Experimental Study Of The Surfactant And Nanofluid Effect On The Heat Transfer Performance Of An Oscillating Heat Pipe

Oscillating heat pipe (OHP), considered as one of the most promising technology for high heat flux dissipation, has gained widely attention in the field of heat transfer. However, the combined effect of surfactant and nanofluid on the performance of OHP is rarely investigated. Therefore, two aspects of work around this problem were studied in this paper. Firstly, to understand the effect of surfactant on OHP, an experiment was conducted. Secondly, the combined effect of surfactant and nanofluid was studied in another experiment. The conclusions demonstrate as follows:(1) Surface tension of water could be reduced obviously by Triton X-100 and CTAB. The figure had changed from 72.75 mN/m to 30.60 mN/m when Triton X-100 in water reached 100ppm.(2) OHP performance could not be strengthened by surfactant. When heating power is 200 W and angle is 90 degrees, heat resistance of triton X-100 solution with 300 PPM is 0.386℃ /W, while the water is 0.212℃ /W.(3) The heat transfer performance could be greatly enhanced after the addition of nano-particles. The surface modification caused by nano-particles is the main reason of performance improvement.The current research clarified the impact of surfactant and nano-particles on OHP heat transfer performance, and make a foundation for the development of high-performance OHP.