P.3.1.5 Development and Application of Micro Channel Heat Exchanger for Heat Pump
In the paper, micro channel heat exchangers are applied to residential and commercial heat pump airconditioning systems. The performance of heat pump system using micro channel heat exchangers is compared with that of baseline heat pump system using tube & fin heat exchangers. Experimental results show that the capacity of heat pump system can increase by 4% at most by using micro channel heat exchangers, and energy efficiency can increase by 4% at most. The weight of heat exchangers can be reduced by 45% at most, and the refrigerant charge can be reduced by 51% at most. In addition, the distribution of refrigerant becomes more uniform by distribution optimization.