Performance Tests for an All-welded Plate Heat Exchanger

摘要

Heat transfer and pressure drop in an all-welded plate heat exchanger with ripples have been experimentally investigated in this paper. The ripples were corrugated by the way of special machine. The heat transfer coefficient and pressure drop was experimented, and also calculated by the wall temperature method. The flow of water inside the plate heat exchanger was arranged as a single-pass and countercurrent. The hot water and cold water inlet temperatures were maintained at around 50°C and 35°C, respectively, while the hot oil and cold water inlet temperatures were got at about 40°C and 35°C, respectively. It indicated that the overall heat transfer coefficient calculated by wall temperature method fitted the actual value.