Essay On Heat Exchanger

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ABSTRACT A Heat Exchanger is a device use for the heat transfer from one fluid to another, whether the fluids are separated by a solid wall so that they never mix or the fluids are directly in contact. The heat exchanger is widely used in different industries such as process, petroleum refining, chemicals and paper, power generation, chemical processing, A.C, refrigeration, and a food processing applications. Etc. Various Enhancement methods are used to increase performance of heat exchanger such as treated surfaces, rough surfaces etc.

CHAPTER 1
1.1 INTRODUCTION
Double pipe heat exchanger is used in chemical industry. When to construct this type of heat exchanger, the size of material that is considered since it affected the overall heat transfer. Basically the heat exchanger has two types that are parallel flow heat exchanger, counter flow heat exchanger and efficiency of counter flow heat exchanger is high than the parallel flow heat exchanger. So it is widely used. After few years of research the fins has introduce in heat exchangers for improve performance.
The fins increase the effective area of a surface than heat transfer will increase. past few years lot of modification are implemented in fin design for increase heat transfer rate in the heat exchanger. The reason for …show more content…

In experimental analysis result was completed and the effect on temperature reduction and the pressure drop in the finned tube and shell side was observed. In present the heat transfer rate and efficiency is low by using finned tube. Compare both existing and new model type heat exchanger over all heat transfer rate is increased and also the efficiency of the heat exchanger for semi circle fins is increase d by 3%, and for hexagonal fins is increased by 6% of finned tube heat exchanger. So the hexagonal fin is used than the semicircle

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