Critical Heat Flux in Nanofluids at Quasi-Stationary and Stepwise Heat Generation

In this paper results of an experimental study on critical heat flux in nanofluid at quasi-stationary and stepwise heat generation are presented. Freon R21 with addition of 0.0077 vol.% of SiO 2 nanoparticles was used as test fluid. Boiling curves, critical heat fluxes and temperatures of boiling initiation were obtained for pure fluid and for nanofluid. It was shown that the addition of nanoparticles didn’t affect heat transfer at pool boiling, but critical heat fluxes at quasi-stationary and stepwise heat generation were increased.