Single-phase heat transfer enhancement techniques in microchannel and minichannel flows

Mark Steinke
Satish Kandlikar

Proceedings of the second international conference on microchannels and minichannels, June 17-19, 2004. The complete proceedings can be obtained at . Note: imported from RIT’s Digital Media Library running on DSpace to RIT Scholar Works in February 2014.


The single-phase heat transfer enhancement techniques are well established for conventional channels and compact heat exchangers. The major techniques include flow transition, breakup of boundary layer, entrance region, vibration, electric fields, swirl flow, secondary flow and mixers. In the present paper, the applicability of these techniques for single-phase flows in microchannels and minichannels is evaluated. The microchannel and minichannel single-phase heat transfer enhancement devices will extend the applicability of single-phase cooling for critical applications, such as chip cooling, before more aggressive cooling techniques, such as flow boiling, are considered.