Green aero-engines: Technology to mitigate aviation impact on environment

Parker, R.; Lathoud, M

doi:10.1243/09544062jmes1515

Cited by 27 publications

(15 citation statements)

References 2 publications

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“…The development of aviation fuel has relied on the historical composition of fossil kerosene, putting restrictions on the requirements set out by organizations such as ASTM International or the European Committee for Standardization (CEN) [1,2]. Future "fuel design" can allow aviation to move past these limitations, by combining new approaches in fuel logistics systems and engines, optimized for next generation fuels [2][3][4]. Biofuels also have the potential to remove aviation dependence on fossil fuels, offset CO 2 emissions and hopefully reduce other harmful pollutants such as soot and its toxic precursors [5].…”

Section: Introductionmentioning

confidence: 99%

An experimental flow reactor study of the combustion kinetics of terpenoid jet fuel compounds: Farnesane, p-menthane and p-cymene

Oßwald

Whitside

Schäffer

et al. 2017

Fuel

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The combustion kinetics of three bio jet fuel compounds farnesane, p-menthane and p-cymene, derived from natural terpenoids, have been investigated experimentally by an atmospheric high temperature flow reactor coupled with molecular beam mass spectrometric detection (MBMS). Quantitative speciation data for their oxidation chemistry in combustion is presented to provide an insight into the combustion behavior and provide detailed validation data for kinetic modeling. The experimental results are compared and discussed to analyze distinct combustion phenomena such as fuel consumption pathways and soot precursor chemistry. The fuel selection focuses on biotechnologically producible terpenoid components, namely the isoalkane 2,6,10-trimethyl dodecane (farnesane), the cycloalkane 1-isopropyl-4-methylcyclohexane (p-menthane) and the branched aromatic compound 1-isopropyl-4-methylbenzene (p-cymene). Literature data on farnesane (recently approved with up to 10% blending in Jet A-1) is limited and even scarcer for the two potential synthetic fuel additive species, p-menthane and p-cymene. The comprehensive, systematic experimental speciation data set including the single fuel components for lean to rich stoichiometries (0.5 to 1.5) is available in the supplemental material to this contribution.

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Section: Introductionmentioning

confidence: 99%

An experimental flow reactor study of the combustion kinetics of terpenoid jet fuel compounds: Farnesane, p-menthane and p-cymene

Oßwald

Whitside

Schäffer

et al. 2017

Fuel

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“…Alternative fuels allow a faster benefit, since industrial assets of the aeronautical sector do not restrict their development, where high investment costs slow innovation in their production [3]. Using alternative fuels presents further advantages over the use of fossil jet fuel, as a reduced cost fluctuation, a worldwide homogeneous distribution of the feedstock and, depending on the alternative fuel production, better fuel properties [4].…”

Section: Introductionmentioning

confidence: 99%

Multiple Impinging Jet Air-Assisted Atomization

Costa

Pizziol

Panão

et al. 2017

Proceedings ILASS–Europe 2017. 28th Conference on Liquid Atomization and Spray Systems

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The growth of the aviation sector triggered the search for alternative fuels and continued improvements in the combustion process. This work addresses the technological challenges associated with spray systems and the concern of mixing biofuels with fossil fuels to produce alternative and more ecological fuels for aviation. This work proposes a new injector design based on sprays produced from the simultaneous impact of multiple jets, using an additional jet of air to assist the atomization process. The results evidence the ability to control the average drop size through the air-mass flow rate. Depending on the air-mass flow rate there is a transition between atomization by hydrodynamic breakup of the liquid sheet formed on the impact point, to an aerodynamic breakup mechanism, as found in the atomization of inclined jets under cross-flow conditions. The aerodynamic shear breakup deteriorates the atomization performance, but within the same order of magnitude. Finally, our experiments show that mixing a biofuel with a fossil fuel does not significantly alter the spray characteristics, regarded as a step further in developing alternative and more ecological fuels for aero-engines.

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“…Although there is a decrease in emissions over the years, due to new technologies employed, the speed of which can perform this benefit is compromised by the fact that airlines maintain their assets in use for about 40 years, due to the high investment cost. Thus, the new technologies have to wait until the fleet is replaced [5].…”

Section: Introductionmentioning

confidence: 99%

Zeolites as Potential Structures in Obtaining Jet Fuel Through the Fischer‐Tropsch Synthesis

Silva¹,

Silva²,

Barros³

et al. 2016

Zeolites - Useful Minerals

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Due to the constant expansion of the aviation sector, the global air industry has performed the search for alternative fuels to petroleum-derived aviation kerosene, which present low emission of greenhouse gases and other pollutants, in addition to supplying the engines and aircraft already in operation using the existing distribution infrastructure. Thus, one alternative that has been studied is the synthetic kerosene derived from gasification processes followed by Fischer-Tropsch synthesis. Several features seem to be crucial in controlling product selectivity in the aviation fuel range, among them are the zeolitic support, acidity, and promoters. Therefore, the effect of these parameters in the Fischer-Tropsch synthesis is discussed in this chapter and, finally, the zeolitic catalysts that, according to the literature, have significant potential in obtaining synthetic aviation fuel are evidenced.

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Green aero-engines: Technology to mitigate aviation impact on environment

Cited by 27 publications

References 2 publications

An experimental flow reactor study of the combustion kinetics of terpenoid jet fuel compounds: Farnesane, p-menthane and p-cymene

An experimental flow reactor study of the combustion kinetics of terpenoid jet fuel compounds: Farnesane, p-menthane and p-cymene

Multiple Impinging Jet Air-Assisted Atomization

Zeolites as Potential Structures in Obtaining Jet Fuel Through the Fischer‐Tropsch Synthesis

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