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Efficient Multiphase Cooling System for Large Area Using Multiple Jet/Spray

[+] Author Affiliations
Mita Sarkar, R. Panneer Selvam, Mark Kuss, Juan C. Balda

University of Arkansas, Fayetteville, AR

Paper No. HT2009-88314, pp. 335-343; 9 pages
doi:10.1115/HT2009-88314
From:
  • ASME 2009 Heat Transfer Summer Conference collocated with the InterPACK09 and 3rd Energy Sustainability Conferences
  • Volume 3: Combustion, Fire and Reacting Flow; Heat Transfer in Multiphase Systems; Heat Transfer in Transport Phenomena in Manufacturing and Materials Processing; Heat and Mass Transfer in Biotechnology; Low Temperature Heat Transfer; Environmental Heat Transfer; Heat Transfer Education; Visualization of Heat Transfer
  • San Francisco, California, USA, July 19–23, 2009
  • Conference Sponsors: Heat Transfer Division
  • ISBN: 978-0-7918-4358-1 | eISBN: 978-0-7918-3851-8
  • Copyright © 2009 by ASME

abstract

Jet/spray cooling is a way of efficiently removing heat from a hot surface like in the back plate for high power electronic devices. In the present work, a close loop liquid jet/spray setup with a novel effluent/spent liquid removal system is established for large area cooling. A 4×4 nozzle array is used to generate the spray/jet targeting the heat source area of 4 (2×2) cm2 . Flourinert FC-72™ is used as coolant liquid. The thermal performance data for multi-jet/spray cooling in a closed and confined system are obtained at various liquid temperatures and flow rates. The experimental work illustrates the multi-jet cooling system can reach critical heat fluxes up to 101 W/cm2 . The results showed that the heat flux is increased with liquid sub-cooled temperature and flow rates in single phase as well as in phase change zone. It is further observed that the critical heat flux (CHF) increases with liquid sub-cooled temperature and flow rates.

Copyright © 2009 by ASME

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