Abstract

Rheology properties of coconut oil: temperature and shear rate -dependence of coconut oil shear stress

Author(s): T.H.Nierat, I.R. Abdelraziq

Rheological properties of coconut oil were obtained at different temperatures. The coconut oil samplewas subjected to viscometer measurements of dynamic viscosity at shear rate and temperature ranged from30 to 100rpm, and 22 to 34 degree Celsius, respectively. Results showed that coconut oil behaves as Newtonian fluid at that range of temperatures. Formulas of three and multi-constantwere proposed to obtainmore suitable prediction of temperature dependence of shear stress and dynamic viscosity of coconut oil. The best AAD% was calculated using our proposed formulas to be 0.0000%.


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