Fouling Simulations of a Passive Part of the Testing Combustion Facility

Results from the previous work of Strouhal et al. (2020) suggest that the used CFD fouling model together with user-implemented subroutines is not sufficient for obtaining satisfactory agreement with deposits observed in a described experimental device. The objective of this work is to create a basi...

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Autores principales:	Jirí Strouhal, Tomáš Jurena, Zdenek Jegla
Formato:	article
Lenguaje:	EN
Publicado:	AIDIC Servizi S.r.l. 2021
Materias:	Chemical engineering TP155-156 Computer engineering. Computer hardware TK7885-7895
Acceso en línea:	https://doaj.org/article/72e84eb94f014384ab2a7c9ae3a481a9
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spelling	oai:doaj.org-article:72e84eb94f014384ab2a7c9ae3a481a92021-11-15T21:48:01ZFouling Simulations of a Passive Part of the Testing Combustion Facility10.3303/CET21881042283-9216https://doaj.org/article/72e84eb94f014384ab2a7c9ae3a481a92021-11-01T00:00:00Zhttps://www.cetjournal.it/index.php/cet/article/view/11897https://doaj.org/toc/2283-9216Results from the previous work of Strouhal et al. (2020) suggest that the used CFD fouling model together with user-implemented subroutines is not sufficient for obtaining satisfactory agreement with deposits observed in a described experimental device. The objective of this work is to create a basis for qualitative improvements of the simulation results. This includes using more detailed geometry and testing an influence of variation of parameters of two implemented fouling models. An accurate estimation of these parameters requires either empirical evidence from device operation or detailed information about fly ash composition and properties, which is usually accessible only for individual fly ash constituents. The goal of the sensitivity analysis was to show influence of these parameters on deposition rates, identify insignificant parameters for the tested range of particle properties and diameters and the most significant parameters for each of the six tested fly ash size fractions. To the authors’ knowledge, such an analysis is not present in available literature. The first tested model shown that one parameter to be significantly higher compared to other, except for the smallest particles. For the second model, all parameters were found to be significant at least for one examined particle diameter. Elastic deformation, plastic deformation and adhesion are thus considered important across the tested range of particle properties and sizes, at least for the fouling model used.Jirí StrouhalTomáš JurenaZdenek JeglaAIDIC Servizi S.r.l.articleChemical engineeringTP155-156Computer engineering. Computer hardwareTK7885-7895ENChemical Engineering Transactions, Vol 88 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Chemical engineering TP155-156 Computer engineering. Computer hardware TK7885-7895
spellingShingle	Chemical engineering TP155-156 Computer engineering. Computer hardware TK7885-7895 Jirí Strouhal Tomáš Jurena Zdenek Jegla Fouling Simulations of a Passive Part of the Testing Combustion Facility
description	Results from the previous work of Strouhal et al. (2020) suggest that the used CFD fouling model together with user-implemented subroutines is not sufficient for obtaining satisfactory agreement with deposits observed in a described experimental device. The objective of this work is to create a basis for qualitative improvements of the simulation results. This includes using more detailed geometry and testing an influence of variation of parameters of two implemented fouling models. An accurate estimation of these parameters requires either empirical evidence from device operation or detailed information about fly ash composition and properties, which is usually accessible only for individual fly ash constituents. The goal of the sensitivity analysis was to show influence of these parameters on deposition rates, identify insignificant parameters for the tested range of particle properties and diameters and the most significant parameters for each of the six tested fly ash size fractions. To the authors’ knowledge, such an analysis is not present in available literature. The first tested model shown that one parameter to be significantly higher compared to other, except for the smallest particles. For the second model, all parameters were found to be significant at least for one examined particle diameter. Elastic deformation, plastic deformation and adhesion are thus considered important across the tested range of particle properties and sizes, at least for the fouling model used.
format	article
author	Jirí Strouhal Tomáš Jurena Zdenek Jegla
author_facet	Jirí Strouhal Tomáš Jurena Zdenek Jegla
author_sort	Jirí Strouhal
title	Fouling Simulations of a Passive Part of the Testing Combustion Facility
title_short	Fouling Simulations of a Passive Part of the Testing Combustion Facility
title_full	Fouling Simulations of a Passive Part of the Testing Combustion Facility
title_fullStr	Fouling Simulations of a Passive Part of the Testing Combustion Facility
title_full_unstemmed	Fouling Simulations of a Passive Part of the Testing Combustion Facility
title_sort	fouling simulations of a passive part of the testing combustion facility
publisher	AIDIC Servizi S.r.l.
publishDate	2021
url	https://doaj.org/article/72e84eb94f014384ab2a7c9ae3a481a9
work_keys_str_mv	AT jiristrouhal foulingsimulationsofapassivepartofthetestingcombustionfacility AT tomasjurena foulingsimulationsofapassivepartofthetestingcombustionfacility AT zdenekjegla foulingsimulationsofapassivepartofthetestingcombustionfacility
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Fouling Simulations of a Passive Part of the Testing Combustion Facility

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