Low viscous ZnO–propylene glycol nanofluid: a potential coolant candidate

摘要: The rheological characteristics of ZnO–propylene glycol nanofluid have been studied over a temperature range 10–140 °C and nanoparticle concentration 0–2 vol%. addition ZnO nanoparticles (35–40 nm) to propylene (PG) weakens the inter-molecular hydrogen bonding in glycol. This is reflected reduced values viscosity for dispersions (nanofluids) compared that base fluid. decrease more pronounced at lower temperatures higher concentration. percentage reduction 53 32 % 10 28 °C, respectively, 2 vol% pure PG. dispersion has immense potential cooling application owing viscosity. At high where bonds fluid are substantially weaker, ZnO–PG than An estimated 80 37 % enhancement heat transfer coefficient can be achieved using respectively.