Analysis and optimization on microjet cooling system for high power LED

作者：Luo Xiao Bing^*; Yang Jiang Hui; Gan Zhi Yin; Liu Sheng

来源：Journal of Engineering Thermophysics, 2008, 29(11): 1909-1914.

• Cooling effects
• Experimental tests
• High power LED
• High powers
• Micro jet
• Micro jets
• Numerical simulations
• Simulation models
• Test results
• Thermal analysis

Preliminary experimental tests on a close-looped micro jet cooling system for high power LEDs were conducted. The test results and simple analysis demonstrate that the system have room for improvement. In order to improve the system, numerical simulation was used for structrual optimization. The simulation model was compared with the experimental results to prove the feasibility of this model. By using the simulation model, two kinds of micro jets were investigated, it is found that the micro jet that has one single inlet and two outlets can achieve good cooling effect. Compared with the present cooling system in the experimental prototype, the maximal temperature of LED substrate cooled by the optimized micro jet cooling system was 23 K lower.

• 出版日期2008
• 单位华中科技大学