Eco-Friendly Skies DOI

Mandeep Kaur,

Amrik Singh,

Amandeep Kaur

et al.

Advances in marketing, customer relationship management, and e-services book series, Journal Year: 2024, Volume and Issue: unknown, P. 151 - 182

Published: Dec. 13, 2024

Sustainable marketing promotes products and services that prioritize environmental social responsibility. in the aviation industry is not just a trend but necessity face of growing concerns. The industry, pillar global connectivity economic progress, under increasing pressure to address its impact. challenge balance demand for air travel with need reduce carbon footprints degradation. This chapter will cover theoretical foundations, existing practices, methodology establishing effective sustainable strategies, thereby providing road map navigate complicated landscape sustainability. implications these strategies are far-reaching, offering only benefits, also gains, goodwill, revolutionary impact on whole industry.

Language: Английский

Assessing the particulate matter emission reduction characteristics of small turbofan engine fueled with 100 % HEFA sustainable aviation fuel DOI
Zheng Xu, Minghua Wang, Liuyong Chang

et al.

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 945, P. 174128 - 174128

Published: June 20, 2024

Language: Английский

Citations

27

Global aviation contrail climate effects from 2019 to 2021 DOI Creative Commons

Roger Teoh,

Zebediah Engberg,

U. Schumann

et al.

Atmospheric chemistry and physics, Journal Year: 2024, Volume and Issue: 24(10), P. 6071 - 6093

Published: May 27, 2024

Abstract. The current best-estimate of the global annual mean radiative forcing (RF) attributable to contrail cirrus is thought be 3 times larger than RF from aviation's cumulative CO2 emissions. Here, we simulate for 2019–2021 using reanalysis weather data and improved engine emission estimates along actual flight trajectories derived Automatic Dependent Surveillance–Broadcast telemetry. Our 2019 net (62.1 mW m−2) 44 % lower best 2018 (111 [33, 189] m−2, 95 confidence interval). Regionally, largest over Europe (876 USA (414 m−2), while values East Asia (64 China (62 are close average, because fewer flights in these regions form persistent contrails resulting cruise altitudes limited ice supersaturated subtropics due Hadley Circulation. Globally, COVID-19 reduced distance flown 2020 (−43 −56 %, respectively, relative 2019) 2021 (−31 −49 respectively) with significant regional variations. Around 14 all formed a warming effect, yet only 2 caused 80 energy forcing. spatiotemporal patterns most strongly cooling segments can attributed scheduling, particle number emissions, tropopause height, background radiation fields. sensitive corrections applied humidity fields, followed by assumptions on least heating effects plume contrail–contrail overlapping. Using this sensitivity analysis, estimate that could range between 34.8 74.8 m−2.

Language: Английский

Citations

14

The scientific basis of ‘net zero emissions’ and its diverging sociopolitical representation DOI
Susanne Becken, Graham Miller, David S. Lee

et al.

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 918, P. 170725 - 170725

Published: Feb. 5, 2024

Language: Английский

Citations

6

Characterizing and Predicting nvPM Size Distributions for Aviation Emission Inventories and Environmental Impact DOI Creative Commons
Lukáš Ďurdina, Eliot Durand,

Jacinta Edebeli

et al.

Environmental Science & Technology, Journal Year: 2024, Volume and Issue: 58(24), P. 10548 - 10557

Published: June 10, 2024

Concerns about civil aviation's air quality and environmental impacts have led to recent regulations on nonvolatile particulate matter (nvPM) mass number emissions. Although these do not mandate measuring particle size distribution (PSD), understanding PSDs is vital for assessing the of aviation nvPM. This study introduces a comprehensive data set detailing PSD characteristics 42 engines across 19 turbofan types, ranging from unregulated small business jets regulated large commercial aircraft. Emission tests were independently performed by using European Swiss reference nvPM sampling measurement systems with parallel measurements. The geometric mean diameter (GMD) at engine exit strongly correlated number-to-mass ratio (N/M) thrust, varying 7 52 nm. engine-exit standard deviation ranged 1.7 2.5 (mean 2.05). proposes empirical correlations predict GMD N/M emissions-certified engines. These predictions are expected be effective conventional rich-burn might extended novel combustor technologies if additional become available. findings support refinement emission models help in non-CO

Language: Английский

Citations

6

Revisiting Contrail Ice Formation: Impact of Primary Soot Particle Sizes and Contribution of Volatile Particles DOI Creative Commons
Fangqun Yu, B. Kärcher, B. E. Anderson

et al.

