CHARACTERIZATION OF CuO-NANOADDITIVE BLENDED ENGINE OIL

Abstract

Copper oxide (CuO) nanoadditives were successfully synthesized in laboratory by precipitation technique. X-ray diffraction spectroscopy (XRD) showed the crystalline nature of CuO with the average crystal size of 10 nm. The prepared CuO has been blended with engine oil. Thus prepared modified engine oil showed good kinematic viscosity 158 cSt and 19.06 cSt at 40 ⁰ C and 100 ⁰ C respectively. The viscosity index was also found to be improved to 122. Similarly, the pour point was also found to be considerably decreased to -27 ⁰ C which is due to presence of CuO that acts as good pour point depressant. The flash point of modified engine oil reached to 225 ⁰ C. In addition, modified engine oil was found to be reluctant towards water and it does not contain noticeable amount of water and found to be noncorrosive in nature having copper strip corrosion rating 1b according to ASTM D-130 method. Results revealed that the physio-chemical parameters of engine oil could be improved by the addition of CuO nanoadditive.

Purification of Used Lubricating Oils Using Vacuum Distillation

“…After treated used lubricating oil (UO) samples, changes in the specific gravity values were observed as shown in Figure (3).…”

“…Depending on what was obtained from the experimental results, it was noticed that the specific gravity of the used lubricating oil (UO) has increased compared to the new and base oil. The specific gravity of the used oil was (0.892, 0.907) g/cm 3 for gasoline, and diesel engine respectively. It can be said that the reasons behind these results are that the increase in the number of aromatic compounds in the oil results in an increase the specific gravity, while an increase the saturated compounds results in a decrease in the specific gravity also the used lubricating oil contained solids materials, which led to a high density [28].…”

Investigation of Mineral Oil and CuO Mixed Synthetic Oil in Compression Ignition Engines: A Comparison of Physicochemical Attributes

“…Lubricant Oil Physicochemical Testing F Te Navada et al [37] CuO + pongamia oil  Kumar et al [38] CuO + sunflower oil  Gupta et al [39] CuO + 5W30 engine oil  Subedi et al [40] CuO + 20W50 engine oil the flash temperatures were identified at a concentration of 1.1061 wt%, a speed of 217.6768 rpm, and a load of 5.0909 N. Baskar et al [32] investigated the tribological performance of journal bearings using SAE20W40 synthetic lubricant and chemically modified rapeseed oil (CMRO) as a bio lubricant, both dispersed with CuO, WS2, and TiO2 nanoparticles as anti-wear additives. The journal-bearing test rig was used to assess the COF, wear rates, and oil film thickness at a load of 10 kN l and a speed of 3000 rpm.…”

Photocatalytical Degradation of Methyl Orange using laboratory prepared Copper Oxide photocatalyst

“…In present study, CuO has been used to degrade dye from aqueous solution. A number of methods that have been adopted to synthesize CuO nanoparticles such as sol-gel 6 , precipitation 7 , solid state reaction 8 , sono-chemical 9 , microwave irradiation [10][11][12] , plasma 12 and thermal decomposition 13 . Among them, simple Author for Correspondence: A. Rajbhandari (Nyachhyon), Central Department of Chemistry, Tribhuvan University, Kirtipur, Kathmandu, Nepal.…”