Nanofluid effect on the optimum filling ratio of an oscillating heat pipe

作者：Ji Yu Long^*; Xu Chen; Su Feng Min; Ma Hong Bin

来源：Journal of Engineering Thermophysics, 2012, 33(11): 1981-1984.

• Enhancement effects
• Filling ratio
• Heat Transfer enhancement
• Heat transfer performance
• Input power
• Nanofluids
• Oscillating heat pipes
• Volume concentration

The effect of Al2O3/H2O nanofluid on the heat transfer performance of an oscillating heat pipe was investigated experimentally. The cylinder like Al2O3 particle with the particle size of 80 nm was thrown into water with the volume concentration of 0.05% to prepare the Al2O3/H2O nanofluid. The experimental results show that 1) the nanofluid can enhance the heat transfer performance of the OHP, and the enhancement effect decrease as the input power increase; 2) the optimum filling ratio of the OHP decreased from 40% to 30%; 3) the enhancement effect of the nanofluid decrease as the filling ratio increase.

• 出版日期2012