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Experimental Analysis of Concentric Heat Exchanger with Dimpled Tube

Lokesh R. Dhumne, Ankit S. Kulkarni, Shruti Vedpathak, Ramesh K. Kawade, Shrikant Kathwate

Abstract


In this work, an experimental and CFD analysis of concentric heat exchangers with smooth and
spherical dimple pipes in different mass streams with water as a working medium is presented.
Heat transfer technology refers to various methods used to increase the heat transfer rate
without significantly affecting the overall system performance. Over the past decade, several
studies have reported indirect technology for heat transfer. The present study on the change of
the inner tube to the concentric tubular with dimpled tube. The effect of the tubing on the heat
transfer rate, heat transfer coefficient and efficiency are compared with the simple hose for
different flow rates. Experimental and CFD results show that the use of water in a spherical,
binary tube increases the flow rate, overall heat transfer coefficient and also efficiency in
comparison to a simple tube.


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DOI: https://doi.org/10.37591/jotea.v7i3.4493

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