Modeling the impact of sustainable aviation fuel properties on end-use performance and emissions in aircraft jet engines

Kroyan, Yuri; Wojcieszyk, Michał; Kaario, Ossi; Larmi, Martti

doi:10.1016/j.energy.2022.124470

Cited by 30 publications

(6 citation statements)

References 33 publications

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“…FT-IR spectra representing the blends consisting of kerosene and biodiesel are shown in Figures 13-15. As it can be observed in Figures [13][14][15], the main differences between the spectra of the regular aviation fuel (Ke) and the blends are at 1280 cm -1 representing the presence of ethers (C-O-C) and esters (C=O) groups. The obtaining of biodiesel is a succession of etherification followed by esterification reactions, therefore ether and ester groups are present within the structure.…”

Section: Ft-ir Analysismentioning

confidence: 83%

Theoretical Assessment of Different Aviation Fuel Blends Based on Their Physical-Chemical Properties

Mirea,

Cican

2023

Preprint

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The study within the current research is focused on theoretical assessment of sustainable aviation fuels (SAF) obtained by blending traditional jet fuels Jet A and different liquids (biodiesel and alcohols) from analytical point of view. Within this paper in-depth analysis ofthe physical-chemical properties of Jet A fuel blended with different biodiesels and alcohols has been performed. Also within the blends Aeroshell 500 oil has been added (5% vol.) for ensuring the lubrication of the turbo engine. The blends consists of: Jet Aaviation fuel + biodieselfrom: palm oil, pork fat, sunflower oil and alcohols: methanol, ethanol and butanol. All the 6 liquids have been blended with Jet A in the following percentages: 10, 20 and 30%. Flash point, kinematic viscosity, density, freezing point, elemental analysis and FTIR analysis have been performed for all the liquids: Aeroshell 500, jet A, jet A + 10, 20, 30% biodiesel from waste palm oil, pork fat and waste sunflower oil, jet A + 10, 20, 30% methanol, ethanol and butanol, biodiesels and alcohols. The obtained results shows the influence of each of the blend’s components on the physical-chemical properties of the blends. Based on the physical-chemical analysis of the blends, conclusions on the behavior of the blends during burning and the gaseous pollutants resulting from the burning process can be drawn.

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Section: Ft-ir Analysismentioning

confidence: 83%

Theoretical Assessment of Different Aviation Fuel Blends Based on Their Physical-Chemical Properties

Mirea,

Cican

2023

Preprint

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“…Process modeling has been used as an alternative to engine tests to try to determine how well SAF would perform in use. The process simulation is based on measured fuel properties and experimental data from the literature.Kroyan et al 36 developed a mathematical model to estimate the influence of the chemical properties of SAF on fuel consumption and engine performance. The effect of the viscosity, hydrocarbon content, density, and lower heating values of the SAF was used to investigate the relationship between fuel consumption and fuel properties.Quan et al 37 also aimed to correlate the fuel qualities to their combustion characteristics for alternative biofuels because assessment of engine performance with alternative fuel mixtures is rarely found in previous literature.…”

Section: Sustainable Aviation Fuel Propertiesmentioning

confidence: 99%

Multi-criteria decision analysis for the evaluation and screening of sustainable aviation fuel production pathways

Okolie,

Awotoye,

Tabat

et al. 2023

iScience

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“…However, these models do not describe the cause-and-effect relationships between the kinetics of combustion and engine operation. Some teams conduct research in this direction [22], but the proposed models either require a description of individual reactions in fuel combustion chains or are based on statistical methods. In this case, empirically determined parameter values cannot be physically interpreted, and these values refer only to a limited group of fuels.…”

Section: Introductionmentioning

confidence: 99%

Empirical Modeling of Synthetic Fuel Combustion in a Small Turbofan

Kulczycki,

Przysowa,

Białecki

et al. 2024

Energies

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Drop-in fuels for aviation gas-turbine engines have been introduced recently to mitigate global warming. Despite their similarity to the fossil fuel Jet A-1, their combustion in traditional combustors should be thoroughly analyzed to maintain engine health and low emissions. The paper introduces criteria for assessing the impact of the chemical composition of fuels on combustion in the DEGN 380 turbofan. Based on previous emission-test results, the power functions of carbon monoxide and its emission index were adopted as the model of combustion. Based on the general notation of chemical reactions leading to the production of CO in combustion, the regression coefficients were given a physical meaning by linking them with the parameters of the kinetic equations, i.e., the reaction rate constant of CO and CO2 formation expressed as exponential functions of combustor outlet temperature and the concentration of O2 in the exhaust gas, as well as stoichiometric combustion reactions. The obtained empirical functions show that, in the entire range of engine operating parameters, synthetic components affect the values of the rate constants of CO and CO2 formation. It can be explained by the change in activation energy determined for all chain-of-combustion reactions. The activation energy for the CO formation chain changes in the range between 8.5 kJ/mol for A0 and 24.7 kJ/mol for A30, while for the CO2 formation chain between 29.8 kJ/mol for A0 and 30.8 kJ/mol for A30. The reactivity coefficient lnαiCOACODCO changes between 2.29 for A0 and 6.44 for A30, while lnαiCO2ACO2DCO2 changes between 7.90 for A0 and 8.08 for A30.

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Modeling the impact of sustainable aviation fuel properties on end-use performance and emissions in aircraft jet engines

Cited by 30 publications

References 33 publications

Theoretical Assessment of Different Aviation Fuel Blends Based on Their Physical-Chemical Properties

Theoretical Assessment of Different Aviation Fuel Blends Based on Their Physical-Chemical Properties

Multi-criteria decision analysis for the evaluation and screening of sustainable aviation fuel production pathways

Empirical Modeling of Synthetic Fuel Combustion in a Small Turbofan

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