Journal
FUEL
Volume 293, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.fuel.2021.120481
Keywords
Viscosity; Tribological behavior; Physicochemical characteristic; Nano-ZnO; Nano-MoS2; Diesel oil-based nanofluid
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The study investigated the effects of temperature and nanoparticle content on the viscosity, tribological properties, and physicochemical features of diesel oil-based nanofluids. ZnO and MoS2 nanoparticles were found to enhance the tribological characteristics of pure diesel oil. The addition of nanoparticles also increased the pumping power.
In this research, two different diesel oil-based nanofluids were prepared and the influence of temperature and nanoparticle content were examined on viscosity, tribological, and physicochemical features of diesel oil. The kinematic viscosity of samples was experimentally evaluated based on standard ASTM D445. The greatest viscosity increment was diagnosed at 0.7 wt% and 100 degrees C for both of the prepared nanofluids. The anti-friction behavior of the nanofluids was studied utilizing a pin-on-disc tribometer. The acquired outcomes revealed that ZnO and MoS2 nanoparticles (NPs) could promote the tribological characteristics of pure diesel oil. By analyzing the friction coefficient values and line roughness of the wear surface (Ra), an optimal concentration of ZnO and MoS2 nanoparticles (NPs) were found to be around 0.4 wt% and 0.7 wt%, respectively. The friction factor and pumping power were also measured at diverse content of nanoparticles and flow rates showing that the pumping power was enhanced by the incorporation of nanoparticles.
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