Experiment Study of the Influence of Spray Height and Pressure on the Spray Cooling Performance

Abstract

Spray cooling is widely used in today's high power density and heat electronic devices because of its high heat transfer capacity and uniform cooling temperature. In this paper, the spray cooling performance is studied experimentally using a solid-cone nozzle and deionized water as a cooling medium, the optimum spray height of is 10mm for heating surface diameter as 16mm. The maximum heat flux in the experiments is up to 350W/cm2 on the heating surface (diameter is 16mm). The maximum heat transfer coefficient is up to 6.2W/(cm2·K). The experimental results show that the spray height is the main factor affecting the spray performance.