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A platform for research: civil engineering, architecture and urbanism
An assessment of cruise NOx emissions of short-haul commercial flights
https://orcid.org/0000-0002-9601-2318
AbstractCruise NOx emissions of aircraft are an important input parameter for studies investigating climate change due to their ability to alter the concentrations of certain trace gases, such as ozone, methane, and hydroxyl in the atmosphere, and to induce positive radiative forcing. Therefore, it is of importance to minimize estimation errors on NOx emitted from aircraft engines at high altitude. In this study, the cruise NOx emissions of a frequently-used narrow-bodied aircraft type operating domestic flights in Turkey, are quantified based on numerous actual flight, actual emissions and actual meteorological data. The overall average cruise NOx emissions index is found to be ∼10 g/kg fuel. In addition, newly-developed parameters of the aircraft cruise NOx footprint and NOx intensity are calculated to be 0.5 g/pa-NM and ∼60 g/NM, respectively. Regarding the effects of flight parameters on cruise NOx emissions, while there is a distinct increase in NOx parameters with an increase in aircraft mass, this may differ for altitude. The results reveal that the NOx emissions index tends to increase slightly by 1–2%, particularly above 28,000 ft, whereas NOx intensity decreases at a rate of 2.4–2.7% per 2000 ft of cruise altitude increase.
HighlightsNew NOx parameters are developed for cruise flight.NOx emission indices are compared to those based on ICAO NOx measurements.The effects of aircraft mass and altitude on cruise NOx emissions are analyzed.NOx emissions per passenger for short-haul flights are quantified.
An assessment of cruise NOx emissions of short-haul commercial flights
https://orcid.org/0000-0002-9601-2318
AbstractCruise NOx emissions of aircraft are an important input parameter for studies investigating climate change due to their ability to alter the concentrations of certain trace gases, such as ozone, methane, and hydroxyl in the atmosphere, and to induce positive radiative forcing. Therefore, it is of importance to minimize estimation errors on NOx emitted from aircraft engines at high altitude. In this study, the cruise NOx emissions of a frequently-used narrow-bodied aircraft type operating domestic flights in Turkey, are quantified based on numerous actual flight, actual emissions and actual meteorological data. The overall average cruise NOx emissions index is found to be ∼10 g/kg fuel. In addition, newly-developed parameters of the aircraft cruise NOx footprint and NOx intensity are calculated to be 0.5 g/pa-NM and ∼60 g/NM, respectively. Regarding the effects of flight parameters on cruise NOx emissions, while there is a distinct increase in NOx parameters with an increase in aircraft mass, this may differ for altitude. The results reveal that the NOx emissions index tends to increase slightly by 1–2%, particularly above 28,000 ft, whereas NOx intensity decreases at a rate of 2.4–2.7% per 2000 ft of cruise altitude increase.
HighlightsNew NOx parameters are developed for cruise flight.NOx emission indices are compared to those based on ICAO NOx measurements.The effects of aircraft mass and altitude on cruise NOx emissions are analyzed.NOx emissions per passenger for short-haul flights are quantified.
An assessment of cruise NOx emissions of short-haul commercial flights
https://orcid.org/0000-0002-9601-2318
AbstractCruise NOx emissions of aircraft are an important input parameter for studies investigating climate change due to their ability to alter the concentrations of certain trace gases, such as ozone, methane, and hydroxyl in the atmosphere, and to induce positive radiative forcing. Therefore, it is of importance to minimize estimation errors on NOx emitted from aircraft engines at high altitude. In this study, the cruise NOx emissions of a frequently-used narrow-bodied aircraft type operating domestic flights in Turkey, are quantified based on numerous actual flight, actual emissions and actual meteorological data. The overall average cruise NOx emissions index is found to be ∼10 g/kg fuel. In addition, newly-developed parameters of the aircraft cruise NOx footprint and NOx intensity are calculated to be 0.5 g/pa-NM and ∼60 g/NM, respectively. Regarding the effects of flight parameters on cruise NOx emissions, while there is a distinct increase in NOx parameters with an increase in aircraft mass, this may differ for altitude. The results reveal that the NOx emissions index tends to increase slightly by 1–2%, particularly above 28,000 ft, whereas NOx intensity decreases at a rate of 2.4–2.7% per 2000 ft of cruise altitude increase.
HighlightsNew NOx parameters are developed for cruise flight.NOx emission indices are compared to those based on ICAO NOx measurements.The effects of aircraft mass and altitude on cruise NOx emissions are analyzed.NOx emissions per passenger for short-haul flights are quantified.
An assessment of cruise NOx emissions of short-haul commercial flights
Turgut, Enis T. (author) / Usanmaz, Oznur (author)
Atmospheric Environment ; 171 ; 191-204
2017-10-06
14 pages
Article (Journal)
Electronic Resource
English
| British Library Online Contents | 2013