Calculation Methods of Aircraft Engine Emissions in Accordance with Regulatory Requirements

Emisije zrakoplovnog motora vrlo su važan čimbenik kod proizvođača zrakoplova i zrakoplovnih motora. Za zračne prijevoznike u Europskoj uniji zbrinjavanje emisija predstavlja značajan trošak pri odvijanju redovitih letačkih operacija. U ovom diplomskom radu obrađen je proces izgaranja mlaznog goriva te je prezentiran sastav ispušnih plinova. Prezentirana je i razrađena regulativa, njen razvoj kroz povijest, aktualne smjernice i smjernice za razvoj regulative kroz budućnost, posebice na teritoriju Europske unije. Objašnjena je i CORSIA, kao prvi sustav smanjenja emisija na međunarodnoj razini. Europskom sustavu trgovanja emisijama stakleničkih plinova pridana je posebna važnost, s obzirom na to da su javno dostupni podaci i izračuni o emisijama odabranog zračnog prijevoznika izračunati u skladu s metodama ETS-a. Nadalje, izračunate su emisije za jedan domaći te za jedan međunarodni let za sve tipove zrakoplova u floti odabranog prijevoznika. Zaključno su rezultati izračuna uspoređeni na razini pretpandemijske 2019. godine s podacima iz 2020. i 2021. godine.Aircraft engine emissions are an important factor for both the aircraft and aircraft engine manufacturers. For EU based air carriers, emission trading and emission-related obligations represent a significant financial stake in their flight operations. In this thesis, the process of jet fuel combustion and the products of this process are explained. The regulations are presented and elaborated, both in their historical development and as guidelines for future regulation development, especially on the territory of the European Union. CORSIA, the first international emission reduction scheme is also explained. The European trading system is of vital importance for this thesis, as all the publicly available data and calculations of the emissions of the selected airline were made in accordance with its methods. Calculation of emissions has been made for one domestic and one international flight for all aircraft types in the chosen carrier's fleet. The calculation results were obtained comparing prepandemic 2019 data with data from 2020 and 2021