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Heat Transfer Research
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Heat Transfer Research

DOI: 10.1615/HeatTransRes.2016015276
pages 827-848

NUMERICAL SIMULATION OF A BELLOWS-TYPE RECIPROCATING MECHANISM-DRIVEN HEAT LOOP (RMDHL)

Olubunmi T. Popoola
Department of Mechanical and Materials Engineering, Florida International University, Miami, Florida 33174, USA
Soheil Soleimani
Department of Mechanical and Materials Engineering, Florida International University, Miami, Florida 33174, USA
Yiding Cao
Department of Mechanical and Materials Engineering, Florida International University, Miami, Florida 33174

ABSTRACT

A bellows-type Reciprocating Mechanism-Driven Heat Loop (RMDHL) could attain a high heat transfer rate through reciprocating flow of the working fluid inside a heat transfer device while maintaining substantial temperature uniformity over its evaporator section. The objective of this paper is to numerically simulate a bellows-type RMDHL to predict its operational performance under different working conditions as well as a conventional dynamic pump-driven heat loop (DPDHL) as a benchmark for comparison. The numerical results are also compared with relevant experimental data with good agreement. The results indicate that the bellows-type RMDHL can meaningfully reduce the peak temperature of an electronic device and result in a significantly more uniform temperature across the electronic device. Considering the advantage of coolant leakage free for electronics-related applications, the single-phase bellows-type RMDHL could be an alternative to a conventional Liquid Cooling System (LCS) for electronic cooling applications.


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