An accurate empirical correlation for predicting natural gas viscosity

doi:10.1016/S1003-9953(10)60244-7

能源化学(英文) ›› 2011, Vol. 20 ›› Issue (6): 654-658.DOI: 10.1016/S1003-9953(10)60244-7

An accurate empirical correlation for predicting natural gas viscosity

Ehsan Sanjari, Ebrahim Nemati Lay*, Mohammad Peymani

Department of Chemical Engineering, Faculty of Engineering, University of Kashan, Ravand Street, Kashan, P. O. Box 87317-51167, Iran

收稿日期:2011-04-06 修回日期:2011-07-26 出版日期:2011-11-20 发布日期:2011-11-18
通讯作者: Dr. Ebrahim Nemati Lay

An accurate empirical correlation for predicting natural gas viscosity

Ehsan Sanjari, Ebrahim Nemati Lay*, Mohammad Peymani

Department of Chemical Engineering, Faculty of Engineering, University of Kashan, Ravand Street, Kashan, P. O. Box 87317-51167, Iran

Received:2011-04-06 Revised:2011-07-26 Online:2011-11-20 Published:2011-11-18
Contact: Ebrahim Nemati Lay

摘要/Abstract

摘要： Natural gas viscosity is an important parameter in many gas and petroleum engineering calculations. This study presents a new empirical model for quickly calculating the natural gas viscosity. The model was derived from 4089 experimental viscosity data with varieties ranging from 0.01 to 21, and 1 to 3 of pseudo reduced pressure and temperature, respectively. The accuracy of this new empirical correlation has been compared with commonly used empirical models, including Lee et al., Heidaryan et al., Carr et al., and Adel Elsharkawy correlations. The comparison indicates that this new empirical model can predict viscosity of natural gas with average absolute relative deviation percentage AARD (%) of 2.173.

关键词: viscosity, natural gas, correlation, empirical model

Abstract: Natural gas viscosity is an important parameter in many gas and petroleum engineering calculations. This study presents a new empirical model for quickly calculating the natural gas viscosity. The model was derived from 4089 experimental viscosity data with varieties ranging from 0.01 to 21, and 1 to 3 of pseudo reduced pressure and temperature, respectively. The accuracy of this new empirical correlation has been compared with commonly used empirical models, including Lee et al., Heidaryan et al., Carr et al., and Adel Elsharkawy correlations. The comparison indicates that this new empirical model can predict viscosity of natural gas with average absolute relative deviation percentage AARD (%) of 2.173.

Key words: viscosity, natural gas, correlation, empirical model

Ehsan Sanjari, Ebrahim Nemati Lay*, Mohammad Peymani . An accurate empirical correlation for predicting natural gas viscosity[J]. 能源化学(英文), 2011, 20(6): 654-658.

Ehsan Sanjari, Ebrahim Nemati Lay*, Mohammad Peymani . An accurate empirical correlation for predicting natural gas viscosity[J]. Journal of Energy Chemistry, 2011, 20(6): 654-658.

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An accurate empirical correlation for predicting natural gas viscosity

An accurate empirical correlation for predicting natural gas viscosity

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