Publication: Numerical investigation of pulsating heat pipe performance with nanofluids
Date
2018
Authors
Sorna Kailash Kannan Kurukkal
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Abstract
This thesis reports the numerical investigation of the pulsating heat pipe (PHP) performance using nanofluids as the working fluid instead of the conventional pure water, where the Computational Fluid Dynamics (CFD) software known as ANSYS is used as the tool to investigate the heat pipe's performance by measuring four parameters which are the liquid pressure, liquid temperature, surface temperature and also the velocity magnitude. Besides, one of the main factor affecting the pulsating heat pipe performance is also studied which is the varying heat inputs applied at the evaporator region with a value of 10W, 30W, 50W, 70W and 100W used in the present study. Multiple validation using previous published papers by researches were performed to ensure the investigation were on right path by comparing the results obtained from the simulation performed on PHP charged with water. The temperature and pressure of the working fluids, the surface temperature of the PHP and the velocity vector is obtained through the simulation results for the varying heat inputs and also for the different working fluids. The nanofluids used in this study are Silicon dioxide nanofluid, Aluminium oxide nanofluid and Diamond-water nanofluid and the nanofluid with the best heat transfer characteristics is determined in order to select as the working fluid that would help improve the efficiency of the pulsating heat pipe. With the knowledge obtained from this study, the thermal performance of PHP can be enhanced and the overheat issues among electronic equipment can be resolved.
Description
TJ264.S67 2018
Keywords
Heat pipes , Nanofluids