Heat transfer analysis for multiple jet cooling of high temperature electronics target

TLDR: In this article, the authors dealt with multiple jet cooling experiments on a heated target and found that the higher number of jets with 16mm pitch indicates better cooling performance and is annualized by Nusselt number which is measure of cooing performance.

Abstract: Electronics cooling has wide area of research and have been experimented with different techniques. Present paper deals with multiple jet cooling experiments on heated target. These can be applicable for high heat dissipating objects or targets from power electronics or electrical section. Two type of jet plates are used viz. four jets in a plate and nine jets in a plate. The specified target is hot surface cooled by convective heat transfer by using jets, which is impinged using air as working fluid. Pitch indicating distance between two adjacent jets is varying from 15mm to 30 mm gradually for both the types of jet plates. All experiments are performed at Reynolds Number of 2000. The target to jet height is also varied from 4mm to 16mm. The higher number of jets with 16mm pitch indicates better cooling performance and is annualized by Nusselt number which is measure of cooing performance.