Development of an Efficient Modelling Approach for Fin-Type Heat-Exchangers in Self-Recuperative Burners

Self-recuperative burners are a common solution for efficient combustion systems in industrial furnaces. Due to the geometric complexity of the recuperators, a detailed CFD simulation is computationally expensive and not feasible for simulation models of burner-integrated systems such as radiant tub...

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Autores principales:	Nicolas Dinsing, Nico Schmitz, Christian Schubert, Herbert Pfeifer
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	computational fluid dynamics heat transfer industrial furnace radiant tube self-recuperative burner fin-type heat exchanger Technology T
Acceso en línea:	https://doaj.org/article/16c778ecbd0b40c69e9d43fbcecec0e6
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spelling	oai:doaj.org-article:16c778ecbd0b40c69e9d43fbcecec0e62021-11-11T15:43:36ZDevelopment of an Efficient Modelling Approach for Fin-Type Heat-Exchangers in Self-Recuperative Burners10.3390/en142168731996-1073https://doaj.org/article/16c778ecbd0b40c69e9d43fbcecec0e62021-10-01T00:00:00Zhttps://www.mdpi.com/1996-1073/14/21/6873https://doaj.org/toc/1996-1073Self-recuperative burners are a common solution for efficient combustion systems in industrial furnaces. Due to the geometric complexity of the recuperators, a detailed CFD simulation is computationally expensive and not feasible for simulation models of burner-integrated systems such as radiant tubes. Especially in the FSI studies of radiant tubes, the temperature of the radiant tube surrounding the burner is decisive for the final results. The exclusion of the recuperator from the simulation models introduces significant uncertainties in the simulations results. The presented paper describes an innovative, efficient approach to model a fin-type recuperator in which the recuperator is geometrically reduced. The resulting acceleration of the numerical simulation makes a fully dynamic modelling of the recuperator in a radiant tube simulation possible. Specifically designed source terms are used to model pressure loss and heat transfer inside the recuperator to match results obtained with a detailed simulation model. The results show deviations in total heat transfer of less than 1.3% with a 98.5% reduction of numerical mesh size. The computational savings enable comprehensive modelling of air preheat for radiant tube simulations and accurately replicate flow and temperature profiles in the recuperator.Nicolas DinsingNico SchmitzChristian SchubertHerbert PfeiferMDPI AGarticlecomputational fluid dynamicsheat transferindustrial furnaceradiant tubeself-recuperative burnerfin-type heat exchangerTechnologyTENEnergies, Vol 14, Iss 6873, p 6873 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	computational fluid dynamics heat transfer industrial furnace radiant tube self-recuperative burner fin-type heat exchanger Technology T
spellingShingle	computational fluid dynamics heat transfer industrial furnace radiant tube self-recuperative burner fin-type heat exchanger Technology T Nicolas Dinsing Nico Schmitz Christian Schubert Herbert Pfeifer Development of an Efficient Modelling Approach for Fin-Type Heat-Exchangers in Self-Recuperative Burners
description	Self-recuperative burners are a common solution for efficient combustion systems in industrial furnaces. Due to the geometric complexity of the recuperators, a detailed CFD simulation is computationally expensive and not feasible for simulation models of burner-integrated systems such as radiant tubes. Especially in the FSI studies of radiant tubes, the temperature of the radiant tube surrounding the burner is decisive for the final results. The exclusion of the recuperator from the simulation models introduces significant uncertainties in the simulations results. The presented paper describes an innovative, efficient approach to model a fin-type recuperator in which the recuperator is geometrically reduced. The resulting acceleration of the numerical simulation makes a fully dynamic modelling of the recuperator in a radiant tube simulation possible. Specifically designed source terms are used to model pressure loss and heat transfer inside the recuperator to match results obtained with a detailed simulation model. The results show deviations in total heat transfer of less than 1.3% with a 98.5% reduction of numerical mesh size. The computational savings enable comprehensive modelling of air preheat for radiant tube simulations and accurately replicate flow and temperature profiles in the recuperator.
format	article
author	Nicolas Dinsing Nico Schmitz Christian Schubert Herbert Pfeifer
author_facet	Nicolas Dinsing Nico Schmitz Christian Schubert Herbert Pfeifer
author_sort	Nicolas Dinsing
title	Development of an Efficient Modelling Approach for Fin-Type Heat-Exchangers in Self-Recuperative Burners
title_short	Development of an Efficient Modelling Approach for Fin-Type Heat-Exchangers in Self-Recuperative Burners
title_full	Development of an Efficient Modelling Approach for Fin-Type Heat-Exchangers in Self-Recuperative Burners
title_fullStr	Development of an Efficient Modelling Approach for Fin-Type Heat-Exchangers in Self-Recuperative Burners
title_full_unstemmed	Development of an Efficient Modelling Approach for Fin-Type Heat-Exchangers in Self-Recuperative Burners
title_sort	development of an efficient modelling approach for fin-type heat-exchangers in self-recuperative burners
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/16c778ecbd0b40c69e9d43fbcecec0e6
work_keys_str_mv	AT nicolasdinsing developmentofanefficientmodellingapproachforfintypeheatexchangersinselfrecuperativeburners AT nicoschmitz developmentofanefficientmodellingapproachforfintypeheatexchangersinselfrecuperativeburners AT christianschubert developmentofanefficientmodellingapproachforfintypeheatexchangersinselfrecuperativeburners AT herbertpfeifer developmentofanefficientmodellingapproachforfintypeheatexchangersinselfrecuperativeburners
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Development of an Efficient Modelling Approach for Fin-Type Heat-Exchangers in Self-Recuperative Burners

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