Different nonlinear regression techniques and sensitivity analysis as tools to optimize oil viscosity modeling

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creativework.keywordsAkaike information criterion, Bayesian information criterion, Empirical modeling, Gas oil, Nonlinear regression, Sensitivity analysis, Vacuum gas oil, Viscosity
creativework.publisherMDPIen
dc.contributor.authorStratiev D.
dc.contributor.authorNenov S.
dc.contributor.authorNedanovski D.
dc.contributor.authorShishkova I.
dc.contributor.authorDinkov R.
dc.contributor.authorStratiev D.D.
dc.contributor.authorStratiev D.D.
dc.contributor.authorSotirov S.
dc.contributor.authorSotirova E.
dc.contributor.authorAtanassova V.
dc.contributor.authorAtanassov K.
dc.contributor.authorYordanov D.
dc.contributor.authorAngelova N.A.
dc.contributor.authorRibagin S.
dc.contributor.authorTodorova-Yankova L.
dc.date.accessioned2024-07-10T14:27:05Z
dc.date.accessioned2024-07-10T14:50:03Z
dc.date.available2024-07-10T14:27:05Z
dc.date.available2024-07-10T14:50:03Z
dc.date.issued2021-10-01
dc.description.abstractFour 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.
dc.identifier.doi10.3390/resources10100099
dc.identifier.issn2079-9276
dc.identifier.scopusSCOPUS_ID:85116470513en
dc.identifier.urihttps://rlib.uctm.edu/handle/123456789/674
dc.language.isoen
dc.source.urihttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85116470513&origin=inward
dc.titleDifferent nonlinear regression techniques and sensitivity analysis as tools to optimize oil viscosity modeling
dc.typeArticle
oaire.citation.issue10
oaire.citation.volume10
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