Numerical study of low concentration nanofluids pool boiling, investigating of boiling parameters introducing nucleation site density ratio

Abstract

The present study consists of a pool boiling model modified for nanofluids. The effect of particle size, surface roughness were considered in this work. Nucleation site density ratio was introduced and a correlation was derived based on literature experimental data. Moreover, heat flux partitioning model was employed to evaluate proposed model for boiling heat transfer. The validity was assessed by comparing the results with experimental data. Nucleation site density ratio can predict heat transfer enhancement of nanofluids.