The effect of axial conduction on heat transfer in a liquid microchannel flow

Kevin D. Cole, Barbaros Çetin

Research output: Contribution to journalArticle

32 Citations (Scopus)

Abstract

Analysis is presented for conjugate heat transfer in a parallel-plate microchannel. Axial conduction in the fluid and in the adjacent wall are included. The fluid is a constant property liquid with a fully-developed velocity distribution. The microchannel is heated by a uniform heat flux applied to the outside of the channel wall. The analytic solution is given in the form of integrals by the method of Green's functions. Quadrature is used to obtain numerical results for the local and average Nusselt number for various flow velocities, heating lengths, wall thicknesses, and wall conductivities. These results have application in the optimal design of small-scale heat transfer devices in areas such as biomedical devices, electronic cooling, and advanced fuel cells.

Original languageEnglish (US)
Pages (from-to)2542-2549
Number of pages8
JournalInternational Journal of Heat and Mass Transfer
Volume54
Issue number11-12
DOIs
StatePublished - May 1 2011

Fingerprint

microchannels
Microchannels
heat transfer
Electronic cooling
Heat transfer
conduction
Fluids
Liquids
liquids
Nusselt number
Velocity distribution
Green's function
Flow velocity
Heat flux
Fuel cells
Heating
fluids
parallel plates
quadratures
fuel cells

Keywords

  • Conjugate heat transfer
  • Laminar flow
  • Microheat exchanger
  • Microtube
  • Wall conduction

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes

Cite this

The effect of axial conduction on heat transfer in a liquid microchannel flow. / Cole, Kevin D.; Çetin, Barbaros.

In: International Journal of Heat and Mass Transfer, Vol. 54, No. 11-12, 01.05.2011, p. 2542-2549.

Research output: Contribution to journalArticle

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