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Alternative sustainable aviation fuel and energy (SAFE)- A Review with selected simulation cases of study

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submitted on 2024-07-25, 12:32 and posted on 2024-07-28, 04:38 authored by Abdulkarem I. Amhamed, Anwar Hamdan Al Assaf, Laurent M. Le Page, Odi Fawwaz Alrebei

Renewable energy sources are gaining prominence as petroleum-based fuels deplete, necessitating alternative options. The aviation industry, facing increasing demand for both conventional and alternative fuels, is exploring blue hydrogen as a cleaner substitute for traditional jet fuels. This paper evaluates recent advancements in blue hydrogen production methods and hydrogen carriers such as ammonia, metal hydrides, formic acids, carbohydrates, and liquid-organic-hydrogen carriers (LOHC). Developed economies are actively researching biofuels as potential alternatives to petroleum, offering reduced emissions, enhanced fuel security, and improved sustainability. The power-to-liquid (PtL) method is employed to assess a sustainable alternative fuel, chemically matching regular jet fuel using water, CO2, and renewable energy. The study examines various biofuels and their application in aviation, comparing the techno-economic and environmental performance of PtL fuels to fossil and biomass-derived jet fuels. To estimate combustion flue gas properties, a model using Aspen Plus is developed, simulating the performance of a CFM56–7B turbofan engine with alternative fuels. Biodiesel, ethanol, n-butanol, 70% NH3–30% H2, and CH4 are evaluated, demonstrating comparable temperatures to conventional jet fuels. The NH3-H2 blend, while exhibiting lower thrust, limits the aircraft range due to reduced thrust compared to JET-A1 and kerosene-gasoline fuels. Ethanol shows slightly better thrust and range performance than the NH3-H2 blend but still falls short of conventional jet fuels. Biofuel and n-butanol emerge as promising replacements, demonstrating comparable thrust and range performance, with only a 15% reduction in aircraft range compared to JET-A1 fuel. The study provides valuable insights into the potential of these alternative fuels, emphasizing the need to consider combustion flue gas temperatures and their impact on existing power plants.

Other Information

Published in: Energy Reports
License: http://creativecommons.org/licenses/by-nc/4.0/
See article on publisher's website: https://dx.doi.org/10.1016/j.egyr.2024.03.002

Funding

Hamad Bin Khalifa University (HBKU-IN-VPR-TG-02–01).

History

Language

  • English

Publisher

Elsevier

Publication Year

  • 2024

License statement

This Item is licensed under the Creative Commons Attribution-NonCommercial 4.0 International License

Institution affiliated with

  • Hamad Bin Khalifa University
  • Qatar Environment and Energy Research Institute - HBKU

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    Qatar Environment and Energy Research Institute - HBKU

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