Dependency of Heat Transfer Rate on the Brinkman Number in Microchannels

TL;DR

This paper investigates how the heat transfer rate in microchannels depends on the Brinkman number, providing a new correlation to aid in designing microscale cooling systems for high-density electronics.

Contribution

It introduces a novel correlation between heat transfer rate and Brinkman number specific to microchannels, enhancing predictive capabilities for microscale cooling device design.

Findings

Established a new correlation between heat transfer rate and Brinkman number.

Demonstrated the potential application of the correlation in microchannel cooling design.

Improved understanding of heat transfer mechanisms at microscale.

Abstract

Heat generation from electronics increases with the advent of high-density integrated circuit technology. To come up with the heat generation, microscale cooling has been thought as a promising technology. Prediction of heat transfer rate is crucial in design of microscale cooling device but is not clearly understood yet. This work proposes a new correlation between heat transfer rate and Brinkman number which is nondimensional number of viscosity, flow velocity and temperature. It is expected that the equation proposed by this work can be useful to design microchannel cooling device.