CFD Analysis of Vertical Closed Loop Pulsating Heat Pipe with 10 Turns
CLPHP is a device which combines the principles of both thermal conductivity and phase transition to efficiently manage the transfer of heat between two solid interfaces. Geometry of CLPHP with 10 turns was modeled having Inside and Outside diameter of pipe are 3 mm and 4 mm respectively. Length of pipe is 450 mm and 12 mm is the gap between the pipes. Total length of the pipe is taken as 6 m. For achieving better results grid independent study is done, element size .5 mm , 2 mm and 3 mm are selected . Different kind of mesh has been checked for simulations and 0.5 mm element size mesh is found optimum and selected for further analysis. Numerical model developed is very helpful in observing the working phenomenon of CLPHP. Mostly analysis of closed loop pipe was performed in vertical position with refrigerants having different filling ratio. When the filling ratio of the CLPHP was marked as 50% highest performance curve was obtained. Thermal contact resistance offered by the CLPHP at this filling ratio was found to be minimum leading to high performance of structure.
Article Details
Unique Paper ID: 147311

Publication Volume & Issue: Volume 5, Issue 7

Page(s): 40 - 44
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Volume 6 Issue 2

Last Date 25 July 2019

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