Particle shape effect on heat transfer performance in an oscillating heat pipe
Open Access
- 5 April 2011
- journal article
- Published by Springer Science and Business Media LLC in Nanoscale Research Letters
- Vol. 6 (1), 296
- https://doi.org/10.1186/1556-276x-6-296
Abstract
The effect of alumina nanoparticles on the heat transfer performance of an oscillating heat pipe (OHP) was investigated experimentally. A binary mixture of ethylene glycol (EG) and deionized water (50/50 by volume) was used as the base fluid for the OHP. Four types of nanoparticles with shapes of platelet, blade, cylinder, and brick were studied, respectively. Experimental results show that the alumina nanoparticles added in the OHP significantly affect the heat transfer performance and it depends on the particle shape and volume fraction. When the OHP was charged with EG and cylinder-like alumina nanoparticles, the OHP can achieve the best heat transfer performance among four types of particles investigated herein. In addition, even though previous research found that these alumina nanofluids were not beneficial in laminar or turbulent flow mode, they can enhance the heat transfer performance of an OHP.Keywords
This publication has 16 references indexed in Scilit:
- An Investigation of Flat-Plate Oscillating Heat PipesJournal of Electronic Packaging, 2010
- Internal flow patterns on heat transfer characteristics of a closed-loop oscillating heat-pipe with check valves using ethanol and a silver nano-ethanol mixtureExperimental Thermal and Fluid Science, 2010
- Experimental investigation of cryogenic oscillating heat pipesInternational Journal of Heat and Mass Transfer, 2009
- Visual Observation of Oscillating Heat Pipes Using Neutron RadiographyJournal of Thermophysics and Heat Transfer, 2008
- Heat Transport Capability in an Oscillating Heat PipeJournal of Heat Transfer, 2008
- Thermal performance of horizontal closed-loop oscillating heat pipesApplied Thermal Engineering, 2008
- Theoretical analysis of startup of a pulsating heat pipeInternational Journal of Heat and Mass Transfer, 2007
- Closed loop pulsating heat pipes: Part A: parametric experimental investigationsApplied Thermal Engineering, 2003
- Closed loop pulsating heat pipes Part B: visualization and semi-empirical modelingApplied Thermal Engineering, 2003
- Correlation to predict heat transfer characteristics of a closed-end oscillating heat pipe at normal operating conditionApplied Thermal Engineering, 2003