保育舍冬季湿热环境与颗粒物CFD模拟研究
发布时间：2018-07-13 10:08
【摘要】：为对保育舍内环境质量状况进行评估和改善舍内环境提供有益参考,应用CFD对采用负压通风和水泡粪保育猪舍的气流场、温度场、湿度场和颗粒物浓度场进行三维稳态模拟。由模拟结果可知:在冬季送入气流,舍内动物所在区域高度为0.2 m的风速基本保持在0~0.2 m/s,大部分区域风速在0.1 m/s以下,相对湿度则基本在60%~70%之间,舍内的平均温度保持在26~34℃,大部分区域的PM_(2.5)、PM_(10)和TSP质量浓度分别在0~0.1 mg/m~3、0~0.7 mg/m~3和0~1.0 mg/m~3之间。由《规模猪场环境参数及环境管理》可知,舍内环境质量基本满足保育猪对冬季环境需求,但在单元入口及墙角处仍有优化空间。
[Abstract]:In order to evaluate the environmental quality and improve the environment, CFD was used to simulate the airflow field, temperature field, humidity field and particle concentration field of pig shed with negative pressure ventilation and blistering manure. From the simulation results, it can be seen that in winter, the wind speed of 0.2 m in the area where the animals are located is basically kept at 0 ~ 0.2 m / s, the wind speed in most areas is below 0.1 m / s, the relative humidity is between 60% and 70%, and the average temperature in the house is kept at 2634 鈩，
本文编号：2118997
[Abstract]:In order to evaluate the environmental quality and improve the environment, CFD was used to simulate the airflow field, temperature field, humidity field and particle concentration field of pig shed with negative pressure ventilation and blistering manure. From the simulation results, it can be seen that in winter, the wind speed of 0.2 m in the area where the animals are located is basically kept at 0 ~ 0.2 m / s, the wind speed in most areas is below 0.1 m / s, the relative humidity is between 60% and 70%, and the average temperature in the house is kept at 2634 鈩，
本文编号：2118997
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