Determination of the Arrhenius Parameters of Mahogany Seed Oil using Viscosity Flow Data

Authors : E. IKE, A. B. Dikko.

Volume/Issue : Volume 3 - 2018, Issue 2 - February

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A more accurate measurement of the physical and physicochemical properties of fluids is very important in understanding mass flow and heat transfer behaviors of (viscous) fluids, in this case, locally produced Khaya Senegalensis (Mahogany) seed oil in Yola, Nigeria. In the present work, we determined the viscosity η, density ρ and graphically correlated three Arrhenius parameters; the Activation Energy (Ea,)theEntropicfactor (A) and the Arrhenius Temperature (TA). We alsointroduced the Arrhenius Activation Temperature T* for homogenous dimensions. Viscosity measurement in centipoise ranged between 60.70 at 30oC to 9.83 at 80oC while the density measurement varied between 0.9243 g/cm3at 30 oC to 0.9110 g/cm3 at 80 oC. The Arrhenius parameters of Activation energy (Ea), Entropic factor A, Arrhenius temperature (TA) and the Arrhenius Activation Temperature T* are calculated to be 712.5748 J/mole, 3.9551 centipoise, – 62.3630 oC, and 85.7490 oC respectively. The goodness of the above result is supported by the R-squared value of 0.9666. The results show that the model which best fits the relationship between the defined Arrhenius parameters is a logarithmic in nature. All the biodiesel quality parameters examined in the present study showed that Khaya Senegalensis seed oil is a good feed stock for biodiesel production and reveals its usefulness in electric voltage transformers.

Keywords : Activation energy, Arrhenius Activation Temperature, Arrhenius temperature, Entropic factor, Arrhenius Parameters and Viscosity.


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