多联式空调机组室外机与环境换热的数值模拟研究
Numerical simulation of heat transfer between outdoor units of multi-connected split air conditioning systems and ambience
摘要：
将肋片盘管结构近似为多孔介质，应用CFD模拟方法分析了室外机与环境空气的换热过程，实验测试获得的速度和温度分布结果验证了CFD模拟方法的准确性。应用CFD模拟方法分析了不同布置方案下室外机的进风温度，得出3台室外机呈直线布置时的优化方案：相邻2台机组之间的最小距离为0.2 m，机组主要进风侧与其周围高于机组的竖直壁面的极限间距为0.8 m。
关键词：空调,室外机,CFD,多孔介质,布置方案
Abstract：
Treating the fin-coil structure as porous medium, analyses the heat transfer between the outdoor units and the ambience by using CFD method. Validates the accuracy of CFD simulation in terms of velocity and temperature distribution obtained by a test. Analyses the intake temperature of outdoor units under different arrangement schemes by CFD method, and obtains the optimal scheme for three units in a line, which is that the minimum separation distance between neighboring units is 0.2 m, and a vertical wall shall be apart from the unit line at least 0.8 m.
Keywords:air conditioning, outdoor unit, CFD, porous medium, arrangement scheme