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Characterisation of turbulent non-premixed hydrogen-blended flames in a scaled industrial low-swirl burner.

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Title: Characterisation of turbulent non-premixed hydrogen-blended flames in a scaled industrial low-swirl burner.
Authors: Gee, Adam J.1 (AUTHOR) adam.gee@adelaide.edu.au, Smith, Neil2 (AUTHOR), Chinnici, Alfonso1 (AUTHOR), Medwell, Paul R.1 (AUTHOR)
Source: International Journal of Hydrogen Energy. Jan2024:Part D, Vol. 49, p747-757. 11p.
Subjects: Hydrogen flames, Flame, Heat radiation & absorption, Air warfare, Natural gas
Abstract: The performance of a scaled industrial, non-premixed, low-swirl burner design was experimentally investigated for hydrogen addition to natural gas. Two strategies for introducing hydrogen are considered, namely, conserving (i) heat input and (ii) velocity/volumetric flow of the original fuel. This work characterises the effects on key performance metrics of the burner as hydrogen fraction is increased. Compared with natural gas, the results with hydrogen showed a 33 % reduction in the radiant fraction and up to a 380 % increase in NOx emissions. The lift-off height was reduced by a maximum of 23 % and 51 % for addition of 10 and 30 vol% hydrogen addition, respectively, with 100 % cases becoming completely attached to the burner. The influence of hydrogen-addition strategy and air adjustment was shown to be significant with respect to NOx emissions but less significant than the resulting changes in fuel composition and heat input with respect to flame appearance, stability and radiant heat transfer. • H 2 and air addition strategies less significant than heat input and fuel composition. • Radiant fraction reduced by 33 % by operating with pure H 2. • NOx emissions increased by 380 % by operating with pure H 2. • H 2 reduced lift-off height, becoming reattached at 100 vol% H 2. [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
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  Availability: 0
Header DbId: egs
DbLabel: Engineering Source
An: 174060211
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Label: Title
  Group: Ti
  Data: Characterisation of turbulent non-premixed hydrogen-blended flames in a scaled industrial low-swirl burner.
– Name: Author
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  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="%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)
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  Data: <searchLink fieldCode="JN" term="%22International+Journal+of+Hydrogen+Energy%22">International Journal of Hydrogen Energy</searchLink>. Jan2024:Part D, Vol. 49, p747-757. 11p.
– Name: Subject
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  Data: <searchLink fieldCode="DE" term="%22Hydrogen+flames%22">Hydrogen flames</searchLink><br /><searchLink fieldCode="DE" term="%22Flame%22">Flame</searchLink><br /><searchLink fieldCode="DE" term="%22Heat+radiation+%26+absorption%22">Heat radiation & absorption</searchLink><br /><searchLink fieldCode="DE" term="%22Air+warfare%22">Air warfare</searchLink><br /><searchLink fieldCode="DE" term="%22Natural+gas%22">Natural gas</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: The performance of a scaled industrial, non-premixed, low-swirl burner design was experimentally investigated for hydrogen addition to natural gas. Two strategies for introducing hydrogen are considered, namely, conserving (i) heat input and (ii) velocity/volumetric flow of the original fuel. This work characterises the effects on key performance metrics of the burner as hydrogen fraction is increased. Compared with natural gas, the results with hydrogen showed a 33 % reduction in the radiant fraction and up to a 380 % increase in NOx emissions. The lift-off height was reduced by a maximum of 23 % and 51 % for addition of 10 and 30 vol% hydrogen addition, respectively, with 100 % cases becoming completely attached to the burner. The influence of hydrogen-addition strategy and air adjustment was shown to be significant with respect to NOx emissions but less significant than the resulting changes in fuel composition and heat input with respect to flame appearance, stability and radiant heat transfer. • H 2 and air addition strategies less significant than heat input and fuel composition. • Radiant fraction reduced by 33 % by operating with pure H 2. • NOx emissions increased by 380 % by operating with pure H 2. • H 2 reduced lift-off height, becoming reattached at 100 vol% H 2. [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.2023.11.164
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 11
        StartPage: 747
    Subjects:
      – SubjectFull: Hydrogen flames
        Type: general
      – SubjectFull: Flame
        Type: general
      – SubjectFull: Heat radiation & absorption
        Type: general
      – SubjectFull: Air warfare
        Type: general
      – SubjectFull: Natural gas
        Type: general
    Titles:
      – TitleFull: Characterisation of turbulent non-premixed hydrogen-blended flames in a scaled industrial low-swirl burner.
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            NameFull: Gee, Adam J.
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            NameFull: Smith, Neil
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            NameFull: Chinnici, Alfonso
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            NameFull: Medwell, Paul R.
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          Dates:
            – D: 06
              M: 01
              Text: Jan2024:Part D
              Type: published
              Y: 2024
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              Value: 03603199
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              Value: 49
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            – TitleFull: International Journal of Hydrogen Energy
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