Evaluation of Ventilation Systems in an Enclosed Growing Pig House

무창육성돈사의 환기시스템에 따른 환기효율 평가

  • Song, J.I. (National Livestock Research Institute, R.D.A) ;
  • Choi, H.L. (School of Agricultural Bio-technology Engineering, Seoul National University)
  • 송준익 (농촌진흥청 축산기술연구소) ;
  • 최홍림 (서울대 농생명공학부)
  • Published : 2002.02.28


An experiment was conducted to evaluate a ventilation system, which was devised to encourage farmers to use the enclosed growing and finishing pig housing system. A roof-air-entry ventilation system in winter and a side-wall-air-entry system in summer were evaluated. Air flow rate on the floor level which is the low part of pen and the living area of pigs in the enclosed growing and finishing pig house during winter was measured at 0 to 0.19 m/s at the minimum ventilation efficiency of 1,440 $m^{3}/h$. During summer the air flow rate was detected at 0.07 to 0.42 m/s at the maximum ventilation efficiency of 24,000 $m^{3}/h$. Therefore, it is concluded that the side-wall ventilation system is suitable for growing and finishing pigs in the enclosed house during the days of mid-summer and the roof-ventilation system was suitable during the coldest days of mid-winter. In addition, although the enclosed pig house has the system in which air exhausts through only one side wall, air should enter through both-side walls for the better ventilation performance.


Growing and finishing pig house;Enclosed;Air flow;Ventilation


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