Application Effect of Sensible Heat Recovery Ventilation System in Parent Stock Broiler House
The application effect and heat recovery performance of sensible heat recovery ventilation(SHRV)system were evaluated in parent stock broiler house to study its operational effect in broiler house in cold area.Two chicken houses of the same type were selected,the control house used boiler heating,while the test house closed 7/10 heating pipes and added a set of SHRV to assess its effect.The results re-vealed that the average temperature in the test house was decreased about 0.5 ℃ in comparison to the con-trol house,with not significant difference(P>0.05),while the relative humidity,CO2 concentration and NH3 concentration increased slightly,with insignificant difference(P>0.05).There were significant differences in temperature and NH3 concentration at different locations in both houses(P<0.01).The sensible heat recovery efficiency of SHRV was 64.96%~78.95%,the energy efficiency ratio averaged 4.1.The operation of SHRV reduced the cost by 10,500 yuan per month.The study therefore indicates that by running SHRV,the broiler house in this area can recycle more than 64 percent of the waste heat,hence re-ducing the breeding cost.