May 1, 2010Journal of Applied Physics
Experimental investigation on thermal conductivity of nanofluids containing graphene oxide nanosheets
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Implication
Experimental study reveals enhanced thermal conductivity in graphene oxide nanofluids across diverse base liquids, indicating significant heat transfer along nanosheet planes.
Key Points
- To investigate the thermal conductivity enhancements of nanofluids formulated with graphene oxide nanosheets across various base fluids and operating temperatures.
- Prepared nanofluids by dispersing graphene oxide nanosheets at a loading concentration of up to 5.0 vol % in distilled water, propyl glycol, and liquid paraffin.
- Measured thermal conductivity changes across varying test temperatures for each base fluid mixture.
- Thermal conductivity enhancement ratios at 5.0 vol % loading reached 30.2% in distilled water, 62.3% in propyl glycol, and 76.8% in liquid paraffin.
- Enhancement ratios remained nearly constant across tested temperatures but decreased as the base fluid's baseline thermal conductivity increased.
- In-plane heat transport across graphene oxide nanosheets served as the primary mechanism driving conductivity gains.
Cite This Study
Yu et al. (2010) studied this question.