Microchannels are used in applications where large amount of heat is produced. Phase change material (PCM) slurries can be used as a heat transfer fluid in microchannels as they provide increased heat capacity during the melting of phase change material. For the present numerical investigation, performance of a nano-encapsulated phase change material slurry in a manifold microchannel heat sink was analyzed. The slurry was modeled as a bulk fluid with varying specific heat. The temperature field inside the channel wall is solved three dimensionally and is coupled with the three dimensional velocity and temperature fields of the fluid. The model includes the microchannel fin or wall effect, axial conduction along the length of the channel, developing flow of the fluid and not all these features were included in previous numerical investigations. Influence of parameters such as particle concentration, inlet temperature, melting range of the PCM, and heat flux is investigated, and the results are compared with the pure single phase fluid.
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Numerical Investigation of Flow and Heat Transfer Performance of Nano-Encapsulated Phase Change Material Slurry in Microchannels
Sarada Kuravi,
Sarada Kuravi
Department of Mechanical, Materials and Aerospace Engineering,
University of Central Florida
, Orlando, FL 32816-2450
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Krishna M. Kota,
Krishna M. Kota
Department of Mechanical, Materials and Aerospace Engineering,
University of Central Florida
, Orlando, FL 32816-2450
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Jianhua Du,
Jianhua Du
Department of Mechanical, Materials and Aerospace Engineering,
University of Central Florida
, Orlando, FL 32816-2450
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Louis C. Chow
Louis C. Chow
Department of Mechanical, Materials and Aerospace Engineering,
University of Central Florida
, Orlando, FL 32816-2450
Search for other works by this author on:
Sarada Kuravi
Department of Mechanical, Materials and Aerospace Engineering,
University of Central Florida
, Orlando, FL 32816-2450
Krishna M. Kota
Department of Mechanical, Materials and Aerospace Engineering,
University of Central Florida
, Orlando, FL 32816-2450
Jianhua Du
Department of Mechanical, Materials and Aerospace Engineering,
University of Central Florida
, Orlando, FL 32816-2450
Louis C. Chow
Department of Mechanical, Materials and Aerospace Engineering,
University of Central Florida
, Orlando, FL 32816-2450J. Heat Transfer. Jun 2009, 131(6): 062901 (9 pages)
Published Online: March 31, 2009
Article history
Received:
December 31, 2007
Revised:
October 13, 2008
Published:
March 31, 2009
Citation
Kuravi, S., Kota, K. M., Du, J., and Chow, L. C. (March 31, 2009). "Numerical Investigation of Flow and Heat Transfer Performance of Nano-Encapsulated Phase Change Material Slurry in Microchannels." ASME. J. Heat Transfer. June 2009; 131(6): 062901. https://doi.org/10.1115/1.3084123
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