Entropy Generation Rate for Performance of Heat Transfer in Heat Exchangers

Abstract

This chapter provides a specific study of the performance of thermal systems, principally heat exchangers, which are applied in several industrial applications such as chemical industry, energetic industry, industrial lasers, and so on. These thermodynamics systems were critical in transferring heat from a higher to a lower temperature fluid. They have been used for several years and are available currently for various designs. Thermodynamic properties influence the heat transfer and the performance of heat exchangers. Therefore, it is important during the design of heat exchangers to select primary the accurate operating conditions in terms of thermodynamics to provide a minimum amount of entropy generation in the system. In this study, the concept of entropy is used to analyze heat transfer processes from the thermodynamic viewpoint through the second law of thermodynamics. To assess heat exchanger performance, investigations are given for entropy generation, entropy generation number, and efficiency. These studies offer a new way to obtain well-designed heat exchangers.