Effect of Scale on Heat Transfer Characteristics of the Plate Heat Exchanger for Binary Cycle Power Generation

Abstract

Effect of scale on heat transfer characteristics of the plate heat exchanger for binary cycle power generation were investigated experimentally. It is cleared that the increment of scale is proportional to the square of time. The amount of scale are closely relating to the composition melting in the hot spring water and the velocity. When the amount of scale is the same, the overall heat transfer coefficient changes by a hot spring ingredient. The degradation of the heat transfer performance varies with the velocity and chemical composition of the hot spring, and the way of the degradation is gentle one having a small proportional constant a.