Journal
RESOURCES-BASEL
Volume 10, Issue 10, Pages -Publisher
MDPI
DOI: 10.3390/resources10100099
Keywords
vacuum gas oil; gas oil; viscosity; empirical modeling; sensitivity analysis; Akaike information criterion; Bayesian information criterion; nonlinear regression
Categories
Funding
- Asen Zlatarov University-Burgas, Project: Information and Communication Technologies for a Digital Single Market in Science, Education and Security DCM [577/17.08.2018]
Ask authors/readers for more resources
Four nonlinear regression techniques were used to model gas oil viscosity based on Walther’s empirical equation. The LSRE model was found to be the best model with high stability and accuracy in predicting gas oil viscosity.
Four nonlinear regression techniques were explored to model gas oil viscosity on the base of Walther's empirical equation. With the initial database of 41 primary and secondary vacuum gas oils, four models were developed with a comparable accuracy of viscosity calculation. The Akaike information criterion and Bayesian information criterion selected the least square relative errors (LSRE) model as the best one. The sensitivity analysis with respect to the given data also revealed that the LSRE model is the most stable one with the lowest values of standard deviations of derivatives. Verification of the gas oil viscosity prediction ability was carried out with another set of 43 gas oils showing remarkably better accuracy with the LSRE model. The LSRE was also found to predict better viscosity for the 43 test gas oils relative to the Aboul Seoud and Moharam model and the Kotzakoulakis and George.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available