Akademik Veri Yönetim Sistemi
International Journal of Aeronautical and Space Sciences, 2025 (SCI-Expanded, Scopus)
This study analyzes the environmental and economic impacts of aircraft emissions produced during landing and takeoff (LTO) cycles at Dalaman International Airport in 2021. The objective is to quantify emissions from kerosene-based operations, estimate their external costs, and evaluate the potential benefits of hydrogen fuel as an alternative energy source. Both domestic and international flights were included, with a focus on nitrogen oxides (NOx), carbon monoxide (CO), and hydrocarbons (HC). Emissions were calculated using the IPCC Tier 2 methodology, applying both standardized and actual operational times. Flight activity data were obtained from the State Airports Authority (DHMİ), while engine data were sourced from the ICAO Engine Emissions Database. Results indicate that standardized durations tend to overestimate emissions compared to real operational conditions. The Boeing 737–800 and Airbus A320neo generated the highest emissions, with total jet fuel consumption reaching approximately 8592 tons. Under a hydrogen scenario, NOₓ emissions would be reduced by about 80%, while CO and HC emissions would be eliminated, resulting in an estimated annual external cost saving of nearly USD 2.8 million. Although challenges remain regarding hydrogen storage, liquefaction, and production costs, the findings underscore its long-term potential. This research provides the first airport-level hydrogen transition assessment for a regional airport in Türkiye based on real operational LTO data. Despite limitations such as the exclusion of contrail and water vapor effects, the results offer clear policy insights for sustainable aviation strategies and alignment with international frameworks such as CORSIA.