建筑群内空调室外机安装布置对其散热的影响

Influence of the Installation Arrangement of Air-conditioning Outdoor Units in a Building Cluster on Their Heat Dissipation

不合理的安装布置位置和建筑群内复杂的风场环境会对室外机的运行效果产生一定的影响。以行列式建筑群为研究对象,利用CFD模拟技术研究了凹槽中的室外机在三种不同安装位置处运行的热环境,并比较了迎风建筑和下风向建筑处室外机的散热差异。结果表明,处于布置3条件下室外机的运行效果最好,而处于布置2条件下室外机的运行效能最差,且受外部复杂风场、建筑位置以及自身进出风位面方位的影响较为明显。另外,下风向建筑B处室外机的运行效果更差。

Unreasonable installation location and complex wind field environment in the building cluster will have a certain impact on the operating effect of the outdoor unit.The thermal environments of outdoor units in alcoves operating at three different installation positions were investigated using CFD simulation in a cluster of row-type buildings,and the differences in heat dissipation of outdoor units at windward and downwind buildings were compared.The results show that the outdoor unit in Arrangement 1 has the best operating effect,while the outdoor unit in Arrangement 3 has the worst operating efficiency,and it is more obviously affected by the complex external wind field,the location of the building,and its own inlet/outlet wind plane orientation.In addition,the operation of the outdoor unit at the downwind building Bis worse.