Thermophysical and transient heat transfer characteristics of aqueous SiO2 nanofluid in energy management applications
- 29 September 2022
- journal article
- research article
- Published by SAGE Publications in Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering
- Vol. 237 (3), 1100-1111
- https://doi.org/10.1177/09544089221128472
Abstract
The development and implementation of transient heat transfer characteristics of nanofluids in energy management were studied. Ultrasonic-assisted SiO2/water nanofluids with 0.1-1.5 wt. % were prepared using polyvinyl alcohol (PVA) surfactant. The stability of nanofluids was tested and confirmed using zeta potential and light absorbance measurement. Thermophysical properties of nanofluid were investigated at various weight concentrations from 0.1 to 1.5 wt. % in a temperature range of 25-70 degrees C. Transient heat transfer characteristics of nanofluids were examined. Thermophysical properties were enhanced by adding nanoparticles to base fluid. A major enhancement in transient heat transfer characteristics was obtained by applying SiO2/water nanofluids. The convective heat transfer coefficient (CHTC) was increased up to 2.37 times compared to water. The heat absorbance efficiency of the system is increased by a maximum of 24.54%. Finally, a new CHTC correlation has been proposed.Keywords
This publication has 56 references indexed in Scilit:
- Latest developments on the viscosity of nanofluidsInternational Journal of Heat and Mass Transfer, 2012
- Viscosity affected by nanoparticle aggregation in Al2O3-water nanofluidsNanoscale Research Letters, 2011
- Application of nanofluids in heating buildings and reducing pollutionApplied Energy, 2009
- Experimental investigation of viscosity and specific heat of silicon dioxide nanofluidsMicro & Nano Letters, 2007
- Pool boiling characteristics of nano-fluidsInternational Journal of Heat and Mass Transfer, 2003
- Anomalous thermal conductivity enhancement in nanotube suspensionsApplied Physics Letters, 2001
- Anomalously increased effective thermal conductivities of ethylene glycol-based nanofluids containing copper nanoparticlesApplied Physics Letters, 2001
- Measuring Thermal Conductivity of Fluids Containing Oxide NanoparticlesJournal of Heat Transfer, 1999
- HYDRODYNAMIC AND HEAT TRANSFER STUDY OF DISPERSED FLUIDS WITH SUBMICRON METALLIC OXIDE PARTICLESExperimental Heat Transfer, 1998
- Thermal Conductivity of Heterogeneous Two-Component SystemsIndustrial & Engineering Chemistry Fundamentals, 1962