Viscosity of Oxygenated Fuel: A Model Based on Eyring's Absolute Rate Theory

Chenyang Zhu; Feng Yang; Xiangyang Liu; Waheed Afzal; Maogang He

doi:10.1016/j.fuel.2018.12.031

Viscosity of Oxygenated Fuel: A Model Based on Eyring's Absolute Rate Theory

Chenyang Zhu, Feng Yang, Xiangyang Liu, Waheed Afzal, Maogang He (Corresponding Author)

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Abstract

A viscosity model was proposed for oxygenated fuel components; it was based on Eyring’s absolute rate theory and a cubic equation of state Soave-Redlich-Kwong. The viscosity was associated with flow energy which could be divided into the activation energy and the vacancy-formation energy, and then a reference state for simplifying the calculation process was introduced in the present model. This work also reported a viscosity database at temperatures from 243.15 K to 413.15 K and pressures up to 200 MPa for 31 oxygenated fuel components containing alcohols, esters and ethers in order to verify the proposed model. The average absolute relative deviations between calculated and experimental data were lower than 2.37%. Furthermore, the free-volume model, which has a similar consideration of flow energy with this work, was chosen to further investigate the performance of the present model, and in general, the present model showed a better accuracy than the free-volume model. Finally, it was shown that the proposed model could be extended to the mixtures successfully.

Original language	English
Pages (from-to)	218-226
Number of pages	9
Journal	Fuel
Volume	241
Early online date	17 Dec 2018
DOIs	https://doi.org/10.1016/j.fuel.2018.12.031
Publication status	Published - 1 Apr 2019

Bibliographical note

The authors gratefully acknowledge the supports provided by the National Science Fund for Distinguished Young Scholars of China [No. 51525604], the Foundation for Innovative Research Groups of the National Natural Science Foundation of China [No.51721004], the National Basic Research Program of China [No. 2015CB251502] and 111 Project [No. B16038].

Keywords

viscosity
Eyring's absolute rate theory
Flow energy
Oxygenated fuel
Free-volume model

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© 2018. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
Accepted author manuscript, 1.12 MBLicence: CC BY-NC-ND

Cite this

@article{63a0a7b1480142b0adbc4ba0efaddc9b,

title = "Viscosity of Oxygenated Fuel: A Model Based on Eyring's Absolute Rate Theory",

abstract = "A viscosity model was proposed for oxygenated fuel components; it was based on Eyring{\textquoteright}s absolute rate theory and a cubic equation of state Soave-Redlich-Kwong. The viscosity was associated with flow energy which could be divided into the activation energy and the vacancy-formation energy, and then a reference state for simplifying the calculation process was introduced in the present model. This work also reported a viscosity database at temperatures from 243.15 K to 413.15 K and pressures up to 200 MPa for 31 oxygenated fuel components containing alcohols, esters and ethers in order to verify the proposed model. The average absolute relative deviations between calculated and experimental data were lower than 2.37%. Furthermore, the free-volume model, which has a similar consideration of flow energy with this work, was chosen to further investigate the performance of the present model, and in general, the present model showed a better accuracy than the free-volume model. Finally, it was shown that the proposed model could be extended to the mixtures successfully.",

keywords = "viscosity, Eyring's absolute rate theory, Flow energy, Oxygenated fuel, Free-volume model",

author = "Chenyang Zhu and Feng Yang and Xiangyang Liu and Waheed Afzal and Maogang He",

note = "The authors gratefully acknowledge the supports provided by the National Science Fund for Distinguished Young Scholars of China [No. 51525604], the Foundation for Innovative Research Groups of the National Natural Science Foundation of China [No.51721004], the National Basic Research Program of China [No. 2015CB251502] and 111 Project [No. B16038].",

year = "2019",

month = apr,

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doi = "10.1016/j.fuel.2018.12.031",

language = "English",

volume = "241",

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TY - JOUR

T1 - Viscosity of Oxygenated Fuel

T2 - A Model Based on Eyring's Absolute Rate Theory

AU - Zhu, Chenyang

AU - Yang, Feng

AU - Liu, Xiangyang

AU - Afzal, Waheed

AU - He, Maogang

N1 - The authors gratefully acknowledge the supports provided by the National Science Fund for Distinguished Young Scholars of China [No. 51525604], the Foundation for Innovative Research Groups of the National Natural Science Foundation of China [No.51721004], the National Basic Research Program of China [No. 2015CB251502] and 111 Project [No. B16038].

PY - 2019/4/1

Y1 - 2019/4/1

N2 - A viscosity model was proposed for oxygenated fuel components; it was based on Eyring’s absolute rate theory and a cubic equation of state Soave-Redlich-Kwong. The viscosity was associated with flow energy which could be divided into the activation energy and the vacancy-formation energy, and then a reference state for simplifying the calculation process was introduced in the present model. This work also reported a viscosity database at temperatures from 243.15 K to 413.15 K and pressures up to 200 MPa for 31 oxygenated fuel components containing alcohols, esters and ethers in order to verify the proposed model. The average absolute relative deviations between calculated and experimental data were lower than 2.37%. Furthermore, the free-volume model, which has a similar consideration of flow energy with this work, was chosen to further investigate the performance of the present model, and in general, the present model showed a better accuracy than the free-volume model. Finally, it was shown that the proposed model could be extended to the mixtures successfully.

AB - A viscosity model was proposed for oxygenated fuel components; it was based on Eyring’s absolute rate theory and a cubic equation of state Soave-Redlich-Kwong. The viscosity was associated with flow energy which could be divided into the activation energy and the vacancy-formation energy, and then a reference state for simplifying the calculation process was introduced in the present model. This work also reported a viscosity database at temperatures from 243.15 K to 413.15 K and pressures up to 200 MPa for 31 oxygenated fuel components containing alcohols, esters and ethers in order to verify the proposed model. The average absolute relative deviations between calculated and experimental data were lower than 2.37%. Furthermore, the free-volume model, which has a similar consideration of flow energy with this work, was chosen to further investigate the performance of the present model, and in general, the present model showed a better accuracy than the free-volume model. Finally, it was shown that the proposed model could be extended to the mixtures successfully.

KW - viscosity

KW - Eyring's absolute rate theory

KW - Flow energy

KW - Oxygenated fuel

KW - Free-volume model

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U2 - 10.1016/j.fuel.2018.12.031

DO - 10.1016/j.fuel.2018.12.031

M3 - Article

SN - 0016-2361

VL - 241

SP - 218

EP - 226

JO - Fuel

JF - Fuel

ER -

Viscosity of Oxygenated Fuel: A Model Based on Eyring's Absolute Rate Theory

Abstract

Bibliographical note

Keywords

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