Micro-channel jet cooling system for high heat flux chips

Tian Hao and Cao Zhirui

2017.10.12

Designs a submerged micro-channel multi-nozzle jet cooling system with water as the working fluid and applies it to heat release of high heat flux chips. Presents the principle of impinging jet, the experimental device and experimental conditions in detail. The experimental results show that the average surface temperature of the CPU decreases linearly with the increase of the jet velocity at the same injection space, and the average surface coefficient of heat transfer of the CPU increases linearly with the increase of the jet velocity. At the same jet velocity, the  average surface temperature and the average surface coefficient of heat transfer are almost unchangeable with the injection space, and at the same jet flow, the number of nozzles has no significant effect on the average surface coefficient of heat transfer and temperature of the impact surface. It is unnecessary theoretically to operate refrigerating equipment by applying the impinging jet cooling device to the air conditioning system of data center.