Publication detail
Utilising CFD software for low NOx Burner design
HÁJEK, J. KERMES, V. BROŽ, F. STEHLÍK, P. ČANĚK, J. ORAL, J.
Czech title
Využití CFD pro návrhy hořáků se sníženými emisemi oxidů dusíku
English title
Utilising CFD software for low NOx Burner design
Type
conference paper
Language
en
Original abstract
Due to high costs of measurements in industrial combustion units as well as in experimental furnaces, there is a steady grow in the usage of computational methods for assessment of the performance of burners and other combustion devices. However, computational fluid dynamics (CFD) technology that is employed in these simulations is not yet fully mature and therefore experimental validation is usually still required. In this presentation we relate experimental results obtained in a test furnace for an industrial low-NOx burner and complement them with results from a CFD simulation. Furthermore, these two sets of results are studied in a common framework of a simplified approach for NOx emissions prediction. The burner used for this work has staged inlet ports (nozzles) both for fuel and combustion air. This arrangement is proven to provide very low NOx emission levels but there are many design parameters that play major role in the actual performance of the burner and experimental optimisation of all of these is out of question. Therefore, numerical predictions are of primary importance for optimisation of burner performance.
Czech abstract
Z důvodu stále rostoucích nákladů na měření v průmyslových spalovacích jednotkách i v experimentálních zařízeních, jsme svědky trvalého růstu využívání výpočtových metod pro vyhodnocení provozních parametrů hořáků a dalších spalovacích zařízení. Přesto, výpočtová dynamika tekutin (CFD), která se v těchto případech používá, není dosud plně vyvinutou a ověřenou technolgií a proto přetrvává potřeba ověřování výsledků pomocí měření. V tomto příspěvku jsou představeny experimentálně získané výsledky z testovací komory pro průmyslový hořák se sníženými emisemi NOx, které jsou doplněny výsledky ze CFD simulace. Kromě toho, tyto dvě skupiny výsledků jsou studovány ve společném rámci zjednodušeného přístupu k predikci emisí NOx.
English abstract
Due to high costs of measurements in industrial combustion units as well as in experimental furnaces, there is a steady grow in the usage of computational methods for assessment of the performance of burners and other combustion devices. However, computational fluid dynamics (CFD) technology that is employed in these simulations is not yet fully mature and therefore experimental validation is usually still required. In this presentation we relate experimental results obtained in a test furnace for an industrial low-NOx burner and complement them with results from a CFD simulation. Furthermore, these two sets of results are studied in a common framework of a simplified approach for NOx emissions prediction. The burner used for this work has staged inlet ports (nozzles) both for fuel and combustion air. This arrangement is proven to provide very low NOx emission levels but there are many design parameters that play major role in the actual performance of the burner and experimental optimisation of all of these is out of question. Therefore, numerical predictions are of primary importance for optimisation of burner performance.
Keywords in Czech
CFD, nízko-emisní hořáky, zemní plyn, metan
Keywords in English
CFD, low-nox burners, gas combustion
Released
25.09.2003
Location
Granada, Spain
Book
Proceedings of 4th European Congress in Chemical Engineering
Pages count
3
BIBTEX
@inproceedings{BUT22457,
author="Jiří {Hájek} and Vít {Kermes} and František {Brož} and Petr {Stehlík} and Josef {Čaněk} and Jaroslav {Oral},
title="Utilising CFD software for low NOx Burner design",
booktitle="Proceedings of 4th European Congress in Chemical Engineering",
year="2003",
month="September",
address="Granada, Spain"
}