Research efforts on flow boiling in microchannels were focused on stabilizing the flow during the early part of the last decade. After achieving that goal through inlet restrictors and distributed nucleation sites, the focus has now shifted on improving its performance for high heat flux dissipation. The recent worldwide efforts described in this paper are aimed at increasing the critical heat flux (CHF) and reducing the pressure drop, with an implicit goal of dissipating 1 kW/cm2 for meeting the high-end target in electronics cooling application. The underlying mechanisms in these studies are identified and critically evaluated for their potential in meeting the high heat flux dissipation goals. Future need to simultaneously increase the CHF and the heat transfer coefficient (HTC) has been identified and hierarchical integration of nanoscale and microscale technologies is deemed necessary for developing integrated pathways toward meeting this objective.
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Mechanistic Considerations for Enhancing Flow Boiling Heat Transfer in Microchannels
Satish G. Kandlikar
Satish G. Kandlikar
Mechanical Engineering Department,
Rochester Institute of Technology,
Rochester, NY 14623
e-mail: sgkeme@rit.edu
Rochester Institute of Technology,
Rochester, NY 14623
e-mail: sgkeme@rit.edu
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Satish G. Kandlikar
Mechanical Engineering Department,
Rochester Institute of Technology,
Rochester, NY 14623
e-mail: sgkeme@rit.edu
Rochester Institute of Technology,
Rochester, NY 14623
e-mail: sgkeme@rit.edu
Contributed by the Heat Transfer Division of ASME for publication in the JOURNAL OF HEAT TRANSFER. Manuscript received January 13, 2015; final manuscript received September 2, 2015; published online October 13, 2015. Assoc. Editor: Amy Fleischer.
J. Heat Transfer. Feb 2016, 138(2): 021504 (16 pages)
Published Online: October 13, 2015
Article history
Received:
January 13, 2015
Revised:
September 2, 2015
Citation
Kandlikar, S. G. (October 13, 2015). "Mechanistic Considerations for Enhancing Flow Boiling Heat Transfer in Microchannels." ASME. J. Heat Transfer. February 2016; 138(2): 021504. https://doi.org/10.1115/1.4031648
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