As the key equipment for heat transfer,heat exchangers play a vital role in industrial production.The background,characteristics and advantages of the application of printed circuit heat exchanger(PCHE)are introduced,the progress of domestic and foreign research for PCHE are discussed,the difficulties in the research process are analyzed,and the shortcomings of the current stage of research are put forward,in order to provide reference for in-depth research on the design and application of PCHE,with a view to guiding practical engineering applications.
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