The design and construction of shell and tube heat exchangers for use in the manufacture of Ice

Abstract

This paper presents a study of heat exchanger design for improving the performance of ice maker by using waste water from ice factory. The heat exchanger was made of stainless steel and had 4.023 m2 of heating surface. After using the heat exchange in the waste water pond which the temperature was 0 C, the temperature of feed water was decreased from 28 C to 22 C. The COP of the ice maker was increased and the factory can save energy consumption 52,034 kWh/year or 61,993 baht/year. The payback period was 0.5 year