|HEAT TRANSFER PERFORMANCE EVALUATION OF FINNED TUBE DOUBLE PIPE HEAT EXCHANGER USING CFD|
|Prof. Pushparaj Singh, Avanish Kumar|
|Cite This Article:|
HEAT TRANSFER PERFORMANCE EVALUATION OF FINNED TUBE DOUBLE PIPE HEAT EXCHANGER USING CFD, International Journal of Innovative Research in Technology(www.ijirt.org) ,ISSN: 2349-6002 ,Volume 6 ,Issue 1 ,Page(s):426-432 ,June 2019 ,Available :IJIRT148362_PAPER.pdf
|Fins, Heat exchanger, double pipe, Nano fluids, Heat transfer, ANSYS 14.5, Overall heat transfer coefficient, Nusselt number.|
|Development of modern engineering applications demands the heat transfer enhancement. At the same time, efficient heat transfer equipment is necessary to reduce energy consumption and improve energy savings. Heat transfer enhancement is both very attractive and challenging in the research and industry fields. It has a fundamental role in improving energy efficiency, as well as in developing thermal systems with high performances. Heat transfer enhancement techniques can be found in different engineering applications, such as solar energy systems, thermal control, heat exchangers, automotive cooling, refrigeration, chemical process, etc. They are classified as passive methods and active methods. In the first method, no direct application of external power is required, whereas in the second method an external power source is necessary. The effectiveness of heat transfer enhancement techniques is strongly related to the heat transfer mechanisms. In present work attempts are made to enhance the heat transfer rate in double pipe heat exchangers by providing semi-circular fin on the tube. For this a double pipe heat exchanger were used in which tubes with six fins are used. Modelling is done using ANSYS. Nanofluid such as Al2O3-H2O is used. The CFD simulated results achieved from the use of the creating fin in tube side in double pipe heat exchanger are compared with without fin.Based on the results, providing fins on tube causes the increment of overall heat transfer coefficient which results in the enhancement of heat transfer rate of heat exchanger. The average Nusselt number for the semi-circular fin is about 1.28 times larger as compared to that without fin heat exchanger. The overall heat transfer coefficient for the semi-circular fin is about 1.07 times larger as compared to that without fin heat exchanger.|
|Unique Paper ID: 148362|
Publication Volume & Issue: Volume 6, Issue 1
Page(s): 426 - 432
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