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Fuel rich ammonia-hydrogen injection for humidified gas turbines.

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Title: Fuel rich ammonia-hydrogen injection for humidified gas turbines.
Authors: Guteša Božo, M.1 (AUTHOR) milanagutesabozo@termoinzinjering.rs, Vigueras-Zuniga, MO.1 (AUTHOR) mvigueras@uv.mx, Buffi, M.1 (AUTHOR) marco.buffi@unifi.it, Seljak, T.1 (AUTHOR) tine.seljak@fs.uni-lj.si, Valera-Medina, A.1 (AUTHOR) valeramedinaa1@cardiff.ac.uk
Source: Applied Energy. Oct2019, Vol. 251, pN.PAG-N.PAG. 1p.
Subjects: Nitrogen oxides, Renewable energy sources, Gas turbines, Power resources, Fossil fuels, Gas injection
Abstract: • Ammonia is a promising chemical for energy storage and distribution of hydrogen. • Ammonia-hydrogen blends under humidified conditions have been assessed. • Steam addition ∼0.4 steam/fuel ratio provides efficiency as current fossil cycles. • Flames under moderate humidified ammonia-hydrogen conditions have good stability. • Nitrogen oxides can be mitigated by steam injection when employing ammonia fueling. The use of new fuels and operating strategies for gas turbine technologies plays a relevant component for carbon emissions reduction and the use of sustainable energy sources. Among non-carbon fuels, hydrogen-based fuels have been proposed as one of the main strategies for decarbonisation of the power sector. Ammonia is a good representative of these fuels as it is carbon-free and the second largest chemical commodity, having been produced worldwide for more than a century from various energy resources, i.e. fossil fuels, biomass or other renewable sources. However, the use of ammonia as a fuel in industrial gas turbines brings some practical challenges directly linked to the final efficiency of these systems, especially when the latter are compared to current Dry Low Nitrogen Oxides technologies. Thus, this work covers a series of analytical, numerical and experimental studies performed to determine the efficiency of using ammonia/hydrogen blends in combination with humidified methodologies to deliver competitive systems for the use of ammonia-hydrogen power generation. The study was conducted using CHEMKIN-PRO reaction networks employing novel reaction chemical kinetics, in combination with bespoke analytical codes to determine efficiencies of systems previously calibrated experimentally. Finally, experimental trials using steam injection were carried out to determine potential of these blends. The novel results demonstrate that the use of humidified ammonia-hydrogen injection provides similar efficiencies to both Dry Low Nitrogen Oxides and humidified methane-based technologies ∼30%, with flames that are stable and low polluting under swirling conditions, thus opening the opportunity for further progression on the topic. [ABSTRACT FROM AUTHOR]
Copyright of Applied Energy is the property of Elsevier B.V. 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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Header DbId: egs
DbLabel: Engineering Source
An: 138156183
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Data: Fuel rich ammonia-hydrogen injection for humidified gas turbines.
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  Data: <searchLink fieldCode="AR" term="%22Guteša+Božo%2C+M%2E%22">Guteša Božo, M.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> milanagutesabozo@termoinzinjering.rs</i><br /><searchLink fieldCode="AR" term="%22Vigueras-Zuniga%2C+MO%2E%22">Vigueras-Zuniga, MO.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> mvigueras@uv.mx</i><br /><searchLink fieldCode="AR" term="%22Buffi%2C+M%2E%22">Buffi, M.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> marco.buffi@unifi.it</i><br /><searchLink fieldCode="AR" term="%22Seljak%2C+T%2E%22">Seljak, T.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> tine.seljak@fs.uni-lj.si</i><br /><searchLink fieldCode="AR" term="%22Valera-Medina%2C+A%2E%22">Valera-Medina, A.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> valeramedinaa1@cardiff.ac.uk</i>
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  Data: <searchLink fieldCode="JN" term="%22Applied+Energy%22">Applied Energy</searchLink>. Oct2019, Vol. 251, pN.PAG-N.PAG. 1p.
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  Data: <searchLink fieldCode="DE" term="%22Nitrogen+oxides%22">Nitrogen oxides</searchLink><br /><searchLink fieldCode="DE" term="%22Renewable+energy+sources%22">Renewable energy sources</searchLink><br /><searchLink fieldCode="DE" term="%22Gas+turbines%22">Gas turbines</searchLink><br /><searchLink fieldCode="DE" term="%22Power+resources%22">Power resources</searchLink><br /><searchLink fieldCode="DE" term="%22Fossil+fuels%22">Fossil fuels</searchLink><br /><searchLink fieldCode="DE" term="%22Gas+injection%22">Gas injection</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: • Ammonia is a promising chemical for energy storage and distribution of hydrogen. • Ammonia-hydrogen blends under humidified conditions have been assessed. • Steam addition ∼0.4 steam/fuel ratio provides efficiency as current fossil cycles. • Flames under moderate humidified ammonia-hydrogen conditions have good stability. • Nitrogen oxides can be mitigated by steam injection when employing ammonia fueling. The use of new fuels and operating strategies for gas turbine technologies plays a relevant component for carbon emissions reduction and the use of sustainable energy sources. Among non-carbon fuels, hydrogen-based fuels have been proposed as one of the main strategies for decarbonisation of the power sector. Ammonia is a good representative of these fuels as it is carbon-free and the second largest chemical commodity, having been produced worldwide for more than a century from various energy resources, i.e. fossil fuels, biomass or other renewable sources. However, the use of ammonia as a fuel in industrial gas turbines brings some practical challenges directly linked to the final efficiency of these systems, especially when the latter are compared to current Dry Low Nitrogen Oxides technologies. Thus, this work covers a series of analytical, numerical and experimental studies performed to determine the efficiency of using ammonia/hydrogen blends in combination with humidified methodologies to deliver competitive systems for the use of ammonia-hydrogen power generation. The study was conducted using CHEMKIN-PRO reaction networks employing novel reaction chemical kinetics, in combination with bespoke analytical codes to determine efficiencies of systems previously calibrated experimentally. Finally, experimental trials using steam injection were carried out to determine potential of these blends. The novel results demonstrate that the use of humidified ammonia-hydrogen injection provides similar efficiencies to both Dry Low Nitrogen Oxides and humidified methane-based technologies ∼30%, with flames that are stable and low polluting under swirling conditions, thus opening the opportunity for further progression on the topic. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Applied Energy is the property of Elsevier B.V. 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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        Value: 10.1016/j.apenergy.2019.113334
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      – Code: eng
        Text: English
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    Subjects:
      – SubjectFull: Nitrogen oxides
        Type: general
      – SubjectFull: Renewable energy sources
        Type: general
      – SubjectFull: Gas turbines
        Type: general
      – SubjectFull: Power resources
        Type: general
      – SubjectFull: Fossil fuels
        Type: general
      – SubjectFull: Gas injection
        Type: general
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      – TitleFull: Fuel rich ammonia-hydrogen injection for humidified gas turbines.
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            NameFull: Guteša Božo, M.
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              Text: Oct2019
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              Value: 251
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