Correlating the Speed of Sound with the Gibbs Energy and Estimating the Speed of Sound in Fatty Acid Methyl Ester and Biodiesel

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dc.contributor.authorApinya Cheewaphan
dc.contributor.authorUbol Chuensumran
dc.contributor.authorSuriya Phankosol
dc.contributor.authorKornkanok Aryusuk
dc.contributor.authorSupathra Lilitchan
dc.contributor.authorKanit Krisnangkura
dc.contributor.correspondenceK. Krisnangkura; Division of Biochemical Technology, School of Bioresources and Technology, King Mongkut's University of Technology Thonburi (Bangkhuntien), Bangkok, 10150, Thailand; email: kanitkrsnk@yahoo.com
dc.date.accessioned2025-03-10T07:35:29Z
dc.date.available2025-03-10T07:35:29Z
dc.date.issued2021
dc.description.abstractThe relationship between the speed of sound (u) in biodiesel and the change in Gibbs energy (_G) has not been described in the literature. With the Gibbs energy additivity method, the relationship between u and _G can be expressed as ln(u2)Ê=Ê_G/RT + A, where R is the universal gas constant, T is the absolute temperature, and A is a constant. The molecule of fatty acid methyl ester (FAME) was arbitrarily sub-divided into groups of atoms and a _G was assigned to each group of atoms. A new model correlating the speed of sound to the structure of fatty acid was derived. The proposed model was good for estimation of the speed of sound in both FAME and biodiesel at various temperatures with good accuracy. The absolute average deviations for the speed of sound in FAME (65 data points) and in biodiesel (175 data points) were 0.23% and 0.36%, respectively. Only the number of double bonds and carbon atoms of the fatty acid are required for the calculation. © 2021 AOCS
dc.identifier.citationJAOCS, Journal of the American Oil Chemists' Society
dc.identifier.doi10.1002/aocs.12476
dc.identifier.issn0003021X
dc.identifier.scopus2-s2.0-85101297792
dc.identifier.urihttps://repository.dusit.ac.th//handle/123456789/4729
dc.languageEnglish
dc.publisherJohn Wiley and Sons Inc
dc.rightsAll Open Access; Green Open Access
dc.rights.holderScopus
dc.subjectBiodiesel
dc.subjectFatty acid methyl ester
dc.subjectGibbs energy
dc.subjectGibbs energy additivity
dc.subjectSpeed of sound
dc.titleCorrelating the Speed of Sound with the Gibbs Energy and Estimating the Speed of Sound in Fatty Acid Methyl Ester and Biodiesel
dc.typeArticle
mods.location.urlhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85101297792&doi=10.1002%2faocs.12476&partnerID=40&md5=b5823a35903d128fac619e82249f7df6
oaire.citation.endPage604
oaire.citation.issue5
oaire.citation.startPage593
oaire.citation.volume98
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