Eventos Anais de eventos
COBEM 2019
25th International Congress of Mechanical Engineering
EFFECT OF TEMPERATURE AND NANOPARTICLES CONCENTRATION ON THERMAL CONDUCTIVITY AND VISCOSITY OF OIL-BASED NANOFLUIDS: AN EXPERIMENTAL STUDY
Submission Author:
Ítalo Guilherme , MG , Brazil
Co-Authors:
Ítalo Guilherme, Daniel Florez, ENIO PEDONE BANDARRA FILHO, Abdul Orlando Cárdenas Gómez
Presenter: Ítalo Guilherme
doi://10.26678/ABCM.COBEM2019.COB2019-2355
Abstract
In the present experimental investigation, nanofluids are prepared with different types of nanoparticle and solid concentration. Multi-walled carbon nanotubes (MWCNT), silver (Ag), titanium dioxide (TiO2) and zirconium dioxide (ZrO2) nanoparticles are used in this work. Thermal conductivity and dynamic viscosity of the base fluid and all nanofluids were measured at different temperatures and the effect of the type and solid concentration of nanoparticles on the heat transfer properties of the fluid is investigated. The results show an increase of up to 18% in the value of the thermal conductivity of nanofluids of multi-walled carbon nanotubes (MWCNT) compared to the base fluid. A maximum increase of 1.7% in dynamic viscosity was observed for the maximum concentration of carbon nanotubes (MWCNT). The results obtained are compared with different authors.
Keywords
thermal conductivity, dynamic viscosity, thermodynamic properties, Nanofluids, oil
