Aerosol Emissions from a Turbofan Jet Engine using Sustainable Aviation Fuel
(2025) MAMM05 20251Ergonomics and Aerosol Technology
- Abstract
- This thesis investigates particulate matter emissions from a turbofan jet engine operated with fossil Jet A fuel and mixtures of Jet A and sustainable aviation fuel (SAF), focusing on particle size distributions and total emission concentrations. The aim was to evaluate emissions from different fuel blends and sampling points, assess the performance of the designed sampling and dilution system, and consider potential high-altitude environmental implications. Measurements were conducted using a Fast Particle Sizer (DMS 500) during engine operation at four thrust levels defined by the ICAO landing and take-off cycle. The set-up was partly based on the ICAO reference sampling system. Three different fuel blends were tested, and emissions were... (More)
- This thesis investigates particulate matter emissions from a turbofan jet engine operated with fossil Jet A fuel and mixtures of Jet A and sustainable aviation fuel (SAF), focusing on particle size distributions and total emission concentrations. The aim was to evaluate emissions from different fuel blends and sampling points, assess the performance of the designed sampling and dilution system, and consider potential high-altitude environmental implications. Measurements were conducted using a Fast Particle Sizer (DMS 500) during engine operation at four thrust levels defined by the ICAO landing and take-off cycle. The set-up was partly based on the ICAO reference sampling system. Three different fuel blends were tested, and emissions were sampled from three axial positions. Data were adjusted for dilution and analysed for particle size distributions and emission indices. The results show significantly lower particle emissions for the SAF blends, with the largest reductions observed at lower thrust levels and for the highest blend ratio of SAF (75%), resulting in reductions exceeding 80%. Two modes were fitted to the particle number size distributions, nucleation mode (~20 nm) and accumulation mode (~40 nm), with slightly smaller particle diameters measured for SAF blends. It was concluded that the measurement set-up functioned effectively, with repeatable dilution. These findings support further implementation of SAF to mitigate climate change and health impacts of aviation-induced particulate emissions. (Less)
Please use this url to cite or link to this publication:
http://lup.lub.lu.se/student-papers/record/9209555
- author
- Lynghed, Hanne LU
- supervisor
- organization
- course
- MAMM05 20251
- year
- 2025
- type
- H2 - Master's Degree (Two Years)
- subject
- language
- English
- id
- 9209555
- date added to LUP
- 2025-08-11 11:34:38
- date last changed
- 2025-08-11 11:34:38
@misc{9209555,
abstract = {{This thesis investigates particulate matter emissions from a turbofan jet engine operated with fossil Jet A fuel and mixtures of Jet A and sustainable aviation fuel (SAF), focusing on particle size distributions and total emission concentrations. The aim was to evaluate emissions from different fuel blends and sampling points, assess the performance of the designed sampling and dilution system, and consider potential high-altitude environmental implications. Measurements were conducted using a Fast Particle Sizer (DMS 500) during engine operation at four thrust levels defined by the ICAO landing and take-off cycle. The set-up was partly based on the ICAO reference sampling system. Three different fuel blends were tested, and emissions were sampled from three axial positions. Data were adjusted for dilution and analysed for particle size distributions and emission indices. The results show significantly lower particle emissions for the SAF blends, with the largest reductions observed at lower thrust levels and for the highest blend ratio of SAF (75%), resulting in reductions exceeding 80%. Two modes were fitted to the particle number size distributions, nucleation mode (~20 nm) and accumulation mode (~40 nm), with slightly smaller particle diameters measured for SAF blends. It was concluded that the measurement set-up functioned effectively, with repeatable dilution. These findings support further implementation of SAF to mitigate climate change and health impacts of aviation-induced particulate emissions.}},
author = {{Lynghed, Hanne}},
language = {{eng}},
note = {{Student Paper}},
title = {{Aerosol Emissions from a Turbofan Jet Engine using Sustainable Aviation Fuel}},
year = {{2025}},
}