![]() The coconut oil studied at temperatures between 40 and 100 0C and shear rates between 3 and 120 s -1 using a Haake VT 550 Viscotester used with the HV 1 viscosity sensor (University of Bucharest). Types of coconut oil used in this paper are produced of Secom in Romania. By fitting the experimental curves we found the relation (7) that shows the dependence of the dynamic viscosity as a function of temperature at all the shear speeds at which the oil was studied. The objective of this article is to find a dependence relation of the dynamic viscosity as a function of temperature for the coconut oil. Where η is the dynamic viscosity in Pa.s in equation(6) and in cP in equation (7). These are represented in the following equations: Where η is the dynamic viscosity in Pa, s and T is the temperature in Kelvin. Three-constant formulas were used to represent theĭynamic viscosity as a function of temperature, which are: Where η is the dynamic viscosity in cP, T is the temperature in K, A and B are constants. ![]() Simple formulas of two-constant were proposed to describe the effect of temperature on dynamic viscosity. These studies proposed two, three and multi-constant formula to describe this temperature dependence. The effect of temperature on dynamic viscosity of vegetable oil has been studied by several studies. A polynomial or exponential dependence between temperature and dynamic viscosity of vegetable oil were proposed in Stanciu study. Multi-constant forms were proposed in several studies by Thorpe, Noureddini and Daubert. Were used and proposed in Vogel study, Andrade study, Noureddini study and in Simple form of twoĬonstant was proposed by De Guzman and Abramovic. Available from: Īlternative equations of two constant, three constantĪnd multi-constant forms were proposed by some researchers to describe theĭependence of dynamic viscosity of liquids on temperature. Correlation between Dynamic Viscosity and Temperature for Vegetable Oil. The correlation coefficients have values close to the unit with the lowest value being at the shear rate 17.87 s-1 of 0.9615. The exponential dependence is given by the formula.(7) By fitting we determined the values of the parameters η0, A and B at different shear speeds. The coconut oil studied at temperatures between C and shear rates between 3 and 120 s-1 using a Haake VT 550 Viscotester used with the HV1 viscosity sensor. In this article I studied coconut oil at temperatures between C. This article presents the exponential dependence of the dynamic viscosity of temperature for a vegetable oil.
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