Abstract
A systematic experimental investigation was conducted to evaluate the heat Transfer characteristics of a copper-nickel multi tube with corrugated copper fins in a cross flow heat exchanger. The heat transfer rate from a tube can be augmented either by increasing the surface area, by number of fins or by creating turbulence in the flow. Experiment was carried out under the copper fin tube type heat exchanger in which no. of fins is mounted along the full length of heat exchanger. The effect of no. of fins on a full length heat exchanger on the heat transfer coefficient was experimentally investigated in case of different mass flow rate of water and air. The performance evaluation of cross flow heat exchanger with copper fins was carried out for water temperature varying from 38°C to 64°C and water velocity 0.07735m/s to 0.271m/s and air velocity 3.194m/s to 14.52m/s. It was found that on the basis of different flow rate of water and air heat transfer coefficient increases constantly on the water and air side respectively.
Highlights
Kaptan and Buyruket (2008) have investigated fouling on Improvement of heat transfer is of major practical heat exchanger and its effects of fouling on heat transfer importance in all industries
Attempt should be efficient for cryogenic cross counter flow coiled finned made to increase heat transfer rate at lower increase in tube heat exchangers
Several approaches had been done to Demir (2008) have developed optimum design parameter solve this problem
Summary
Kaptan and Buyruket (2008) have investigated fouling on Improvement of heat transfer is of major practical heat exchanger and its effects of fouling on heat transfer importance in all industries. The investigation has been carried out finned-tube, liquid cross flow heat exchangers for the step for water temperature varying from 38 oC to 64 oC and change in the inlet temperature of the hot fluid. Two thermometer pockets are provided equal mass flow rate of water basis heat transfer on water just after the delivery of the pump one by pass line is and air side first increases from 10-15 lit/min. Overall heat transfer co- efficient over the following range of inputs parameters and (Uoverall) increases gradually
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