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

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2011-05-01

Author

Cole, Kevin D.
Cetin, Barbaros

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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.

Subject Keywords

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

URI

https://hdl.handle.net/11511/65379

Journal

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER

DOI

https://doi.org/10.1016/j.ijheatmasstransfer.2011.02.007

Collections

Department of Mechanical Engineering, Article

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Citation Formats

K. D. Cole and B. Cetin, “The effect of axial conduction on heat transfer in a liquid microchannel flow,” INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, pp. 2542–2549, 2011, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/65379.