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The effect of swirl number on reducing emissions from liquid fuel burner system

The release of gaseous emissions such as oxides of nitrogen (NOX), and carbon monoxide (CO) into the atmosphere creates major environmental problems. These gaseous emissions affect plants, human being and animals. High concentration of emissions brings fatal effects to life form. A liquid fuel burne...

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Main Authors:	Ashrul Ishak, Mohamad Shaiful, Mohd. Jaafar, Mohammad Nazri
Format:	Article
Language:	English
Published:	Universiti Teknologi Malaysia, Faculty of Mechanical Engineering 2005
Subjects:	TJ Mechanical engineering and machinery
Online Access:	http://eprints.utm.my/id/eprint/13270/1/MohamadShaifulAshrul2005_TheEffectOfSwirlNumber.pdf http://eprints.utm.my/id/eprint/13270/ http://www.fkm.utm.my/~mekanika/Issue%2019/swirl(nazri-jilid19).pdf
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spelling	my.utm.132702017-10-12T05:15:14Z http://eprints.utm.my/id/eprint/13270/ The effect of swirl number on reducing emissions from liquid fuel burner system Ashrul Ishak, Mohamad Shaiful Mohd. Jaafar, Mohammad Nazri TJ Mechanical engineering and machinery The release of gaseous emissions such as oxides of nitrogen (NOX), and carbon monoxide (CO) into the atmosphere creates major environmental problems. These gaseous emissions affect plants, human being and animals. High concentration of emissions brings fatal effects to life form. A liquid fuel burner system with different radial air swirler vane angles with 280 mm inside diameter combustor of 1000 mm length has been investigated. All tests were conducted using diesel as fuel. A radial flow air swirler with curved blades having 50 mm outlet diameter was inserted at the inlet plane of the combustor to produce swirling flow. Fuel was injected at the back plate of the swirler outlet using central fuel injector with single fuel nozzle pointing axially outwards. The swirler vane angles and equivalence ratios were varied. Tests were carried out using eight different air swirlers having 10°, 20°, 30°, 40°, 45°, 50°, 60° and 70° vane angles. NOX reduction of more than 26 percent was obtained for the swirl number of 1.427 compared to 0.046. A turning point occurs at this stage where the emission of NOX suddenly increases about 23 percent when swirl number of 1.911. CO emissions were reduced by 33 percent, 40 percent and 48 percent reduction in carbon monoxide (CO) emission for swirl number of 0.978, 1.427 and 1.911 respectively compared to swirl number of 0.046. Meanwhile, CO2 have a stable distribution of emissions for the whole range of equivalence ratios. However, CO2 emission increases when higher vane angle swirlers were used. CO2 emissions of about 11.6 percent, 11.7 percent and 15.5 percent decrease for swirl number of 0.978, 1.427 and 1.911 respectively, compared to swirl number of 0.046 at the equivalence ratio of 0.833. Universiti Teknologi Malaysia, Faculty of Mechanical Engineering 2005-06 Article PeerReviewed application/pdf en http://eprints.utm.my/id/eprint/13270/1/MohamadShaifulAshrul2005_TheEffectOfSwirlNumber.pdf Ashrul Ishak, Mohamad Shaiful and Mohd. Jaafar, Mohammad Nazri (2005) The effect of swirl number on reducing emissions from liquid fuel burner system. Jurnal Mekanikal (19). pp. 48-56. ISSN 0127-3396 http://www.fkm.utm.my/~mekanika/Issue%2019/swirl(nazri-jilid19).pdf
institution	Universiti Teknologi Malaysia
building	UTM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Teknologi Malaysia
content_source	UTM Institutional Repository
url_provider	http://eprints.utm.my/
language	English
topic	TJ Mechanical engineering and machinery
spellingShingle	TJ Mechanical engineering and machinery Ashrul Ishak, Mohamad Shaiful Mohd. Jaafar, Mohammad Nazri The effect of swirl number on reducing emissions from liquid fuel burner system
description	The release of gaseous emissions such as oxides of nitrogen (NOX), and carbon monoxide (CO) into the atmosphere creates major environmental problems. These gaseous emissions affect plants, human being and animals. High concentration of emissions brings fatal effects to life form. A liquid fuel burner system with different radial air swirler vane angles with 280 mm inside diameter combustor of 1000 mm length has been investigated. All tests were conducted using diesel as fuel. A radial flow air swirler with curved blades having 50 mm outlet diameter was inserted at the inlet plane of the combustor to produce swirling flow. Fuel was injected at the back plate of the swirler outlet using central fuel injector with single fuel nozzle pointing axially outwards. The swirler vane angles and equivalence ratios were varied. Tests were carried out using eight different air swirlers having 10°, 20°, 30°, 40°, 45°, 50°, 60° and 70° vane angles. NOX reduction of more than 26 percent was obtained for the swirl number of 1.427 compared to 0.046. A turning point occurs at this stage where the emission of NOX suddenly increases about 23 percent when swirl number of 1.911. CO emissions were reduced by 33 percent, 40 percent and 48 percent reduction in carbon monoxide (CO) emission for swirl number of 0.978, 1.427 and 1.911 respectively compared to swirl number of 0.046. Meanwhile, CO2 have a stable distribution of emissions for the whole range of equivalence ratios. However, CO2 emission increases when higher vane angle swirlers were used. CO2 emissions of about 11.6 percent, 11.7 percent and 15.5 percent decrease for swirl number of 0.978, 1.427 and 1.911 respectively, compared to swirl number of 0.046 at the equivalence ratio of 0.833.
format	Article
author	Ashrul Ishak, Mohamad Shaiful Mohd. Jaafar, Mohammad Nazri
author_facet	Ashrul Ishak, Mohamad Shaiful Mohd. Jaafar, Mohammad Nazri
author_sort	Ashrul Ishak, Mohamad Shaiful
title	The effect of swirl number on reducing emissions from liquid fuel burner system
title_short	The effect of swirl number on reducing emissions from liquid fuel burner system
title_full	The effect of swirl number on reducing emissions from liquid fuel burner system
title_fullStr	The effect of swirl number on reducing emissions from liquid fuel burner system
title_full_unstemmed	The effect of swirl number on reducing emissions from liquid fuel burner system
title_sort	effect of swirl number on reducing emissions from liquid fuel burner system
publisher	Universiti Teknologi Malaysia, Faculty of Mechanical Engineering
publishDate	2005
url	http://eprints.utm.my/id/eprint/13270/1/MohamadShaifulAshrul2005_TheEffectOfSwirlNumber.pdf http://eprints.utm.my/id/eprint/13270/ http://www.fkm.utm.my/~mekanika/Issue%2019/swirl(nazri-jilid19).pdf
_version_	1643646153666854912
score	13.211869

The effect of swirl number on reducing emissions from liquid fuel burner system

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