论文部分内容阅读
将高传热性能的Cu-水纳米流体作为换热工质引入射流冲击冷却技术,设计并搭建了射流冲击冷却系统,测试了该系统的换热性能和系统压降,研究了纳米粒子体积份额、入口射流速度以及射流冲击高度对系统换热性能的影响。实验结果表明,在液体中添加纳米粒子、增加射流速度、选取合适的射流冲击高度可以有效提高射流冲击冷却效果,且少量纳米粒子的加入并未引起系统压降的明显变化。
The high heat transfer properties of Cu-water nanofluids as a heat transfer medium into the jet impact cooling technology, design and set up jet impact cooling system, the system of heat transfer performance and system pressure drop, studied the volume fraction of nanoparticles , Inlet jet velocity and jet impact height on the heat transfer performance of the system. The experimental results show that the addition of nano-particles to the liquid to increase the jet velocity and select the appropriate jet impact height can effectively improve the jet impact cooling effect, and the addition of a small amount of nanoparticles did not cause a significant change in the pressure drop of the system.