Heat transfer performance of boiling jet array impingement on micro-grooved surfaces

Jet array impingement heat transfer is investigated for two phase forced convection of water at atmospheric pressure and subcooling of 7°C with flow rates up to 660mL/min. A jet array consisting of nine 1mmjets with 5mminter-jet spacing and a 2mmjet to target spacing was employed to cool a 15mmby 15mmheated surface. A linear micro-groove and a radial micro-groove surface were investigated and compared to a flat surface. The results show that …