Research Day, At Najah National University Nablus Palestine

2160's picture
Research Title: 
Rheology Properties of Castor Oil: Temperature and Shear Rate -Dependence of Castor Oil Shear Stress
Authors: 
T. H. Nierat
Authors: 
Issam Ashqer
Country: 
Palestine
Date: 
Fri, 2013-11-01
Research Abstract: 
The dynamic viscosity of castor oil was measured as a function of shear rate at different temperature ranged from 1.7 to 62degree Celsius. In this study, the shear stress and the dynamic viscosity as a function of temperature of castor oil decrease with increasing temperatures. Three and multi-constant formulas were proposed to obtain more suitable prediction of temperature dependence of shear stress and dynamic viscosity of castor oil. The best AAD% was calculated using our proposed formulas to be 0.03%. This work shows that the behavior of castor oil at the temperature ranged from 1.7 to 62˚C is Newtonian behavior by fitting the model of power law.