Environmental Science & Technology, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 26, 2024

Aircraft contrails, formed largely on soot particles in current flights, are important for aviation's non-CO

Language: Английский

Citations

5

Characterizing the Full Climate Impact of Individual Real-World Flights Using a Linear Temperature Response Model DOI Creative Commons

Mohamed Awde,

C. A. Stuart

Aerospace, Journal Year: 2025, Volume and Issue: 12(2), P. 121 - 121

Published: Feb. 5, 2025

Aviation’s non-CO2 effects account for approximately 66% of the sector’s Effective Radiative Forcing (ERF). However, emissions and their climate are particularly challenging to assess due number variables involved. This research provides a framework characterizing full impact individual real-world flights in terms global surface temperature change (ΔT) with aid validated CFM56-7B26/3 engine model spatially temporally resolved meteorological data. Different modelling methods were used evaluate NOx soot relative differences between them quantified, while contrail formation was implemented quantify distances travelled where persistent contrails formed. The ΔT evaluated over 77 years using Linear Temperature Response Model (LTR). results show that NOx-induced such as increase short-term ozone had highest on first year emissions, CO2 more detrimental long term. Unlike mid long-range examined, climb segment short-range flight significant than cruise segment. sensitivity studies different emission showed up 13% 14% soot.

Language: Английский

Citations

0

Global impacts of aviation on air quality evaluated at high resolution DOI Creative Commons
Sebastian D. Eastham,

Guillaume P. Chossière,

Raymond L. Speth

et al.

Atmospheric chemistry and physics, Journal Year: 2024, Volume and Issue: 24(4), P. 2687 - 2703

Published: Feb. 29, 2024

Abstract. Aviation emissions cause global changes in air quality which have been estimated to result ∼ 58 000 premature mortalities per year, but this number varies by an order of magnitude between studies. The causes uncertainty include differences the assessment ozone exposure impacts and how are simulated, as well possibility that low-resolution (∼ 400 km) models may overestimate compared finer-resolution 50 regional models. We use GEOS-Chem High-Performance chemistry-transport model at a km resolution, finer than recent assessments same scope, quantify aviation with single internally consistent approach. find 2015 resulted 21 200 (95 % confidence interval due health response uncertainty: 19 400–22 900) particulate matter 53 100 (36 000–69 exposure. Compared prior estimate 6800 ozone-related for 2006 our central is increased 5.6 times updated epidemiological data, includes effects during winter, 1.3 fuel burn. fine (50 resolution increases on both particulate-matter-related mortality further 20 coarse-resolution (400 simulation, intermediate (100 sufficient capture 98 impacts. This part role aviation-attributable ozone, long-lived enough mix through Northern Hemisphere 2.5 much impact PM2.5. work shows civil dominated hemisphere-scale tropospheric NOx rather local simulations provide similar results those 2 spatial scale. However, overall quantification sensitive assumptions regarding human exposure, additional research needed reduce physical atmosphere emissions.

Language: Английский

Citations

3

Private aviation is making a growing contribution to climate change DOI Creative Commons
Stefan Gößling, Andreas Humpe, João Leitão

et al.

Communications Earth & Environment, Journal Year: 2024, Volume and Issue: 5(1)

Published: Nov. 7, 2024

Abstract Commercial aviation’s contribution to climate change is growing, but the global role of private aviation not well quantified. Here we calculate sector’s CO 2 emissions, using flight tracker data from ADS-B Exchange platform for period 2019 2023. Flight times 25,993 aircraft and 18,655,789 individual flights in 2019-2023 are linked 72 models their average fuel consumption. We find that contributed at least 15.6 Mt direct emissions 2023, or about 3.6 t per flight. Almost half all (47.4%) shorter than 500 km. Private concentrated USA, where 68.7% registered. pattern analysis confirms extensive travel leisure purposes, cultural political events. Emissions increased by 46% between 2019-2023, with industry expectations continued strong growth. Regulation needed address growing impact.

Language: Английский

Citations

3

Effect of Aromaticity on Soot Formation: A Reactive Molecular Dynamics Study DOI
Deniz Kaya Eyice, Kevin Wan,

Julien Manin

et al.

AIAA SCITECH 2022 Forum, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 3, 2025

Language: Английский

Citations

0

Short-term emission reductions in leisure and business air travel: assessment of taxation, regulations, sustainable aviation fuels and personal intentions DOI Creative Commons
Marie Lisa Kogler, Annina Thaller, Alfred Posch

et al.

Journal of Sustainable Tourism, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 23

Published: March 6, 2025

Language: Английский

Citations

0