Počet záznamů: 1
Density measurements of squalane using single-sinker and vibrating-tube densimeters
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SYSNO ASEP 0588171 Druh ASEP A - Abstrakt Zařazení RIV Záznam nebyl označen do RIV Zařazení RIV Není vybrán druh dokumentu Název Density measurements of squalane using single-sinker and vibrating-tube densimeters Tvůrce(i) Blahut, Aleš (UT-L) RID, ORCID
Prokopová, Olga (UT-L) ORCID
Vinš, Václav (UT-L) RID, ORCID
Soba, L. (DE)
Thol, M. (DE)
Span, R. (DE)Celkový počet autorů 6 Rok vydání 2024 Zdroj.dok. Twenty-Second Symposium on Thermophysical Properties and Eighteenth International Conference on the Properties of Water and Steam. - Boulder, 2024 Poč.str. 1 s. Forma vydání Online - E Akce Symposium on Thermophysical Properties /22./ and International Conference on the Properties of Water and Steam /18./ Datum konání 23.06.2024 - 28.06.2024 Místo konání Colorado Země US - Spojené státy americké Typ akce WRD Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova squalane ; density ; single-sinker densimeter ; vibrating tube densimeter Obor OECD Thermodynamics CEP EF18_053/0017555 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy Institucionální podpora UT-L - RVO:61388998 Anotace Squalane, an oily long-chain alkane (C30H62), has been identified as a promising reference material for viscosity measurements of petroleum fluids under typical reservoir conditions covering high temperatures and pressures. To meet the need for a reliable reference equation, several correlations for the viscosity and density of squalane have been developed over the last decade, incorporating numerous recent experimental data. In the case of liquid densities, a significant amount of the underlying data has been obtained using the vibrating tube method, which however has certain accuracy limitations when measuring viscous liquids such as squalane. Typically, an instrument automatic built-in correction or some semi-empirical formulas are used to account for the effect of viscosity on the resulting density. This contribution presents new accurate liquid density data for squalane from 293 K to 453 K and from near ambient pressure up to 20 MPa, measured with a single-sinker magnetic-suspension densimeter, which are considered to be insensitive to sample viscosity. Simultaneously, new data acquired with a commercially available vibrating tube densimeter (VTD) on the same batch of squalane are presented. The performance of the VTD calibrated with dry air and water using automatic instrument correction for the sample viscosity can thus be evaluated.
New results successfully correlated with the Tait equation within an experimental uncertainty of less than 0.01 % are also compared with selected literature data.
Pracoviště Ústav termomechaniky Kontakt Marie Kajprová, kajprova@it.cas.cz, Tel.: 266 053 154 ; Jana Lahovská, jaja@it.cas.cz, Tel.: 266 053 823 Rok sběru 2025
Počet záznamů: 1