ABSTRACT:

The performance of the heat transfer process in a given heat exchanger is determined for longitudinal fin profiles (rectangular). The performance of a double pipe heat exchanger is analyzed in two parts. In optimization for Numerical analysis a MATLAB program was create. The theories of transient heat transfer in double-pipe heat exchangers were explained and followed by literature correlations. This program will serve to optimize the fin height fin so as to obtain maximum possible heat transfer without any wastage of material at a given length and inlet conditions. Also, all the character like efficiency, pressure drop, effectiveness, heat transfer coefficient, outlet temp. of both fluid, overall heat transfer coefficient studied same time for all fin height because output of program is in tabular form. In second part Numerical analysis was carried out in a counter flow double pipe heat exchanger for optimized fin for varied mass flow conditions. Base width and height of the fin were kept constant. Experimental results and analytical result from MATLAB program compared and found in agreement.