Abstract
This research aims of compare the impact of the mass fraction of multi-walled carbon nanotubes (MWCNTs) and titanium dioxide (TiO2) nano additive on the tribological and thermophysical attributes of turbine meter oil. These attributes include the average friction coefficient, pressure drop, wear, flash point, pour point, relative viscosity, kinematics viscosity, and viscosity index. The pressure drops and the average friction coefficient inside the copper tube were simulated and compared with experimental results. In this study, for the synthesis of nano lubricants from turbine meter oil as a pure fluid and from MWCNTs and TiO2 as nano additives in the mass fraction of 0.05, 0.1, 0.2, 0.3, and 0.4 wt.% and from oleic acid and Triton x100 as surfactants were utilized. The results illustrated that the wear depth of copper pins in the presence of nano lubricant with 0.4 wt.% of MWCNTs and 0.1 wt.% TiO2 was improved by 88.26% and 71.43%, respectively. Increasing 0.3 wt.% of TiO2 and MWCNTs into the oil caused to improvement in viscosity index. The simulation data and experimental data for the pressure drop were closer together and indicated a minor error that the maximum error is less than 10%.
Highlights
This research aims of compare the impact of the mass fraction of multi-walled carbon nanotubes (MWCNTs) and titanium dioxide (TiO2) nano additive on the tribological and thermophysical attributes of turbine meter oil
Ingole et al.[23] used T iO2 nano additive to improve the tribological performance of the oil and found that increasing nano additives significantly reduced the friction coefficient
Some parts of the present study used the previously published papers data’s41,42 (Morphological analysis of MWCNTs, viscosity, viscosity index, flash point, and pressure drop data were used for MWCNTs/ turbine meter oil nanofluids[41], morphological analysis of TiO2 nanoparticles, viscosity, viscosity index, pour point, flash point, and wear data were used T iO2/turbine meter oil n anofluids42) in order to better compare the results of 2 different TiO2 nanoparticles and MWCNT nanotubes in turbine-meter oil rheological properties improving
Summary
This research aims of compare the impact of the mass fraction of multi-walled carbon nanotubes (MWCNTs) and titanium dioxide (TiO2) nano additive on the tribological and thermophysical attributes of turbine meter oil. Pourpasha et al.[41,42] studied the tribological and the thermophysical performance of turbine meter oil containing MWCNT and T iO2 nanoparticles as additives Their results indicated that tribological and thermophysical properties of nanofluids improved compared to the pure lubricant. The primary purpose of this study is the numerically and experimentally evaluate the impacts of MWCNTs and TiO2 nano additives on the tribological and thermophysical properties of turbine meter oil To achieve this goal, the first nano lubricants containing MWCNTs and T iO2 nanoparticles in various mass fractions (0.05 wt.%, 0.1 wt.%, 0.2 wt.%, 0.3 wt.%, and 0.4 wt.%) were synthesized through a two-step method. Some parts of the present study used the previously published papers data’s41,42 (Morphological analysis of MWCNTs, viscosity, viscosity index, flash point, and pressure drop data were used for MWCNTs/ turbine meter oil nanofluids[41], morphological analysis of TiO2 nanoparticles, viscosity, viscosity index, pour point, flash point, and wear data were used T iO2/turbine meter oil n anofluids42) in order to better compare the results of 2 different TiO2 nanoparticles and MWCNT nanotubes in turbine-meter oil rheological properties improving
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