Testing Anti-Frozen Characters of Air-Water Plates Heat Exchangers by FLUENT

Physical structure are compared between air-water plate heat exchangers (PHE) and tube-fin type heat exchangers in this paper, which show that the air-water PHE has the stable character in handling the cold air below 0degC because of its compact and knock-down structure. Then the courses of water being iced in the motionless state and in the flowing state were simulated by the CFD software Fluent with the model of Solidification/Melting. The results show that the corrugated passages of the air-water PHE are anti-frozen structures for flowing water, which is appropriate to the air-water plate heater´s optimization and manufacture.