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