The Heat Transfer Characteristics of a Flat Loop Heat Pipe Developed for Cooling Graphics Card
Loop heat pipe is used for cooling of graphics card with high heat flux up to 80W/cm2. The evaporator and the pipes are made of copper, and ultrapure water is filled as the working .uid. To make the loop heat pipe a better performance, the evaporator is made of flat shape to reduce the contact resistance between the evaporator and the chip, and two loops of working fluid transport lines are designed to reduce the pressure drop. The heat transfer performance is tested in different orientations. The test result shows that, the loop heat pipe can start up easily, and transport large amount of heat stably. The orientation of the condenser above the evaporator gives a better performance, and filling 13g of water gives a better performance. Limited by the evaporator temperature lower than 90癈, the loop heat pipe can transport 320W when the evaporator is above the condenser, and can transport 380W when the condenser is above the evaporator.
Loop Heat Pipe Flat Evaporator Cooling of graphics card two transport lines
Dong-chuan MO Guan-sheng ZOU Shu-shen LU
School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou, 510275, China
国际会议
4th International Symposium on Heat Transfer and Energy Conservation(第四届传热与节能国际研讨会 ISHTEC2012)
广州
英文
1-3
2012-01-06（万方平台首次上网日期，不代表论文的发表时间）