Optimized expanding microchannel geometry for flow boiling

Mark J. Miner, Patrick Phelan, Brent A. Odom, Carlos A. Ortiz, Ravi S. Prasher, Jon A. Sherbeck

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

This study discusses the simulation of flow boiling in a microchannel and numerically predicts the effects of channel geometry variation along the flow direction. Experimental studies by Pan and collaborators and suggestions from Mukherjee and Kandlikar have generated interest in expanding the cross section of a microchannel to improve boiling heat transfer. The motivation for this geometry change is discussed, constraints and model selection are reviewed, and Revellin and Thome's critical heat flux criterion is used to bound the simulation, via matlab, of separated flow in a heated channel. The multiphase convective heat-transfer coefficient is extracted from these results using Qu and Mudawar's relationship and is compared to reported experimental values. Expanding channel geometry permits higher heat rates before reaching critical heat flux.

Original languageEnglish (US)
Article number042901
JournalJournal of Heat Transfer
Volume135
Issue number4
DOIs
StatePublished - 2013

Fingerprint

microchannels
Microchannels
boiling
Boiling liquids
Geometry
Heat flux
heat flux
geometry
separated flow
convective heat transfer
heat transfer coefficients
Heat transfer coefficients
suggestion
simulation
heat transfer
Heat transfer
heat
cross sections

ASJC Scopus subject areas

  • Mechanical Engineering
  • Mechanics of Materials
  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Miner, M. J., Phelan, P., Odom, B. A., Ortiz, C. A., Prasher, R. S., & Sherbeck, J. A. (2013). Optimized expanding microchannel geometry for flow boiling. Journal of Heat Transfer, 135(4), [042901]. https://doi.org/10.1115/1.4023260

Optimized expanding microchannel geometry for flow boiling. / Miner, Mark J.; Phelan, Patrick; Odom, Brent A.; Ortiz, Carlos A.; Prasher, Ravi S.; Sherbeck, Jon A.

In: Journal of Heat Transfer, Vol. 135, No. 4, 042901, 2013.

Research output: Contribution to journalArticle

Miner, MJ, Phelan, P, Odom, BA, Ortiz, CA, Prasher, RS & Sherbeck, JA 2013, 'Optimized expanding microchannel geometry for flow boiling', Journal of Heat Transfer, vol. 135, no. 4, 042901. https://doi.org/10.1115/1.4023260
Miner, Mark J. ; Phelan, Patrick ; Odom, Brent A. ; Ortiz, Carlos A. ; Prasher, Ravi S. ; Sherbeck, Jon A. / Optimized expanding microchannel geometry for flow boiling. In: Journal of Heat Transfer. 2013 ; Vol. 135, No. 4.
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