The proportion of high-heat-flux servers has gradually increased with the increasing number and scale of data centers.Traditional air cooling cannot handle the heat dissipation and energy saving needs.In this regard,the liquid cooling technology with a large latent heat and high heat transfer coefficient has emerged.Research on liquid cooling systems primarily focuses on system efficiency enhancement,system comparison,and overall thermal management.Among them,the working fluid,as an important medium for heat exchange,is crucial for the liquid system performance.In this paper,selection principles of phase-change working fluid are proposed.The investigations and application progress of six types of phase-change working fluid(natural working medium,HFCs,HFOs,PFCs,HFEs,mixed working medium)are reviewed,summarized,and analyzed according to the contact modes(direct and indirect).The prospects for future research on phase-change liquid cooling fluids are presented.
关键词
数据中心/热流密度/液冷/相变工质
Key words
data center/heat flux/liquid cooling/phase-change working fluid
维普
万方数据