【摘要】 回热器及预冷器是超临界二氧化碳布雷顿循环发电中核心换热部件，它们的高效性和经济性对于循环的应用意义重大，为了切实比较回热器及预冷器采用印刷电路板式换热器及管壳式换热器的差异，本文以某工程参数为基础，分别设计了两种换热器的工程方案，并对两种方案的传热性能及经济性进行比较分析。更多还原

【Abstract】 The recuperator and pre-cooler are the core heat transfer components in the supercritical carbon-dioxide brayton cycle for power generation, meanwhile their high efficiency and low-cost are of great significance for the application of the cycle. This paper has compared the differences between the printed circuit heat exchanger and shell-tube heat exchanger which is used for the recuperator and pre-cooler. This research based on the certain engineering parameters, designs two engineering programs for the two types of heat exchangers respectively, and carries out the comparative analysis of the heat transfer performance and economy of the two programs.更多还原