Impact of Sustainable Aviation Fuels on Performance Parameters of Small Turbojet Engine

master's thesis

• Title (croatian): Utjecaj održivih zrakoplovnih goriva na parametre performansi malog turbomlaznog motora
• Author: Ivan Martinović
• Mentor: Anita Domitrović (mentor)
• Committee member: Biljana Juričić (predsjednik povjerenstva)
• Committee member: David Gerhardinger (član povjerenstva)
• Committee member: Diana Božić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Transport and Traffic Sciences; (Division of Aeronautics); (Department of Aeronautics); Zagreb
• Defense date and country: 2024-09-27, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Traffic and Transport Technology; Air Traffic

Abstract

This thesis investigates the impact of Sustainable Aviation Fuels (SAF) on the performance of
small turbojet engines, with a focus on the JJ1400 engine model. As the aviation industry seeks
to reduce its carbon footprint, SAF presents a promising alternative to conventional Jet A fuel
due to its potential to lower greenhouse gas emissions and contribute to the long-term
sustainability of aviation. The study assesses how SAF blends, specifically mixtures involving
Jet A and biodiesel components like FAME, affect critical engine performance parameters,
including thrust, fuel consumption, exhaust gas temperature (EGT), and rotational speed
(RPM). Experimental tests were conducted to compare the performance of the turbojet engine
running on Jet A and various SAF blends. The results highlight the differences in efficiency,
emissions, and thermal behavior under different fuel compositions. This research contributes to
the broader discussion on decarbonizing aviation and explores the practical challenges and
opportunities in the use of SAF in real-world aviation applications.

Abstract (croatian)

Ovaj rad istražuje utjecaj održivih zrakoplovnih goriva (SAF) na performanse malih
turbomlaznih motora, s posebnim naglaskom na model motora JJ1400. Kako zrakoplovna
industrija nastoji smanjiti svoj ugljični otisak, SAF predstavlja obećavajuću alternativu
konvencionalnom gorivu Jet A zbog svog potencijala za smanjenje emisije stakleničkih plinova
i doprinos dugoročnoj održivosti zrakoplovstva. Studija procjenjuje kako mješavine SAF-a,
posebno kombinacije Jet A i komponenti biodizela poput FAME-a, utječu na ključne parametre
performansi motora, uključujući potisak, potrošnju goriva, temperaturu ispušnih plinova (EGT)
i brzinu rotacije (RPM). Provedeni su eksperimentalni testovi kako bi se usporedile
performanse turbomlaznog motora koji koristi Jet A i različite mješavine SAF-a. Rezultati ističu
razlike u učinkovitosti, emisijama i toplinskom ponašanju pod različitim sastavima goriva. Ova
istraživanja pridonose širem dijalogu o dekarbonizaciji zrakoplovstva i istražuju praktične
izazove i mogućnosti upotrebe SAF-a u stvarnim zrakoplovnim aplikacijama.

• Keywords: aviation; sustainability; fuels; SAF; FAME; blends; turbojet engine; thrust; EGT; RPM
• Keywords (croatian): zrakoplovstvo; održivost; goriva; SAF; FAME; mješavine; turbomlazni motor; potisak; EGT; RPM
• Language: english
• URN:NBN: urn:nbn:hr:119:945775
• Study programme: Title: Aeronautics; Study programme type: university; Study level: graduate; Academic / professional title: sveučilišni/a magistar/magistra inženjer/inženjerka aeronautike (sveučilišni/a magistar/magistra inženjer/inženjerka aeronautike)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2024-11-29 13:16:32