A New Three Medium Composite Heat Exchanger
The solar-air compound heat pump system which core component is a three medium composite heat exchanger is a new heat pump system. Compared with the conventional air source heat pump system, the COP of the new dual heat source heat pump system is at least increased by 40%, and the energy-saving effect is obvious. At present, the only dual heat source composite heat exchanger used in heat system is a finned-tube three medium composite heat exchanger. With the heat exchanger, the synchronous heat exchange between a liquid heat source, a gaseous heat source and a refrigerant could be realized, and the performance of the heat pump system could be effectively improved. But the structural defects of the finned-tube three medium composite heat exchanger result in processing difficulty, and it is difficult to form a batch production with the present processing technology. The hidden sealing danger of the heat exchanger also exists. In the paper, a new three medium composite heat exchanger has been designed. The structural flaw of the finned-tube three medium composite heat exchanger has been better avoided. And it makes the process easier and the batch production more convenient.
Weiguo Pan, Jianxing Ren and Yongguang Li
C. Zhang et al., "A New Three Medium Composite Heat Exchanger", Advanced Materials Research, Vols. 347-353, pp. 3143-3146, 2012