Abstract
A method for predicting evaporation performance of a new plate-type heat exchanger for water-refrigerant systems such as chillers has been developed. The main part of this heat exchanger consists of plates packed together in a casing, and winding tubes are connected to both sides of the plates. Refrigerant flows inside the tubes, and water flows in the space between the plates. A herring-born-like pattern is formed in this space by the cross sections of the winding tubes. This method estimates evaporation performance of the heat exchanger by using two new heat-transfer correlations : one for the winding-tube banks on the water side and one for pressure drops on both the water and refrigerant sides.
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