A Model for the Estimation of Viscosity of Pure Hydrocarbon Liquids |
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Authors: | W. Aleem N. Mellon S. Sufian M. I. A. Mutalib |
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Affiliation: | Department of Chemical Engineering, Universiti Teknologi PETRONAS, Bandar Sri Iskandar, Perak, Malaysia |
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Abstract: | A simple model is developed for the estimation of viscosity of hydrocarbon liquids considering that drag on molecular motion due to thermal energy is balanced by intermolecular attractions. The model equation is validated with National Institute of Standards and Technology data on hydrocarbon liquids (C3-C10 and C12) considering the effect of molecular shape on drag force. The molecular shape is correlated well with molecular weight of hydrocarbon liquids. The accuracy of the proposed model equation is compared with the correlation. The result showed that the proposed model is more accurate. The proposed model equation predicts the viscosity over a wide range of temperature for C3-C25 with overall absolute average deviation of 5.13%. |
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Keywords: | viscosity hydrocarbon liquids thermodynamic properties pure liquids model |
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