Regulatory gaps in nvPM and non-CO2 aviation-emission standard under SAF adoption pathways

SIMRAN GOSWAMI

Non-Volatile Particulate Matter (nvPM) emission requirements in the aviation industry are examined in depth in this dissertation. The research analyses the present available technologies to measure the number concentration as well as the mass of aerosol particles in order to compare it with the aircraft emissions. For the same ICAO compliant sampling and measurement system was deployed. A System Loss Tool (SLT)has been proposed to predict engine exit plan concentrations from the regulatory measurements. Various soloutions were used to measure the number and mass concentrations of nvPM particles which includes NaCl, DEHS (high flow and low flow across equipment’s like SMPS, ELPI+ and DMS-500. It also analyses the present regulations and determines if they are still appropriate in light of future developments such as incorporation of upcoming technology and sustainable aviation fuels. Along with regulations, it has also been highlighted that how important it is for the government, policy makers and other stakeholders to come together and deal with the issue of nvPM emissions, its measurement and its reduction. This research discusses that system particle loss correction has the potential to predict the emissions by correcting the particle loss. It is also demonstrated that an instrument with particle size distribution of all the sizes and number can have the significant impact for future directions.