aircraft emissions Articles
-
A method to extend flamelet manifolds for prediction of NOx and long time scale species with tabulated chemistry
Numerical simulation is currently used to help design low NOx devices for aircraft engines. In order to improve the prediction of pollutant species, combustion models based on tabulated chemistry have been commonly used in recent years. However, the short time scales of usual flamelet manifolds can lead to errors concerning the NO prediction in post flame area, as shown in this paper. Thus, a new ...
-
The effect of aircraft engine exhaust gases on the environment
The sources of air pollution are classified as point, line and surface sources. Motor vehicle pollution is modelled as a line source. Hitherto, studies of air pollution have emphasised surface pollution caused by fossil fuel burning for the purposes of obtaining energy and heating, and motor vehicle pollution studies are usually concentrated on land vehicles. In this study, the effect of aircraft ...
-
Entropy approach for mitigation of environmental aviation impact and airport capacity increase
The implementation of the operational procedures to reduce aircraft noise and engine emission in the airport vicinity was under consideration in the paper. Emphasis was put on optimal aircraft operational procedures for noise and emission reduction taking into account interrelations of aircraft noise and engine emission. The task of minimising of aircraft noise impact and engine emission ...
-
NO x emission model of turbofan engine
During last decade a lot of investigations also focused on the evaluation of aircraft engine impact on local and regional air quality in the vicinity of the airport. The emission inventory of aircraft engines are usually calculated on the basis of certificated emission indexes, which is provided by the engine manufacturer and reported in the database of ICAO. The certificated emission indices ...
-
Calculation of HC, CO and NO
xfrom civil aviation in Turkey in 2012To meet the growing demand for air transport, airline companies doubled their aircraft numbers in Turkey, where civil aviation activities have shown great development in recent years. This increase in aircraft numbers resulted in an emission problem. Considering its impact on regional air quality, the growing emission amounts are at a non–negligible level. We especially take the busiest airports ...
-
Calculation of domestic flight-caused global warming potential from aircraft emissions in Turkish airports
In this study, global warming potential (GWP) is calculated for aircrafts used in Turkish airports. The basic idea of this study is to investigate both emissions and their GWP values. This study is conducted in three steps, namely: 1) finding busiest airports in Turkey; 2) specifying the most used aircraft types and its engines; and 3) calculation of domestic flight-caused GWP value for both the ...
-
Coasian economics and the management of international aviation emissions
The recent decision by the EU Parliament supporting an emissions tax and subsequent carbon trading scheme for European airlines provides the structural foundation for an exploration of the role of Coasian economics in emissions abatements in the international aviation industry. The paper begins by outlining Pigouvian taxation in aviation and considers, from a business context, the potential ...
-
The sustainable development of Heathrow Airport: model inter-comparison study
Air quality modelling near airports has received attention due to the impact of emissions from aircrafts near ground level. This work is part of the model inter-comparison study undertaken for the Department of Transport in connection with air quality near Heathrow Airport. Results formed part of a submission to the UK government in July 2006. The Emissions and Dispersion Modelling System (EDMS) ...
-
Innovation towards tourism sustainability: climate change and aviation
A wide range of publications has shown that the tourism sector is increasingly environmentally unsustainable. This is mainly caused by the contribution of aviation to a large and growing amount of Greenhouse Gas (GHG) emissions by tourism. In the light of this, we present an overview of developments in the aviation sector and discuss current options for innovation towards sustainability in three ...
-
The impact of an airport on regional air quality at Munich, Germany
In May 1992, the new airport in Munich, Germany, became fully operational. In 1991, two research programmes within the Bavarian Climate Research Programme (BayFORKLIM) in Germany/Bavaria were established to measure, calculate and model the assumed change of the air quality in the vicinity of the new airport. By analysing the synoptic and local weather situation, measured and modelled air ...
