PERFORMANCE EVALUATION OF HEAT TRANSFER ENHANCEMENT BY CORRUGATED PLATE HEAT EXCHANGER

A heat exchanger is a piece of equipment built for efficient heat transfer from one medium to another. The media may be separated by a solid wall to prevent mixing or they may be in direct contact. They are widely used in heating, refrigeration, air conditioning, power stations, chemical plants, petrochemical plants, petroleum refineries, natural-gas processing, and sewage treatment. The classic example of a heat exchanger is found in an internal combustion engine in which a circulating fluid known as engine coolant flows through radiator coils and air flows past the coils, which cools the coolant and heats the incoming air. Corrugated plate heat exchangers have larger heat transfer surface area and increased turbulence level due to the corrugations. The objective of this study is to investigate the heat transfer characteristics and thermal performance of plate heat exchanger with a mixed plate configuration. In this study, experimental heat transfer data will obtained for single phase flow (water-to-water) configurations in a corrugated plate heat exchanger for asymmetric 55°/25 ° chevron angle plates. The effect of chevron angle with other geometric parameter on the heat transfer coefficient will be study. Reynolds number ranging from 85 to 600 and Prandtl number ranging from 3.9 to 5.7 will be taken for given experiment. Based on the experimental data, a correlation will estimate for Nusselt number as a function of Reynolds number and Prandtl number using mathematical calculations. Modified Wilson Plot technique is used for validation of obtained result. Obtained correlation is compared with correlations in literature