诱导送风混合箱宽度性能研究  

Study on performance of mixed-box width for inducted ventilation

作　　者：陈乾[1] 谢军龙[1,2] 刘鑫[1] 郭宝坤[1] 

机构地区：[1]华中科技大学 [2]绿色风机制造湖北省协同创新中心(培育)

出　　处：《制冷与空调》2015年第9期26-30,共5页Refrigeration and Air-Conditioning

基　　金：国家自然科学基金资助项目(51376077);湖北省2011计划(鄂教科函(2012)56号)

摘　　要：主要针对某密闭房间内的竖壁诱导式通风系统进行数值模拟分析。根据混合箱宽度与送风口宽度参数的不同建立不同的混合箱模型并分别进行模拟研究,探讨混合箱宽度与送风口宽度对回风量及诱导比的影响。通过比较不同结构下诱导送风的诱导比和混合箱附近气流组织特性,得出以下结论:送风口宽度存在最佳范围使得诱导比最大;在送风口宽度处于最佳范围时,混合箱宽度增大对诱导比几乎没有影响;当送风口宽度较窄且不在合适范围内时,随着混合箱宽度增加诱导比先减小后增大,且混合箱宽度等于送风口宽度时诱导比最大。According to the induced ventilation system for vertical wall of one cabin,numerical simulation analysis is carried out.Several models of difference mixed-box width or outlet width are established,and the influences of mixed-box width or outlet width on air return volume and the inducted ratio are discussed through different numerical simulation results.Through the comparison of induction ratio of inducted ventilation under different structures and air distribution characteristics around the mixed-box,the conclusions are obtained.The induction ratio of maximum is achieved when outlet width is in a suitable range;when the outlet width is in the suitable range,the increase of the mixed-box width has nearly no influences on the induction ratio;if the outlet width is narrower than the suitable range,the induction ratio decreases first and then increases with the increase of mixed-box width,and the induction ratio reaches the maximum when the mixed-box width is equal to the outlet width.

关 键 词：诱导送风 数值模拟 混合箱 贴附射流 

分 类 号：TM925.12[电气工程—电力电子与电力传动]