View in EDS

Combustion characterization of the mixtures biogas-syngas, strain rate and ambient pressure effects.

Saved in:
Bibliographic Details
Title: Combustion characterization of the mixtures biogas-syngas, strain rate and ambient pressure effects.
Authors: Mameri, Abdelbaki1 (AUTHOR) mameriabdelbaki@yahoo.fr, Boussetla, Selsabil1 (AUTHOR), Belalmi, Rabab2 (AUTHOR), Aouachria, Zeroual2 (AUTHOR)
Source: International Journal of Hydrogen Energy. Aug2019, Vol. 44 Issue 39, p22478-22491. 14p.
Subjects: Flame temperature, Strain rate, Flame, Biogas, Pressure
Abstract: The use of biofuels in applications of interest requires knowledge of behavior of their flames under various working conditions. This paper aims at demonstrating the effect of strain rate and ambient pressure on laminar diffusion flames structure and extinction temperature limits of biogas-syngas mixtures. Opposed-flow configuration is adopted over a wide interval of strain rate (nearly from ignition to extinction) and ambient pressure (from 1 to 10 atm). Chemical kinetics is described by GRI-Mech 3.0 mechanism and Chemkin program used to solve the problem. Results revealed that increase of hydrogen volume in syngas highly enlarges strain rate extinction limits and keeps extinction temperature nearly constant. On the other hand, methane volume augmentation in biogas preserves approximately extinction strain rate and improves extinction temperature. Besides, it has been observed that increasing strain rate enhances non-equilibrium effects and radical production; whereas, it reduces temperature and final combustion products. It has been established that ambient pressure has opposite role of strain rate except for flame thickness. Results showed that in this kind of flames, for the cases of low strain rate and pressure or high strain rate and pressure, the NO species production is governed by the NO 2 route. For the other cases, the prompt route is preferred and the thermal path is the least favored and disabled at elevated pressures. Reaction zone thickness is almost constant for all compositions; however, it is reduced by pressure and strain rate augmentations. • Reactants high injection velocities (strain rates) are allowed if rich H 2 syngas is added to biogas. • High velocity injection and pressure cannot be used in processes involving radiative heat losses. • In biogas-syngas diffusion flames, the most NO favored paths are the NO 2 and the prompt routes. • The NO production can be avoided by using lean CH4 biogas of working at high strain rate. [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
Header DbId: egs
DbLabel: Engineering Source
An: 137946968
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
IllustrationInfo
Items – Name: Title
  Label: Title
  Group: Ti
  Data: Combustion characterization of the mixtures biogas-syngas, strain rate and ambient pressure effects.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Mameri%2C+Abdelbaki%22">Mameri, Abdelbaki</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> mameriabdelbaki@yahoo.fr</i><br /><searchLink fieldCode="AR" term="%22Boussetla%2C+Selsabil%22">Boussetla, Selsabil</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Belalmi%2C+Rabab%22">Belalmi, Rabab</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Aouachria%2C+Zeroual%22">Aouachria, Zeroual</searchLink><relatesTo>2</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>. Aug2019, Vol. 44 Issue 39, p22478-22491. 14p.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Flame+temperature%22">Flame temperature</searchLink><br /><searchLink fieldCode="DE" term="%22Strain+rate%22">Strain rate</searchLink><br /><searchLink fieldCode="DE" term="%22Flame%22">Flame</searchLink><br /><searchLink fieldCode="DE" term="%22Biogas%22">Biogas</searchLink><br /><searchLink fieldCode="DE" term="%22Pressure%22">Pressure</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: The use of biofuels in applications of interest requires knowledge of behavior of their flames under various working conditions. This paper aims at demonstrating the effect of strain rate and ambient pressure on laminar diffusion flames structure and extinction temperature limits of biogas-syngas mixtures. Opposed-flow configuration is adopted over a wide interval of strain rate (nearly from ignition to extinction) and ambient pressure (from 1 to 10 atm). Chemical kinetics is described by GRI-Mech 3.0 mechanism and Chemkin program used to solve the problem. Results revealed that increase of hydrogen volume in syngas highly enlarges strain rate extinction limits and keeps extinction temperature nearly constant. On the other hand, methane volume augmentation in biogas preserves approximately extinction strain rate and improves extinction temperature. Besides, it has been observed that increasing strain rate enhances non-equilibrium effects and radical production; whereas, it reduces temperature and final combustion products. It has been established that ambient pressure has opposite role of strain rate except for flame thickness. Results showed that in this kind of flames, for the cases of low strain rate and pressure or high strain rate and pressure, the NO species production is governed by the NO 2 route. For the other cases, the prompt route is preferred and the thermal path is the least favored and disabled at elevated pressures. Reaction zone thickness is almost constant for all compositions; however, it is reduced by pressure and strain rate augmentations. • Reactants high injection velocities (strain rates) are allowed if rich H 2 syngas is added to biogas. • High velocity injection and pressure cannot be used in processes involving radiative heat losses. • In biogas-syngas diffusion flames, the most NO favored paths are the NO 2 and the prompt routes. • The NO production can be avoided by using lean CH4 biogas of working at high strain rate. [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.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=137946968
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1016/j.ijhydene.2019.05.142
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 14
        StartPage: 22478
    Subjects:
      – SubjectFull: Flame temperature
        Type: general
      – SubjectFull: Strain rate
        Type: general
      – SubjectFull: Flame
        Type: general
      – SubjectFull: Biogas
        Type: general
      – SubjectFull: Pressure
        Type: general
    Titles:
      – TitleFull: Combustion characterization of the mixtures biogas-syngas, strain rate and ambient pressure effects.
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Mameri, Abdelbaki
      – PersonEntity:
          Name:
            NameFull: Boussetla, Selsabil
      – PersonEntity:
          Name:
            NameFull: Belalmi, Rabab
      – PersonEntity:
          Name:
            NameFull: Aouachria, Zeroual
    IsPartOfRelationships:
      – BibEntity:
          Dates:
            – D: 13
              M: 08
              Text: Aug2019
              Type: published
              Y: 2019
          Identifiers:
            – Type: issn-print
              Value: 03603199
          Numbering:
            – Type: volume
              Value: 44
            – Type: issue
              Value: 39
          Titles:
            – TitleFull: International Journal of Hydrogen Energy
              Type: main
ResultId 1