Numerical Investigation of Heat Transfer Enhancement in a Copper Sphere-based Decay Heat Exchanger with Paraffin Wax using CFD Simulation
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Abstract
A detailed numerical analysis of the heat transfer performance of a passive decay heat exchanger system is carried out in the present study. Two different configurations that are taken into consideration in the study are spheres filled with paraffin wax and spheres that are constructed of solid copper. Numerical simulations were carried out with the assistance of ANSYS Fluent. The thermal behaviour and efficiency of the heat exchanger system are evaluated under a variety of conditions with the intention of maximising the efficiency of the processes that are involved in the transfer of heat within the system. The temperature contours revealed dynamic phase change progression, with elevated temperatures near the heating element and nuanced thermal interactions with the copper spheres and phase change material.
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