Single-Phase Forced Convection Heat Transfer in Micro Rectangular Channels

Increase in the integration and package density of aviation electronic equipment provides severe challenge to heat control for electronic components, yet the microchannel radiator offers an efficient method for solving the problem of cooling electronic chips and devices. In this paper, 6 micro rectangle channels with different sizes were designed and fabricated; the experiment of single-phase forced convection heat transfer was conducted with solution of CH5OH, the most commonly used coolant for aviation electronic equipment, flowing through those microchannels. The influences of liquid velocity, degree of coolant super cooling, and configuration of microchannels on the heat transfer characteristics were analyzed respectively.