The magnetic field effect on the oscillating motion and heat transfer in an oscillating heat pipe (OHP) containing magnetic nanofluid was investigated experimentally. The nanofluid consists of distilled water and Dysprosium (III) oxide nanoparticles with sizes less than 100 nm. A magnetic field was applied to the evaporating section of the OHP by using the permanent magnet. The heat pipes charged with magnetic nanofluids at mass ratios of 0.1%, 0.05%, and 0.01%, respectively, were tested. In addition, the effects of orientation and input power ranging from 50 W to 250 W on the heat transport capability of the heat pipe were investigated. The experimental results demonstrate that the magnetic field can affect the oscillating motions and enhance the heat transfer performance of the magnetic nanofluid OHP. The magnetic nanoparticles in a magnetic field can reduce the startup power of oscillating motion and enhance the heat transfer performance in a low input power.
- Heat Transfer Division
Experimental Investigation of Magnetic Field Effect on the Magnetic Nanofluid Oscillating Heat Pipe
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Zhao, N, Zhao, D, & Ma, H. "Experimental Investigation of Magnetic Field Effect on the Magnetic Nanofluid Oscillating Heat Pipe." Proceedings of the ASME 2012 Heat Transfer Summer Conference collocated with the ASME 2012 Fluids Engineering Division Summer Meeting and the ASME 2012 10th International Conference on Nanochannels, Microchannels, and Minichannels. Volume 2: Heat Transfer Enhancement for Practical Applications; Fire and Combustion; Multi-Phase Systems; Heat Transfer in Electronic Equipment; Low Temperature Heat Transfer; Computational Heat Transfer. Rio Grande, Puerto Rico, USA. July 8–12, 2012. pp. 385-389. ASME. https://doi.org/10.1115/HT2012-58170
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