Abstract

A bellows-type Reciprocating-Mechanism Driven Heat Loops (RMDHL) is a novel heat transfer device that could attain a high heat transfer rate through a reciprocating flow of the working fluid inside the heat transfer device. This paper investigates the possibility of applying the device for single phase liquid cooling for high performance computing. The objective of this paper is to apply the RMDHL to a liquid cooling system and compare its performance with a continuous cooling system. A Computational Fluid Dynamic (CFD) code that is validated experimentally was employed to numerically simulate both the Dynamic Pump Driven Heal Loop (DPDHL) and the reciprocating loop. To confirm the validity of the Numerical code to satisfactorily predict the reciprocating flow in the RMDHL, an experimental procedure was used to validate the Numerical Code. This work proposes an efficiency term based on the temperature uniformity and overall performance, and compare both systems based on the proposed efficiency term. It was discovered that for temperature uniformity, the RMDHL performed better than the DPHL with an efficiency of more than 30%.