Experimental investigation of chemiluminescence and NOx emission characteristics in a lean premixed dual-swirl flame

Temperature and radical concentration are the two most important factors affecting NOx emissions in the methane combustion, while chemiluminescence is from the radiative transition of excited radicals, related to the heat release closely. Accordingly, there must be an implicit link between NOx forma...

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Autores principales:	Yao Liu, Jianguo Tan, Zhengwang Gao, Taiyu Wang, Minggang Wan
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Chemiluminescence NOx emission Dual-swirl flame Combustion Engineering (General). Civil engineering (General) TA1-2040
Acceso en línea:	https://doaj.org/article/b77895e6b9fa48588db227d98bb94305
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spelling	oai:doaj.org-article:b77895e6b9fa48588db227d98bb943052021-11-24T04:30:39ZExperimental investigation of chemiluminescence and NOx emission characteristics in a lean premixed dual-swirl flame2214-157X10.1016/j.csite.2021.101653https://doaj.org/article/b77895e6b9fa48588db227d98bb943052021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2214157X21008169https://doaj.org/toc/2214-157XTemperature and radical concentration are the two most important factors affecting NOx emissions in the methane combustion, while chemiluminescence is from the radiative transition of excited radicals, related to the heat release closely. Accordingly, there must be an implicit link between NOx formation and chemiluminescence. Chemiluminescence and NOx emission characteristics under various equivalent ratios (φ) and swirl numbers (S) have been investigated in a lean premixed dual-swirl flame. The results show that φ and S have different effects on chemiluminescence intensities and flame structures, and the change trend of NOx emissions is the same as chemiluminescence intensities. More importantly, a linear relationship between chemiluminescence intensities and NOx emissions was proposed and tested, making it possible to monitor NOx emissions in combustion by the non-intrusive and cost-effective chemiluminescence technique.Yao LiuJianguo TanZhengwang GaoTaiyu WangMinggang WanElsevierarticleChemiluminescenceNOx emissionDual-swirl flameCombustionEngineering (General). Civil engineering (General)TA1-2040ENCase Studies in Thermal Engineering, Vol 28, Iss , Pp 101653- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Chemiluminescence NOx emission Dual-swirl flame Combustion Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	Chemiluminescence NOx emission Dual-swirl flame Combustion Engineering (General). Civil engineering (General) TA1-2040 Yao Liu Jianguo Tan Zhengwang Gao Taiyu Wang Minggang Wan Experimental investigation of chemiluminescence and NOx emission characteristics in a lean premixed dual-swirl flame
description	Temperature and radical concentration are the two most important factors affecting NOx emissions in the methane combustion, while chemiluminescence is from the radiative transition of excited radicals, related to the heat release closely. Accordingly, there must be an implicit link between NOx formation and chemiluminescence. Chemiluminescence and NOx emission characteristics under various equivalent ratios (φ) and swirl numbers (S) have been investigated in a lean premixed dual-swirl flame. The results show that φ and S have different effects on chemiluminescence intensities and flame structures, and the change trend of NOx emissions is the same as chemiluminescence intensities. More importantly, a linear relationship between chemiluminescence intensities and NOx emissions was proposed and tested, making it possible to monitor NOx emissions in combustion by the non-intrusive and cost-effective chemiluminescence technique.
format	article
author	Yao Liu Jianguo Tan Zhengwang Gao Taiyu Wang Minggang Wan
author_facet	Yao Liu Jianguo Tan Zhengwang Gao Taiyu Wang Minggang Wan
author_sort	Yao Liu
title	Experimental investigation of chemiluminescence and NOx emission characteristics in a lean premixed dual-swirl flame
title_short	Experimental investigation of chemiluminescence and NOx emission characteristics in a lean premixed dual-swirl flame
title_full	Experimental investigation of chemiluminescence and NOx emission characteristics in a lean premixed dual-swirl flame
title_fullStr	Experimental investigation of chemiluminescence and NOx emission characteristics in a lean premixed dual-swirl flame
title_full_unstemmed	Experimental investigation of chemiluminescence and NOx emission characteristics in a lean premixed dual-swirl flame
title_sort	experimental investigation of chemiluminescence and nox emission characteristics in a lean premixed dual-swirl flame
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/b77895e6b9fa48588db227d98bb94305
work_keys_str_mv	AT yaoliu experimentalinvestigationofchemiluminescenceandnoxemissioncharacteristicsinaleanpremixeddualswirlflame AT jianguotan experimentalinvestigationofchemiluminescenceandnoxemissioncharacteristicsinaleanpremixeddualswirlflame AT zhengwanggao experimentalinvestigationofchemiluminescenceandnoxemissioncharacteristicsinaleanpremixeddualswirlflame AT taiyuwang experimentalinvestigationofchemiluminescenceandnoxemissioncharacteristicsinaleanpremixeddualswirlflame AT minggangwan experimentalinvestigationofchemiluminescenceandnoxemissioncharacteristicsinaleanpremixeddualswirlflame
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Experimental investigation of chemiluminescence and NOx emission characteristics in a lean premixed dual-swirl flame

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