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The Impact of Intermolecular Interactions in Sustainable Aviation Fuels on Turbine Engine Parameters.

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Title: The Impact of Intermolecular Interactions in Sustainable Aviation Fuels on Turbine Engine Parameters.
Authors: Białecki, Tomasz1 (AUTHOR), Gawron, Bartosz1,2 (AUTHOR), Kulczycki, Andrzej1 (AUTHOR), Łęgowik, Anna1,2 (AUTHOR), Merkisz, Jerzy2 (AUTHOR) jerzy.merkisz@put.poznan.pl
Source: Energies (19961073). Dec2025, Vol. 18 Issue 24, p6523. 19p.
Subjects: Intermolecular interactions, Combustion kinetics, Thermodynamics, Combustion efficiency, Synthetic fuels, Combustion, Gas turbines, Aircraft fuels
Abstract: This study investigates the effect of the concentration of sustainable jet fuel components on selected physicochemical properties of blends with fossil Jet A-1 fuel, as well as on parameters characterizing the combustion process in aircraft turbine engines. The analyzed physicochemical properties were density, net heat of combustion, and fractional composition (50% recoverey temperature and viscosity at −20 °C) of the fuel blends. The combustion process was examined using test rigs equipped with GTM 140 and DGEN 380 engines operated at different rotational speeds. For each engine speed, the fuel mass flow rate and the combustion chamber temperature were determined. The functions mf = Ae^(−Ea/RT) were derived, corresponding to the kinetic equations of the complete combustion reaction chain. The (Ea/R)mf values obtained using the trend line method for the GTM 140 engine were found to be linearly related to those obtained for the DGEN 380 engine. A deviation from linearity was observed for blends containing 5% of various synthetic components. These findings support a new hypothesis that the same intermolecular interactions between liquid fuel components that account for the non-additivity of physicochemical properties also contribute to the parameters of combustion kinetics in turbine engines. Tests on the turbine engine provided preliminary validation of this hypothesis. [ABSTRACT FROM AUTHOR]
Copyright of Energies (19961073) is the property of MDPI 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.)
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Header DbId: egs
DbLabel: Engineering Source
An: 190470638
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PubType: Academic Journal
PubTypeId: academicJournal
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  Data: The Impact of Intermolecular Interactions in Sustainable Aviation Fuels on Turbine Engine Parameters.
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  Data: <searchLink fieldCode="AR" term="%22Białecki%2C+Tomasz%22">Białecki, Tomasz</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Gawron%2C+Bartosz%22">Gawron, Bartosz</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Kulczycki%2C+Andrzej%22">Kulczycki, Andrzej</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Łęgowik%2C+Anna%22">Łęgowik, Anna</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Merkisz%2C+Jerzy%22">Merkisz, Jerzy</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> jerzy.merkisz@put.poznan.pl</i>
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  Data: <searchLink fieldCode="JN" term="%22Energies+%2819961073%29%22">Energies (19961073)</searchLink>. Dec2025, Vol. 18 Issue 24, p6523. 19p.
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  Data: <searchLink fieldCode="DE" term="%22Intermolecular+interactions%22">Intermolecular interactions</searchLink><br /><searchLink fieldCode="DE" term="%22Combustion+kinetics%22">Combustion kinetics</searchLink><br /><searchLink fieldCode="DE" term="%22Thermodynamics%22">Thermodynamics</searchLink><br /><searchLink fieldCode="DE" term="%22Combustion+efficiency%22">Combustion efficiency</searchLink><br /><searchLink fieldCode="DE" term="%22Synthetic+fuels%22">Synthetic fuels</searchLink><br /><searchLink fieldCode="DE" term="%22Combustion%22">Combustion</searchLink><br /><searchLink fieldCode="DE" term="%22Gas+turbines%22">Gas turbines</searchLink><br /><searchLink fieldCode="DE" term="%22Aircraft+fuels%22">Aircraft fuels</searchLink>
– Name: Abstract
  Label: Abstract
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  Data: This study investigates the effect of the concentration of sustainable jet fuel components on selected physicochemical properties of blends with fossil Jet A-1 fuel, as well as on parameters characterizing the combustion process in aircraft turbine engines. The analyzed physicochemical properties were density, net heat of combustion, and fractional composition (50% recoverey temperature and viscosity at −20 °C) of the fuel blends. The combustion process was examined using test rigs equipped with GTM 140 and DGEN 380 engines operated at different rotational speeds. For each engine speed, the fuel mass flow rate and the combustion chamber temperature were determined. The functions mf = Ae^(−Ea/RT) were derived, corresponding to the kinetic equations of the complete combustion reaction chain. The (Ea/R)mf values obtained using the trend line method for the GTM 140 engine were found to be linearly related to those obtained for the DGEN 380 engine. A deviation from linearity was observed for blends containing 5% of various synthetic components. These findings support a new hypothesis that the same intermolecular interactions between liquid fuel components that account for the non-additivity of physicochemical properties also contribute to the parameters of combustion kinetics in turbine engines. Tests on the turbine engine provided preliminary validation of this hypothesis. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Energies (19961073) is the property of MDPI 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: 10.3390/en18246523
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      – Code: eng
        Text: English
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        PageCount: 19
        StartPage: 6523
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      – SubjectFull: Intermolecular interactions
        Type: general
      – SubjectFull: Combustion kinetics
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      – SubjectFull: Thermodynamics
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      – SubjectFull: Combustion efficiency
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      – SubjectFull: Synthetic fuels
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      – SubjectFull: Combustion
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      – SubjectFull: Gas turbines
        Type: general
      – SubjectFull: Aircraft fuels
        Type: general
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      – TitleFull: The Impact of Intermolecular Interactions in Sustainable Aviation Fuels on Turbine Engine Parameters.
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            NameFull: Białecki, Tomasz
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              Text: Dec2025
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              Y: 2025
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