Experimental thermal conductivity of ethylene glycol and water mixture based low volume concentration of A1_2O_3 and CuO nanofluids

摘要

Thermal conductivity of ethylene glycol and water mixture based A1_2O_3 and CuO nanofluids has been estimated experimentally at different volume concentrations and temperatures. The base fluid is a mixture of 50:50% (by weight) of ethylene glycol and water (EG/W). The particle concentration up to 0.8% and temperature range from 15 ℃-50 ℃ were considered. Both the nanofluids are exhibiting higher thermal conductivity compared to base fluid. Under same volume concentration and temperature, CuO nanofluid thermal conductivity is more compared to A1_2O_3 nanofluid. A new correlation was developed based on the experimental data for the estimation of thermal conductivity of both the nanofluids.