Abstract

This study analyses heat transfer coefficients in a shell and tube heat exchanger and the effectiveness of reduced temperature of exhaust gases in shell and helically coiled tube heat exchanger. This facilitates low installation cost, high performance and improved safety. The experimental setup consists of a shell with a coaxial outer tubular, end plates attached to the inner walls and a spiral coil through which water flows. These end plates encompass a shell cavity in tubular shape. This facilitates the inlet and outlet intended for exhaust gas. The coil is wounded in such a way that the axis of shell fit the inner and outer walls with limited radial clearance. Due to axial spacing of coils from one another, a spiral path is generated in the interior shell cavity which provide amenities for water flow. This path creates, helps in reducing the temperature of exhaust gas.

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