Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
TRANSPORT PROPERTIES OF NANOLUBRICANTS BASED IN POLYOLESTER REFRIGERATION OIL AND DIAMOND NANOPARTICLES
Submission Author:
David Fernando Marcucci Pico , SP , Brazil
Co-Authors:
David Fernando Marcucci Pico, Letícia Oliveira, ENIO PEDONE BANDARRA FILHO, Victor Panato
Presenter: ENIO PEDONE BANDARRA FILHO
doi://10.26678/ABCM.COBEM2017.COB17-0143
Abstract
The focus of this work is the synthesis and the measurement of the thermophysical properties of nanolubricants with a dispersion of nanodiamonds in polyolester refrigeration oil as base fluid at three different mass concentrations 0.01, 0.05 and 0.1%. The density and the viscosity were measured at different temperatures from 10 to 100 °C, and the thermal conductivity was measured from 5 to 65 °C. It was observed that the viscosity of the nanolubricants increases slightly at low concentration but achieves significant values up to 7% for 1.0% mass concentration, otherwise the viscosity is reduced exponentially with the increment of the temperature. The thermal conductivity of pure POE oil and the nanolubricants showed a trend to decrease with the increment of the temperature and to increase up to 12% as the mass concentration of nanoparticles increases.
Keywords
Nanolubricants, polyolester, thermal conductivity, diamond
