Optimization Design and Simulation Verification of Horizontal Ventilation System of Chicken House in Forest Orchard
In order to investigate the setting of the minimum ventilation opening in winter for the chicken coop in the forest or-chard,which is popularly used in the southern Xinjiang region,so that the coop can achieve the effect of timely ventilation and heat preservation,CFD simulation analysis was carried out to analyze the diffusion and concentration distribution of NH3and H2S,which are more hazardous in the coop,through numerical modeling,mesh division,standardk～εturbulence model and fi-nite element volume solution method of SIMPLE.The results show that the gas diffusion rate is higher in the area near the wall surface of the side walls of the coop,and the gas concentration is higher in the upper layer near the wall surface of both sides;the actual measurement test at 18℃ room temperature verifies the accuracy of CFD gas distribution simulation,while the measured NH3concentration is generally higher than H2S;the upper layer of the coop near the wall surface area is opened with a vent,and the CFD verification results show that under the initial diffusion rate of 0.01m/s,the low concentration of the gas in the coop With the help of Siemens PLC,the ventilation system based on gas concentration sensor was set up to control the concentration of gas in the house through intermittent ventilation,which can achieve good effect of ventilation in the chicken house in winter.
The Orchard Chicken CoopClosed TypeAir VentsCFDSimulationVentilating Control
万方数据
维普
