KFR70-LW/Bd空调器室外机组流场试验分析

首次介绍了采用热线风速仪测量分体式房间空调器室外机组内外流场的方法和流场测试结果。以KFR70－LW／Bd某型空调器室外机组为测试对象进行了流场分布测试。根据测试数据，详细分析了风扇进、出口的气流速度的分布，为空调器室外机组换热器的性能研究、提高制冷效率、降低气动噪声提供了有效的技术支持。

Experimental Study of Flow Fields of the Out-Door Unit for KFR70-LW/Bd Air Conditioners

Aiming at improving the performance of air conditioners, we, for the first time in China, measured and analyzed the flow field of the out-door unit of KFR70-LW/Bd air conditioner made by Chunlan Group in mainland China. We measured the velocity distribution with hot-wire probe and pressure distribution with total pressure probe. Fig.17 gives the velocity distribution around the heat exchanger, and Fig.2 gives the velocity distribution at the fan outlet. According to the measured data, complicated flow field profiles of the out-door unit were analyzed, including velocity profiles and pressure profiles. We find that the velocity distributions at fan inlet is distorted as shown in Fig.17, and the velocity distributions at fan outlet is swirling as shown in Fig.2(d). These measured data can be used to optimize the shape of its fan and the structure of its heat exchanger, thus improving the performance of its heat exchanger.