Abstract:Aiming at the problem of the high concentration ofharmful gases and poor air distribution in an intelligent control broiler housein China

the mathematical and physical models of induced ventilation systemwere established.According to the finite volume method

the corresponding boundary conditionswere set up.Numerical simulation has been done by Airpak. It is analyzed how to set theparameter of induced fan and factors in broiler house

including the velocity

temperature

and ammonia concentration. The results prove that the induced ventilation method caneffectively solve the problem of high temperature and ammonia concentration inbroiler house

achieve the better ventilation effect

and improve theenvironment quality in broiler house when the induced fan is set at 15° of thedeclination

and 12m of the appropriate longitudinal spacing

and the horizontalspacing from 7m to 7.5m.