An effective design option for a cooling system is to use a two-phase pumped cooling loop to simultaneously satisfy the temperature uniformity and high heat flux requirements. A reciprocating-mechanism driven heat loop (RMDHL) is a novel heat transfer device that could attain a high heat transfer rate through a reciprocating flow of the two-phase working fluid inside the heat transfer device. Although the device has been tested and validated experimentally, analytical or numerical study has not been undertaken to understand its working mechanism and provide guidance for the device design. The objective of this paper is to develop a numerical model for the RMDHL to predict its operational performance under different working conditions. The developed numerical model has been successfully validated by the existing experimental data and will provide a powerful tool for the design and performance optimization of future RMDHLs. The study also reveals that the maximum velocity in the flow occurs near the wall rather than at the center of the pipe, as in the case of unidirectional steady flow. This higher velocity near the wall may help to explain the enhanced heat transfer of an RMDHL.
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December 2016
Research-Article
A Numerical Model of a Reciprocating-Mechanism Driven Heat Loop for Two-Phase High Heat Flux Cooling
Olubunmi Popoola,
Olubunmi Popoola
Department of Mechanical and
Materials Engineering,
Florida International University,
Miami, FL 33174
Materials Engineering,
Florida International University,
Miami, FL 33174
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Ayobami Bamgbade,
Ayobami Bamgbade
Department of Mechanical and
Materials Engineering,
Florida International University,
Miami, FL 33174
Materials Engineering,
Florida International University,
Miami, FL 33174
Search for other works by this author on:
Yiding Cao
Yiding Cao
Department of Mechanical and
Materials Engineering,
Florida International University,
Miami, FL 33174
Materials Engineering,
Florida International University,
Miami, FL 33174
Search for other works by this author on:
Olubunmi Popoola
Department of Mechanical and
Materials Engineering,
Florida International University,
Miami, FL 33174
Materials Engineering,
Florida International University,
Miami, FL 33174
Ayobami Bamgbade
Department of Mechanical and
Materials Engineering,
Florida International University,
Miami, FL 33174
Materials Engineering,
Florida International University,
Miami, FL 33174
Yiding Cao
Department of Mechanical and
Materials Engineering,
Florida International University,
Miami, FL 33174
Materials Engineering,
Florida International University,
Miami, FL 33174
Contributed by the Heat Transfer Division of ASME for publication in the JOURNAL OF THERMAL SCIENCE AND ENGINEERING APPLICATIONS. Manuscript received January 29, 2016; final manuscript received May 23, 2016; published online July 27, 2016. Assoc. Editor: Amir Jokar.
J. Thermal Sci. Eng. Appl. Dec 2016, 8(4): 041006 (12 pages)
Published Online: July 27, 2016
Article history
Received:
January 29, 2016
Revised:
May 23, 2016
Citation
Popoola, O., Bamgbade, A., and Cao, Y. (July 27, 2016). "A Numerical Model of a Reciprocating-Mechanism Driven Heat Loop for Two-Phase High Heat Flux Cooling." ASME. J. Thermal Sci. Eng. Appl. December 2016; 8(4): 041006. https://doi.org/10.1115/1.4034059
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