Category: Transient Line Source
Abstract: Kerosene graphene nanoplatelets (GNP) nanofluids have a potential use in regenerative cooling of semi-cryogenic rocket thrust chamber. Before they can be used, more must be known about this substance's physical qualities. This study focuses on finding the effective thermal conductivity of this type of nanofluid, specifically at .005, 0.05 and 0.2 weight percentage (wt%) and 300, 500 and 750 mm2/g, specific surface area (SSA) of GNP. These samples are prepared using ultrasonication and steric stabilization technique with oleylamine as a surfactant. The thermal conductivity of the samples are measured with both the transient line source and the transient plane source, with a maximum variation of 3% between methods. Continued measurement of the thermal conductivity over time establishes the stability of the nanofluid.
Reference: October 2015 Conference: 23rd national and 1st international ISHMT-ASTFE conference 2015At: LPSC Trivandrum