Heutige und zukünftige Kraftstoffe für Brennstoffzellen in der Luftfahrt

Peters, Ralf

doi:10.1007/978-3-662-46798-5_2

Cited by 3 publications

(3 citation statements)

References 58 publications

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“…An overview of today's biofuels-especially for aircraft applications-is given by Peters [68]. In this review, the origin of different biomass sources, their composition and production pathways were discussed in detail.…”

Section: Biofuelsmentioning

confidence: 99%

“…Short-rotation coppice such as willow and poplar, or miscanthus grass, reach a harvesting rate of up to 12 t of dry biomass per hectare. More details are provided by Peters [73] Figure 7 shows different concepts for biofuels from biomass, such as fast-growing cultivated wood, bio-oil-containing crops, residual wood, and straw. The Bioliq process [74][75][76][77] favors the local pyrolysis of straw and a central gasification and synthesis.…”

Section: Biofuelsmentioning

confidence: 99%

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Future Power Train Solutions for Long-Haul Trucks

et al. 2021

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Achieving the CO2 reduction targets for 2050 requires extensive measures being undertaken in all sectors. In contrast to energy generation, the transport sector has not yet been able to achieve a substantive reduction in CO2 emissions. Measures for the ever more pressing reduction in CO2 emissions from transportation include the increased use of electric vehicles powered by batteries or fuel cells. The use of fuel cells requires the production of hydrogen and the establishment of a corresponding hydrogen production system and associated infrastructure. Synthetic fuels made using carbon dioxide and sustainably-produced hydrogen can be used in the existing infrastructure and will reach the extant vehicle fleet in the medium term. All three options require a major expansion of the generation capacities for renewable electricity. Moreover, various options for road freight transport with light duty vehicles (LDVs) and heavy duty vehicles (HDVs) are analyzed and compared. In addition to efficiency throughout the entire value chain, well-to-wheel efficiency and also other aspects play an important role in this comparison. These include: (a) the possibility of large-scale energy storage in the sense of so-called ‘sector coupling’, which is offered only by hydrogen and synthetic energy sources; (b) the use of the existing fueling station infrastructure and the applicability of the new technology on the existing fleet; (c) fulfilling the power and range requirements of the long-distance road transport.

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Section: Biofuelsmentioning

confidence: 99%

Section: Biofuelsmentioning

confidence: 99%

Future Power Train Solutions for Long-Haul Trucks

et al. 2021

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“…Particularly in urban regions, vehicles powered by fuel cells can help to reduce pollutant emissions. However, due to its high power density, low operating temperature, and noiseless operation, a PEM fuel cell can be used not only in the vehicle sector but also in aviation and shipping [1,2].…”

Section: Introductionmentioning

confidence: 99%

Analysis of Ice Formation during Start-Up of PEM Fuel Cells at Subzero Temperatures Using Experimental and Simulative Methods

Schmitz,

Bahr,

Gößling

et al. 2023

Energies

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Freeze start is a challenge in the commercialization of PEM fuel cells. In this study, ice formation in cell layers is investigated through experiments and simulations. Segmentation of the fuel cell on the test bench allows to determine the local distributions of current density and high frequency resistance over the active cell area. The location and timing of ice formation are analyzed in the experiments. It is shown that the formation of ice lenses can be detected by local measurements of the high frequency resistances. Then, a multiphysical CFD model is built and validated with the measurements and the commonalities and differences between the model results and the experiments are studied. It is shown that the model determines the freeze start behavior very well in wide operating ranges. Together with the findings from the experimental investigations, the model will finally be used to investigate local ice formation in detail.

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Analyse und Bewertung vorhandener und alternativer Lenkungsinstrumente zur Markteinführung erneuerbarer Flugkraftstoffe

Bullerdiek

Kaltschmitt

2020

Z Energiewirtsch

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Heutige und zukünftige Kraftstoffe für Brennstoffzellen in der Luftfahrt

Cited by 3 publications

References 58 publications

Future Power Train Solutions for Long-Haul Trucks

Future Power Train Solutions for Long-Haul Trucks

Analysis of Ice Formation during Start-Up of PEM Fuel Cells at Subzero Temperatures Using Experimental and Simulative Methods

Analyse und Bewertung vorhandener und alternativer Lenkungsinstrumente zur Markteinführung erneuerbarer Flugkraftstoffe

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