铝圆管换热器用于空调的应用研究

Reserch on the Application of Aluminum Coils in Air Conditioners

介绍了铝内直齿换热器的主要特点,通过Φ7.94铝内直齿圆管冷凝器和蒸发器在整机中的制冷性能匹配试验,得到了该类换热器的基本整机匹配方法。实验结果表明,使用铝管换热器同尺寸替换铜管换热器,冷凝能力约为原机的98~103%,蒸发能力约为原机的96~98%,匹配至最佳能力比铜管换热器节约制冷剂10%。试验还表明,用于R410a制冷剂的换热性能要优于R22制冷剂。

Basing on the data of system matching test of the split air conditioner and window-type air conditioner, this paper introduces the characteristics of inner groove aluminum tubes, and the method of the system matching is recommended. The results show that using the same size coils of aluminum instead of copper coils for a condenser, the proportion of aluminum coils condensing ability is 98~103% to the copper coils, while the evaporating ability is 96~98% to the copper's. When both have their own optimal cooling and/or heating capacity, the copper coils use 10% more refrigerant than that of the aluminum. The test also indicates that the refrigerant system with aluminum coils show better capacity with R410 a.