level of recommendation. In different hole interval, the air velocity was various of 4.6${\sim}$11.6 m/s in narrow hole interval, 5.4${\sim}$10.9 m/s in broad hole interval. But the air velocity was 6.6${\sim}$7.7 m/s in duct system pierced hole with equal interval, and it was equal velocity in different parts of duct in this hole interval.