Optimization of microchannel geometry for direct chip cooling using single phase heat transfer

Harshal Upadhye
Satish Kandlikar

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


Direct cooling of an electronic chip of 25mm x 25mm in size is analyzed as a function of channel geometry for single-phase flow of water through small hydraulic diameters. Fully developed laminar flow is considered with both constant wall temperature and constant channel wall heat flux boundary conditions. The effect of channel dimensions on the pressure drop, the outlet temperature of the cooling fluid and the heat transfer rate are presented. The results indicate that a narrow and deep channel results in improved heat transfer performance for a given pressure drop constraint.