Abstract
Abstract In this work, the helical fins effect in the performance of a double pipe heat exchanger has been examined experimentally. The performance in terms of average heat transfer rate, heat transfer coefficient and effectiveness of heat exchanger in plain inner pipe is evaluated and compared with helical fins installed heat exchanger over inner pipe. In this experimental analysis, hot fluid flow rate is varied in range from 0.01 kg/s to 0.05 kg/s and hot fluid temperature at inlet is kept constant as 80 °C. The result shows the heat transfer coefficient is increased with introduction of fins. Average rate of heat transfer and effectiveness of heat exchanger are increased to 38.46% and 35% respectively at higher flow rate.
Published Version
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