Abstract
Based on cold-hot-medium type three-fluid heat exchanger, the characteristics of the three-fluid plate heat exchangers composed of 6 channels and 9 channels have been investigated theoretically. The heat transfer effectiveness of the three-fluid plate heat exchangers was defined by considering the maximum heat transfer rate. It was found that the performance of the three-fluid plate heat exchangers depended on the arrangements of three-fluid heat exchanger and the initial temperature ratio.
