PERFORMANCE ANALYSIS AND OPTIMIZATION OF SHELL AND TUBE HEAT EXCHANGER USING CU- WATER NANOFLUID AS A COOLANT

HEAT EXCHANGER (THERMAL ENGG.)

The recent development of nanotechnology have put an impact in the field of heat transfer and invented the new type of heat transfer fluids called nanofluids. Nanofluids are the stable suspension of nanosized solid particles (1-100 nm) into the base fluid or conventional fluid. Nanofluids are the potential fluids which are using for the transfer of heat in order to enhance the performance the existing heat exchanger. This recently introduced type of cooling fluids has shown the fascinating results and behavior which are superior to convention fluid. In this paper, the behavior of Cu-Water nanofluid and its effect on the performance of single pass counter-flow shell and tube type heat exchanger has been observed analytically and also the comparison is made between the Cu-Water nanofluid and conventional base fluid i.e. water. In this present paper, an analytical investigation is been carried out for the optimization of the performance of heat exchanger at different concentration of copper nanoparticles (up to 5%) and at different operating parameters. The conclusion of this paper is that the overall heat transfer coefficient and the thermal conductivity of nanofluid increases with the increase in concentration of nanoparticles and which in turn lead to higher rate of heat transfer with enhancement in the effectiveness of heat exchanger. The increase in the concentration of copper nanoparticles also increases the pumping power up to 32% at 5% concentration of copper nanoparticles.

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