Hydrogen addition to a commercial self-aspirating burner and assessment of a practical burner modification strategy to improve performance.
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| Title: | Hydrogen addition to a commercial self-aspirating burner and assessment of a practical burner modification strategy to improve performance. |
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| Authors: | Gee, Adam J.1 (AUTHOR) adam.gee@adelaide.edu.au, Proud, Douglas B.1 (AUTHOR), Smith, Neil2 (AUTHOR), Chinnici, Alfonso1 (AUTHOR), Medwell, Paul R.1 (AUTHOR) |
| Source: | International Journal of Hydrogen Energy. Jan2024:Part B, Vol. 49, p59-76. 18p. |
| Subjects: | Heat radiation & absorption, Hydrogen, Alternative fuels, Diameter, Nitrogen oxides emission control |
| Abstract: | The ability for existing burners to operate safely and efficiently on hydrogen-blended fuels is a primary concern for the many industries looking to adopt hydrogen as an alternative fuel. This study investigates the efficacy of increasing fuel injector diameter as a simple modification strategy to extend the hydrogen-blending limits before flashback. The collateral effects of this modification are quantified with respect to a set of key performance criteria. The results show that the unmodified burner can sustain up to 50 vol% hydrogen addition before flashback. Increasing the fuel injector diameter reduces primary aeration, allowing for stable operation on up to 100% hydrogen. The flame length, visibility and radiant heat transfer properties are all increased as a result of the reduced air entrainment with a trade-off reported for NOx emissions, where, in addition to the effects of hydrogen, reducing air entrainment further increases NOx emissions. • Flashback limit of a self-aspirating burner extended up to 100 vol% H 2 by increasing d jet. • Primary air entrainment is reduced by increasing d jet. • Positive non-linear relationship between equivalence ratio and flame length. • Negligible reductions in radiant heat transfer with H 2 addition under in modified burner. • Negative linear relationship between NOx emissions and equivalence ratio. [ABSTRACT FROM AUTHOR] |
| Copyright of International Journal of Hydrogen Energy is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 174104394 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Hydrogen addition to a commercial self-aspirating burner and assessment of a practical burner modification strategy to improve performance. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Gee%2C+Adam+J%2E%22">Gee, Adam J.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> adam.gee@adelaide.edu.au</i><br /><searchLink fieldCode="AR" term="%22Proud%2C+Douglas+B%2E%22">Proud, Douglas B.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Smith%2C+Neil%22">Smith, Neil</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Chinnici%2C+Alfonso%22">Chinnici, Alfonso</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Medwell%2C+Paul+R%2E%22">Medwell, Paul R.</searchLink><relatesTo>1</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22International+Journal+of+Hydrogen+Energy%22">International Journal of Hydrogen Energy</searchLink>. Jan2024:Part B, Vol. 49, p59-76. 18p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Heat+radiation+%26+absorption%22">Heat radiation & absorption</searchLink><br /><searchLink fieldCode="DE" term="%22Hydrogen%22">Hydrogen</searchLink><br /><searchLink fieldCode="DE" term="%22Alternative+fuels%22">Alternative fuels</searchLink><br /><searchLink fieldCode="DE" term="%22Diameter%22">Diameter</searchLink><br /><searchLink fieldCode="DE" term="%22Nitrogen+oxides+emission+control%22">Nitrogen oxides emission control</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: The ability for existing burners to operate safely and efficiently on hydrogen-blended fuels is a primary concern for the many industries looking to adopt hydrogen as an alternative fuel. This study investigates the efficacy of increasing fuel injector diameter as a simple modification strategy to extend the hydrogen-blending limits before flashback. The collateral effects of this modification are quantified with respect to a set of key performance criteria. The results show that the unmodified burner can sustain up to 50 vol% hydrogen addition before flashback. Increasing the fuel injector diameter reduces primary aeration, allowing for stable operation on up to 100% hydrogen. The flame length, visibility and radiant heat transfer properties are all increased as a result of the reduced air entrainment with a trade-off reported for NOx emissions, where, in addition to the effects of hydrogen, reducing air entrainment further increases NOx emissions. • Flashback limit of a self-aspirating burner extended up to 100 vol% H 2 by increasing d jet. • Primary air entrainment is reduced by increasing d jet. • Positive non-linear relationship between equivalence ratio and flame length. • Negligible reductions in radiant heat transfer with H 2 addition under in modified burner. • Negative linear relationship between NOx emissions and equivalence ratio. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of International Journal of Hydrogen Energy is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.ijhydene.2023.06.230 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 18 StartPage: 59 Subjects: – SubjectFull: Heat radiation & absorption Type: general – SubjectFull: Hydrogen Type: general – SubjectFull: Alternative fuels Type: general – SubjectFull: Diameter Type: general – SubjectFull: Nitrogen oxides emission control Type: general Titles: – TitleFull: Hydrogen addition to a commercial self-aspirating burner and assessment of a practical burner modification strategy to improve performance. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Gee, Adam J. – PersonEntity: Name: NameFull: Proud, Douglas B. – PersonEntity: Name: NameFull: Smith, Neil – PersonEntity: Name: NameFull: Chinnici, Alfonso – PersonEntity: Name: NameFull: Medwell, Paul R. IsPartOfRelationships: – BibEntity: Dates: – D: 03 M: 01 Text: Jan2024:Part B Type: published Y: 2024 Identifiers: – Type: issn-print Value: 03603199 Numbering: – Type: volume Value: 49 Titles: – TitleFull: International Journal of Hydrogen Energy Type: main |
| ResultId | 1 |
