Browsing by Author "Edoga M. O."

Filter results by typing the first few letters
Now showing 1 - 2 of 2
  • No Thumbnail Available
    Item
    Development and Characterization of Lubricating Oil from Petroleum Base Source (500N)
    (Journal of Science, Technology and Mathematics Education (JOSTMED), 2003) Kefas H. M.; Edoga M. O.; Kovo A. S.; Eterigho E. J.
    Lubricating oils were formulated from a petroleum base oil (500N oil) obtained from Nigerian National Petroleum corporation (NNPC) using simplex lattice design. Subsequently, the lubricant samples were characterized according to ASTM methods to define the following physicochemical properties: kinematic viscosity (at 40"C and 100°C), specific gravity, API gravity, viscosity index, flash point, pour point, total base number and appearances. The results showed that the samples were of the motor oil grades of SAE 30, SAE 40 and SAE and 20W50 based on their viscosities. Samples 5 and 6 of SAE20 and W50 grades were the best since they have specifications close to the acceptable standards world wide with viscosity indices of 126 and 124, respectively,
  • No Thumbnail Available
    Item
    Formulation of Hydraulic Brake Fluid Using Castor Oil as A Base Stock: Physiochemical Properties of Castor Oil and the hydraulic fluid
    (Journal of Science, Technology and Mathematics Education (JOSTMED), 2002) Eterigho E. J.; Edoga M. O.
    Indirect leaching was used to extract castor oil from the castor beans. A hydraulic brake fluid was formulated by mixing the castor oil, solvents and other additives at various proportions using unifactor design approach. Both the castor oil and brake fluid was analysed to determine their physiochemical properties. Results show that the castor oil has high viscosities of 29.29Cst and 19.54Cst at 40oC and 100 oC , respectively, specific gravity of 0.927 at 30oC/30oC, acid and saponification values of 3.5 and 186.0 respectively. On the other hand, the best fitted formulation (Castor oil, solvent and additives) of hydraulic brake fluid has reduced viscosities of 19.54Cst and 2.33 Cst at 40°C and 100°C respectively. The flash and boiling points were found to be 124.25 and 220.05 respectively.