Laminar Burning Velocity in Aviation Fuels: Conventional Kerosene, SAFs, and Key Hydrocarbon Components
Sustainable aviation fuels (SAFs) are vitally important for aviation decarbonization. The laminar burning velocity (LBV), a key parameter reflecting the combustion behavior of fuel/oxidizer mixtures, serves as a fundamental metric for evaluating SAF performance. This paper systematically reviews and...
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MDPI AG
2025-07-01
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| Online Access: | https://www.mdpi.com/2076-3417/15/14/8098 |
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| author | Zehua Song Xinsai Yan Ziyu Liu Xiaoyi Yang |
| author_facet | Zehua Song Xinsai Yan Ziyu Liu Xiaoyi Yang |
| author_sort | Zehua Song |
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| description | Sustainable aviation fuels (SAFs) are vitally important for aviation decarbonization. The laminar burning velocity (LBV), a key parameter reflecting the combustion behavior of fuel/oxidizer mixtures, serves as a fundamental metric for evaluating SAF performance. This paper systematically reviews and evaluates the LBV experiment method and the performance of traditional aviation fuel, SAFs produced via different pathways, and individual components (n-alkanes, iso-alkanes, cycloalkanes, and aromatic hydrocarbons, as well as the impacts of isomers and homologues) in aviation fuels. It is found that LBV values of different SAFs exhibit significant fluctuations, approaching or slightly deviating from those of conventional aviation fuels. Carbon number, branching degree, substituent types, and testing methods in the components all affect LBV performance. Specifically, increased branching in iso-alkanes reduces LBV, cyclohexane and benzene show higher LBV than their methylated counterparts (methylcyclohexane and toluene), and n-alkylcyclohexanes/benzenes with short (C1–C3) side chains demonstrate minimal LBV variation. Spherical flame methods yield more consistent (and generally lower) LBV values than stagnation flame techniques. These findings provide insights for optimizing SAF–conventional fuel blends and enhancing drop-in compatibility while ensuring operational safety and usability. |
| format | Article |
| id | doaj-art-d8f4f6f3923e4b9da5de6929e377b11e |
| institution | Matheson Library |
| issn | 2076-3417 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | MDPI AG |
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| series | Applied Sciences |
| spelling | doaj-art-d8f4f6f3923e4b9da5de6929e377b11e2025-07-25T13:13:11ZengMDPI AGApplied Sciences2076-34172025-07-011514809810.3390/app15148098Laminar Burning Velocity in Aviation Fuels: Conventional Kerosene, SAFs, and Key Hydrocarbon ComponentsZehua Song0Xinsai Yan1Ziyu Liu2Xiaoyi Yang3School of Energy and Power Engineering, Energy and Environment International Centre, Beihang University, Beijing 100191, ChinaSchool of Energy and Power Engineering, Energy and Environment International Centre, Beihang University, Beijing 100191, ChinaSchool of Aeronautic Science and Engineering, Beihang University, Beijing 100191, ChinaSchool of Energy and Power Engineering, Energy and Environment International Centre, Beihang University, Beijing 100191, ChinaSustainable aviation fuels (SAFs) are vitally important for aviation decarbonization. The laminar burning velocity (LBV), a key parameter reflecting the combustion behavior of fuel/oxidizer mixtures, serves as a fundamental metric for evaluating SAF performance. This paper systematically reviews and evaluates the LBV experiment method and the performance of traditional aviation fuel, SAFs produced via different pathways, and individual components (n-alkanes, iso-alkanes, cycloalkanes, and aromatic hydrocarbons, as well as the impacts of isomers and homologues) in aviation fuels. It is found that LBV values of different SAFs exhibit significant fluctuations, approaching or slightly deviating from those of conventional aviation fuels. Carbon number, branching degree, substituent types, and testing methods in the components all affect LBV performance. Specifically, increased branching in iso-alkanes reduces LBV, cyclohexane and benzene show higher LBV than their methylated counterparts (methylcyclohexane and toluene), and n-alkylcyclohexanes/benzenes with short (C1–C3) side chains demonstrate minimal LBV variation. Spherical flame methods yield more consistent (and generally lower) LBV values than stagnation flame techniques. These findings provide insights for optimizing SAF–conventional fuel blends and enhancing drop-in compatibility while ensuring operational safety and usability.https://www.mdpi.com/2076-3417/15/14/8098LBVconventional aviation fuelsSAFssynthetic fuelsbio-jet fuelaviation fuel components |
| spellingShingle | Zehua Song Xinsai Yan Ziyu Liu Xiaoyi Yang Laminar Burning Velocity in Aviation Fuels: Conventional Kerosene, SAFs, and Key Hydrocarbon Components Applied Sciences LBV conventional aviation fuels SAFs synthetic fuels bio-jet fuel aviation fuel components |
| title | Laminar Burning Velocity in Aviation Fuels: Conventional Kerosene, SAFs, and Key Hydrocarbon Components |
| title_full | Laminar Burning Velocity in Aviation Fuels: Conventional Kerosene, SAFs, and Key Hydrocarbon Components |
| title_fullStr | Laminar Burning Velocity in Aviation Fuels: Conventional Kerosene, SAFs, and Key Hydrocarbon Components |
| title_full_unstemmed | Laminar Burning Velocity in Aviation Fuels: Conventional Kerosene, SAFs, and Key Hydrocarbon Components |
| title_short | Laminar Burning Velocity in Aviation Fuels: Conventional Kerosene, SAFs, and Key Hydrocarbon Components |
| title_sort | laminar burning velocity in aviation fuels conventional kerosene safs and key hydrocarbon components |
| topic | LBV conventional aviation fuels SAFs synthetic fuels bio-jet fuel aviation fuel components |
| url | https://www.mdpi.com/2076-3417/15/14/8098 |
| work_keys_str_mv | AT zehuasong laminarburningvelocityinaviationfuelsconventionalkerosenesafsandkeyhydrocarboncomponents AT xinsaiyan laminarburningvelocityinaviationfuelsconventionalkerosenesafsandkeyhydrocarboncomponents AT ziyuliu laminarburningvelocityinaviationfuelsconventionalkerosenesafsandkeyhydrocarboncomponents AT xiaoyiyang laminarburningvelocityinaviationfuelsconventionalkerosenesafsandkeyhydrocarboncomponents |