КФУ. Карточка публикации. Measurements of density at elevated pressure - A vibrating-tube densimeter calibration, uncertainty assessment, and validation of the results

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MEASUREMENTS OF DENSITY AT ELEVATED PRESSURE - A VIBRATING-TUBE DENSIMETER CALIBRATION, UNCERTAINTY ASSESSMENT, AND VALIDATION OF THE RESULTS

Форма представления

Статьи в зарубежных журналах и сборниках

Год публикации

2021

Язык

английский

Авторы, сотрудники КФУ

Ахмадияров Айдар Анфисович, автор

Петров Артем Александрович, автор

Ракипов Ильназ Тагирович, автор

Библиографическое описание на языке оригинала

Akhmadiyarov A.A, Marczak W, Petrov A.A, Rakipov I.T Measurements of density at elevated pressure - A vibrating-tube densimeter calibration, uncertainty assessment, and validation of the results//Journal of Molecular Liquids. - 2021. - Vol.336, Is.. - Art. № 116196.

Аннотация

The reported study dealt with a test of the Anton Paar DMA 4200 M densimeter for the measurements at elevated pressures. The densimeter was calibrated with water and toluene as standard liquids at pressures from 0.1 to 50 MPa and temperatures from 293.15 to 453.15 K. A fitted calibration equation with 14 adjustable coefficients proved to be suitable for the whole range of pressure and temperature. Two liquids with known densities, n-heptane and acetonitrile, were used in the validation procedure that consisted in the measurements of the densities, fitting Tait-type equations of state, and comparing the obtained results with the densities reported in 50 literature sources. The uncertainty of density, ?0.2 kg?m−3, was assessed from the results obtained for the most unfavourable combination of pressure and temperature. It was equal to the value declared by the densimeter manufacturer for the measurements at atmospheric pressure. The biggest contribution in the combined uncertainty of density was that due to the temperature measurement error.

Ключевые слова

уравнение состояния, плотность при высоком давлении, неопределенность измерений, equation of state; high pressure density; measurement uncertainty

Название журнала

Journal of Molecular Liquids

URL

https://www.scopus.com/inward/record.uri?eid=2-s2.0-85107829038&doi=10.1016%2fj.molliq.2021.116196&partnerID=40&md5=2546c29951aad746459a924e144f1ce2

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https://repository.kpfu.ru/?p_id=254397

Полная запись метаданных

Поле DC	Значение	Язык
dc.contributor.author	Ахмадияров Айдар Анфисович	ru_RU
dc.contributor.author	Петров Артем Александрович	ru_RU
dc.contributor.author	Ракипов Ильназ Тагирович	ru_RU
dc.date.accessioned	2021-01-01T00:00:00Z	ru_RU
dc.date.available	2021-01-01T00:00:00Z	ru_RU
dc.date.issued	2021	ru_RU
dc.identifier.citation	Akhmadiyarov A.A, Marczak W, Petrov A.A, Rakipov I.T Measurements of density at elevated pressure - A vibrating-tube densimeter calibration, uncertainty assessment, and validation of the results//Journal of Molecular Liquids. - 2021. - Vol.336, Is.. - Art. № 116196.	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/?p_id=254397	ru_RU
dc.description.abstract	Journal of Molecular Liquids	ru_RU
dc.description.abstract	The reported study dealt with a test of the Anton Paar DMA 4200 M densimeter for the measurements at elevated pressures. The densimeter was calibrated with water and toluene as standard liquids at pressures from 0.1 to 50 MPa and temperatures from 293.15 to 453.15 K. A fitted calibration equation with 14 adjustable coefficients proved to be suitable for the whole range of pressure and temperature. Two liquids with known densities, n-heptane and acetonitrile, were used in the validation procedure that consisted in the measurements of the densities, fitting Tait-type equations of state, and comparing the obtained results with the densities reported in 50 literature sources. The uncertainty of density, ?0.2 kg?m−3, was assessed from the results obtained for the most unfavourable combination of pressure and temperature. It was equal to the value declared by the densimeter manufacturer for the measurements at atmospheric pressure. The biggest contribution in the combined uncertainty of density was that due to the temperature measurement error.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	уравнение состояния	ru_RU
dc.subject	плотность при высоком давлении	ru_RU
dc.subject	неопределенность измерений	ru_RU
dc.subject	equation of state; high pressure density; measurement uncertainty	ru_RU
dc.title	Measurements of density at elevated pressure - A vibrating-tube densimeter calibration, uncertainty assessment, and validation of the results	ru_RU
dc.type	Статьи в зарубежных журналах и сборниках	ru_RU