Comparison of different models to calculate the viscosity of biogas and biomethane in order to accurately measure flow rates for conformity assessment

Abstract The study presents an optimised method to correct flow rates measured with a LFE flowmeter pre-set on methane while used for gas mixtures of unknown composition at the time of the measurement. The method requires the correction of the flow rate using a factor based on the viscosity of the g...

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Autores principales:	Karine Arrhenius, Oliver Büker
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/bd15873d291e4a8ab5e6544162dfc481
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spelling	oai:doaj.org-article:bd15873d291e4a8ab5e6544162dfc4812021-12-02T15:23:39ZComparison of different models to calculate the viscosity of biogas and biomethane in order to accurately measure flow rates for conformity assessment10.1038/s41598-021-81052-72045-2322https://doaj.org/article/bd15873d291e4a8ab5e6544162dfc4812021-01-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-81052-7https://doaj.org/toc/2045-2322Abstract The study presents an optimised method to correct flow rates measured with a LFE flowmeter pre-set on methane while used for gas mixtures of unknown composition at the time of the measurement. The method requires the correction of the flow rate using a factor based on the viscosity of the gas mixtures once the composition is accurately known. The method has several different possible applications inclusive for the sampling of biogas and biomethane onto sorbent tubes for conformity assessment for the determination of siloxanes, terpenes and VOC in general. Five models for the calculation of the viscosity of the gas mixtures were compared and the models were used for ten binary mixtures and four multi-component mixtures. The results of the evaluation of the different models showed that the correction method using the viscosity of the mixtures calculated with the model of Reichenberg and Carr showed the smallest biases for binary mixtures. For multi-component mixtures, the best results were obtained when using the models of Lucas and Carr.Karine ArrheniusOliver BükerNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Karine Arrhenius Oliver Büker Comparison of different models to calculate the viscosity of biogas and biomethane in order to accurately measure flow rates for conformity assessment
description	Abstract The study presents an optimised method to correct flow rates measured with a LFE flowmeter pre-set on methane while used for gas mixtures of unknown composition at the time of the measurement. The method requires the correction of the flow rate using a factor based on the viscosity of the gas mixtures once the composition is accurately known. The method has several different possible applications inclusive for the sampling of biogas and biomethane onto sorbent tubes for conformity assessment for the determination of siloxanes, terpenes and VOC in general. Five models for the calculation of the viscosity of the gas mixtures were compared and the models were used for ten binary mixtures and four multi-component mixtures. The results of the evaluation of the different models showed that the correction method using the viscosity of the mixtures calculated with the model of Reichenberg and Carr showed the smallest biases for binary mixtures. For multi-component mixtures, the best results were obtained when using the models of Lucas and Carr.
format	article
author	Karine Arrhenius Oliver Büker
author_facet	Karine Arrhenius Oliver Büker
author_sort	Karine Arrhenius
title	Comparison of different models to calculate the viscosity of biogas and biomethane in order to accurately measure flow rates for conformity assessment
title_short	Comparison of different models to calculate the viscosity of biogas and biomethane in order to accurately measure flow rates for conformity assessment
title_full	Comparison of different models to calculate the viscosity of biogas and biomethane in order to accurately measure flow rates for conformity assessment
title_fullStr	Comparison of different models to calculate the viscosity of biogas and biomethane in order to accurately measure flow rates for conformity assessment
title_full_unstemmed	Comparison of different models to calculate the viscosity of biogas and biomethane in order to accurately measure flow rates for conformity assessment
title_sort	comparison of different models to calculate the viscosity of biogas and biomethane in order to accurately measure flow rates for conformity assessment
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/bd15873d291e4a8ab5e6544162dfc481
work_keys_str_mv	AT karinearrhenius comparisonofdifferentmodelstocalculatetheviscosityofbiogasandbiomethaneinordertoaccuratelymeasureflowratesforconformityassessment AT oliverbuker comparisonofdifferentmodelstocalculatetheviscosityofbiogasandbiomethaneinordertoaccuratelymeasureflowratesforconformityassessment
_version_	1718387289946587136

Comparison of different models to calculate the viscosity of biogas and biomethane in order to accurately measure flow rates for conformity assessment

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