建筑群风场环境下空调室外机周围热环境分析  

Thermal Environment Analysis of Outdoor Units of Air Conditioners in the Wind Field Environment of a Building Cluster

作　　者：李璐瑶 张艳[1] 解海卫[1] 敖虎 

机构地区：[1]天津商业大学天津市制冷技术重点实验室,天津300133

出　　处：《日用电器》2024年第3期22-28,36,共8页ELECTRICAL APPLIANCES

基　　金：天津市研究生科技创新项目,项目编号2022SKY328。

摘　　要：空调运行时,外部室外机的散热会受到建筑群内复杂风场环境的干扰,继而影响其运行效率。以布置在凹槽内部的空调室外机为研究对象,考虑建筑群内部的流场变化,研究了正面风、后面风向下室外机运行时的热环境,分析了室外机随楼高、位置的热环境差异,并着重对比了处于迎风建筑和下风向建筑中室外机散热的差异。研究表明,空调室外机的运行效能受建筑群内风场环境的影响较大。正面风向下,风速越大,室外机效率越差;下风向建筑B处室外机运行时的效率更差。后面风向下,处于下风向建筑A处室外机的平均进风温度相对来说更高。When the air-conditioner is in operation,the heat dissipation of the external outdoor unit will be interfered by the complex wind field environment in the building cluser,which willin turn affect its operational efficiency.Taking the outdoor unitofthe airconditioner arranged inthegroove as the object,considering the change oftheflow field inside the building cluster,the thermal environment of the frontal wind and therear wind when the outdoor unit is running downward is studied,the thermal environment difference of the outdoor unit with the height and location of the building is analyzed,and the difference of heat dissipation of the outdoor unit in the windward building and the downwind building is emphasized.The result shows that the operating efficiency of air-conditioning outdoor units is strongly influenced by the wind field environment within the building cluster.In the frontal wind direction,the higher the wind speed,the worse the efficiency of the outdoor unit;the efficiency of the outdoor unit operating at building B in the downwind direction is even worse.In the back wind direction,the average inlet temperature of the outdoor unit at the downwind building A is relativelyhigher.

关 键 词：建筑群 风场环境 空调室外机 散热 

分 类 号：TU831.4[建筑科学—供热、供燃气、通风及空调工程]