-
Developments in ADMS-Airport to take account of near field dispersion and applications to Heathrow Airport
ADMS-Airport is based on the ADMS-Urban system for modelling urban air quality. In the near field it employs a quasi-Gaussian dispersion model and this is nested within a trajectory model. Aircraft sources are treated explicitly as accelerating jets. Application of the model to air quality calculations was conducted for the Model Inter-Comparison (MIC) Study of Project for the Sustainable ...
-
Comparison of measured and modelled NO2 values at Zurich airport, sensitivity of aircraft NOx emissions inventory and NO2 dispersion parameters
This paper presents a comparison of modelled and measured annual mean NO2 concentrations around Zurich airport. Modelled concentrations were derived from the LASAT Lagrangian model for the airport and from a Gaussian plume model for the Zurich canton. The measured annual mean NO2 concentrations were monitored at stations within the airport. The modelled airport NO2 concentrations fell below 1 ...
-
Investigation of environmental impact caused by aircraft engines
The environmental effects of exhaust gas emissions from different types of spark ignitions (SIs) - naturally aspirated and air–cooled from piston–prop aircraft engines - at the landing and take–off (LTO) phase of flight–based operations are investigated in this study. The minimum natural resources effect was determined to be 1.37 MJ surplus energy/LTO in 320 in three cylinder displacement and ...
-
Characterization of particulate matter and gaseous emissions of a C-130H aircraft
The gaseous and nonvolatile particulate matter (PM) emissions of two T56-A-15 turboprop engines of a C-130H aircraft stationed at the 123rd Airlift Wing in the Kentucky Air National Guard were characterized. The emissions campaign supports the Strategic Environmental Research and Development Program (SERDP) project WP-1401 to determine emissions factors from military aircraft. The purpose of ...
-
Gas standards relevant to stack emission measurements at the National Physical Laboratory
INTRODUCTION NPL is one of a number of laboratories which forms part of the Governments policy to ensure that UK measurements of all kinds are accurately made through the DTI’s National Measurement System. NPL is the focus of the United Kingdom’s physical measurements and its remit includes aspects of environmental measurements, which form an important component of the UK’s ...
-
An application of backscatter Lidar to model the odour nuisance arising from aircraft tyre smoke
A Rapid-Scanning Backscatter Lidar (RASCAL) has been deployed at Heathrow and Manchester Airports to collect backscatter data from particulate emissions in the wakes of several hundred flights. The principal aim of these measurements was to characterise the dispersion of the engine exhausts, but it was found that tyre smoke was also visible, giving a signal substantially greater than that from ...
-
Time to stop subsidising the most polluting form of transport
Late last month, the World Trade Organisation told the USA and the EU what it thinks of US subsidies to Boeing (story, page 2). Last June, the WTO delivered a similar verdict on EU subsidies to Airbus. Of course both sides claim that the other’s subsidies are worse – we can’t yet check these claims because the WTO report won’t be published for another few weeks, but it is ...
-
5 Questions to Ask About EPA’s Forthcoming Clean Power Plan
This article was co-authored by Kristin Meek and was republished with permission from the World Resources Institute, a global research organization which seeks to create equity and prosperity through sustainable natural resource management. Last June, the Environmental Protection Agency (EPA) proposed the first-ever standards to limit carbon dioxide (CO2) pollution from existing power plants, ...
-
Wallström Warms to Role for Aviation in EU Emissions Trading
EU Environment Commissioner Margot Wallström has expressed cautious support for allowing European flights into the EU emissions trading scheme from 2008. Airport operator BAA has developed proposals to allow airlines to offset their rising emissions by buying EU allowances - and the UK Government looks likely to back the idea in its forthcoming aviation White Paper. Aviation's soaring ...
-
Airport Air Quality Monitoring for Smart Airports
Global air travel has increased tremendously in the last decade with easier domestic and intercontinental travel. People are more inclined towards the aeroplane for long-distance travel as it saves time. An increase in Low-Cost Carriers (LCCs) makes air travel cheaper and more frequent. An increase in air travel tends to increase air pollution due to higher fuel consumption and exhaust emissions. ...
Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you