大型叠层笼养肉鸡舍气流组织模拟与优化  

Simulation and optimization of the air distribution of large stacked cage broiler coop

作　　者：纪文康 施志钢[1] 张璐瑶 王琪琪 高新明 JI Wenkang;SHI Zhigang;ZHANG Luyao;WANG Qiqi;GAO Xinming(School of Environmental and Municipal Engineering,Qingdao University of Technology,Qingdao 266525,China;Shandong Sinder Technology Co.Ltd.,Weifang 262200,China)

机构地区：[1]青岛理工大学环境与市政工程学院,青岛266525 [2]山东信得科技股份有限公司,潍坊262200

出　　处：《青岛理工大学学报》2024年第2期147-154,共8页Journal of Qingdao University of Technology

基　　金：国家自然科学基金资助项目(52078257);德阳市揭榜挂帅重大项目(2022JBZG002)。

摘　　要：针对大型叠层笼养肉鸡舍过渡性通风模式下温度分布不均的问题,通过现场实测建立三维数学模型,采用计算流体动力学方法对试验鸡舍进行气流组织模拟分析,提出改进方案并进行测试验证。结果显示:鸡舍内部气流分布不均,大部分气流从鸡舍上方空间流出舍外,未与肉鸡充分换热;鸡舍长度方向上温差大,前后最大温差可达4℃,给整体调控带来难度。在天花板下安装导流板可以明显增加肉鸡生活区气流速度,肉鸡生活区域平均风速提高了29%~61%,有效提高了室外空气利用率和鸡舍换热效率,使前后温差控制在2℃以内。研究表明天花板下导流板的合理使用可以有效改善鸡舍气流组织,使鸡舍内温度保持良好的均匀性。Aiming to solve the problem of uneven temperature distribution in transitional ventilation mode of large stacked cage broiler coop,a three-dimensional mathematical model was established through field measurement.The computational fluid dynamics(CFD)method was adopted to simulate and analyze the air distribution of experimental broiler coop,and an improved scheme was proposed and tested for verification.The results showed that the air distribution in the broiler coop was uneven;most of the air flowed out of the house from the space above the broiler coop,failing to fully exchange heat with the broilers.The temperature difference in the length direction of the broiler coop was large,and the maximum temperature difference between the front and the back reached 4℃,which brought difficulty to the overall control.The airflow velocity in the living area of broilers could be significantly increased by installing the deflector under the ceiling.The average wind speed in the living area of broilers was increased by 29%—61%,which effectively improved the outdoor air utilization rate and the heat transfer efficiency of the broiler coop and consequently the temperature difference between the front and the back was controlled within 2℃.The research showed that the reasonable use of the deflector under the ceiling could effectively improve the air distribution of the broiler coop and make the temperature in the broiler coop maintain good uniformity.

关 键 词：肉鸡舍 过渡性通风 计算流体动力学 气流组织 

分 类 号：TU264.7[建筑科学—建筑设计及理论]