摘要
目前国内外常见的鸡合通风降温系统有横向负压式机械通风,纵向负压式机械通风和风机一湿垫降温系统,而以前者最为普遍。通过对这三种系统的测试,表明风机-湿垫系统降温效果最为明显,效益最佳;纵向式其次,横向式最差。作者建议,应对现有的横向式通风鸡舍加以改建,代之以另两种通风系统。这样就可以进一步改善鸡舍环境条件,逐步解决高温气候下保持较高生产率的问题。
At present the widespread ventialtion and cooling systems in poultry houses in the world include crosswise exhaust mechanical system,longitudinal exhaust mechanical system and evaporative pad system,and the crosswise exhaust mechanical system is tn the most common use.By the measuring for the three systems,it proves that the evaporative pad system is the most effective for cooling,the longitudinal is the second,and the crosswise the last.the crosswise exhaust mechanical system could be replaced with other two kinds of ventilation and cooling systems for improving environmental conditions further and solving the problem of lower productive efficiency in hot weather.
基金
本课题为上海市高教局科研项目
关键词
降温
鸡舍
选择
通风系统
Ventilation
Cooling
Evaporative pad
Temperature field
Velocity field
