Investigation of Thermophysical Properties of Io Nanofluids Containing Multi-Walled Carbon Nanotubes and Graphene

Thermophysical properties of base ionic liquid (C10H19F6N2P) (IL) and Io NanoFluids (INF) containing different contents of (0.05, 0.1, and 0.5 wt%) MultiWalled Carbon NanoTubes (MWCNTs) and Graphene (Gr) were measured experimentally. INF exhibited augmentation in thermal conductivity, viscosity, and heat capacity with respect to the base fluid. Maximum thermal conductivity breakthrough was detected at 39%, 48% of MWCNT-IL, and 0.5wt% of Gr-IL, respectively. Eventually, the experimental viscosity and thermal conductivity data were fitted with the existing theoretical models. The findings highlighted that the viscosity of MWCNTs-IL and Gr-IL was in unison with the particle aggregation effect (Krieger-Dougherty model) and both INF effective thermal conductivity are prognosticated by the interfacial layer approach with sufficient accuracy.