论文部分内容阅读
随着环境保护意识的不断加强,传统制冷剂的替代问题越来越重要,自然工质制冷剂又一次引起了研究者的重视。CO_2作为自然工质之一,跨临界热泵热水器是其重要的应用。很多研究表明:气冷器对CO_2热泵热水器系统性能的影响比较大,国内外对此的研究也比较深入。本文着重介绍了国内外对CO_2热泵热水器用气冷器的结构和传热模拟的研究现状。
With the increasing awareness of environmental protection, the substitution of traditional refrigerants becomes more and more important. Natural refrigerant once again arouses researchers’ attention. As one of the natural working fluids, transcritical heat pump water heater is an important application of CO_2. Many researches show that the effect of gas cooler on the performance of CO 2 heat pump water heater system is relatively large, and the researches at home and abroad are also more in-depth. This article focuses on the current research on the structure and heat transfer simulation of gas cooler for CO 2 heat pump water heaters at home and abroad.