Sentences with phrase «aircraft engine emissions»

It is therefore highly relevant to consider the current and possible future effects of aircraft engine emissions on the atmosphere.

Aircraft engine emissions are roughly composed of about 70 percent CO2, a little less than 30 percent H2O, and less than 1 percent each of NOx, CO, SOx, VOC, particulates, and other trace components.

Not exact matches

As part of a close collaboration between Empa, SR Technics and FOCA experts have spent years developing a standard test setup and method that can be used to measure fine particulate emissions from aircraft engines.

Since the 1980s, large aircraft engines have been required to meet emission limits that have been gradually tightened over time.

The Committee on Aviation Environmental Protection of the International Civil Aviation Organization (ICAO) recently approved a preliminary standard governing the emission of particulates by aircraft engines.

Emissions were calculated from the information in the ICAO Engine Exhaust Emissions Data Bank (ICAO, 1995), through the use of Boeing «Method 2» procedures (Baughcum et al., 1996b, Appendix D), which allow extrapolation of sea - level data in the ICAO data bank to the operating altitudes and temperatures encountered throughout the aircraft flight profile.

Following a request from the International Civil Aviation Organization (ICAO) to assess the consequences of greenhouse gas emissions from aircraft engines, the IPCC at its Twelfth Session (Mexico City.

-- In establishing standards applicable to emissions of greenhouse gases pursuant to this section and sections 202 (a), 213 (a)(4) and (5), and 231 (a), the Administrator may establish provisions for averaging, banking, and trading of greenhouse gas emissions credits within or across classes or categories of motor vehicles and motor vehicle engines, nonroad vehicles and engines (including marine vessels), and aircraft and aircraft engines, to the extent the Administrator determines appropriate and considering the factors appropriate in setting standards under those sections.

This standard applies whenever EPA wishes to regulate emissions from vehicles, non-road engines, aircraft, power plants, industrial facilities, etc..

In addition, the Endangerment Rule authorizes or obligates EPA to establish: (1) greenhouse gas emission standards for heavy trucks, marine vessels, aircraft, locomotives, and other non-road vehicles and engines; (2) greenhouse gas performance standards for potentially dozens of industrial source categories; and, (3) national ambient air quality standards (NAAQS) for greenhouse gases set below current atmospheric concentrations.

Sampling tubing and instrumentation control cables laid out on the pavement beside NASA's DC - 8 flying laboratory in between synthetic fuels emission and engine performance tests at the Dryden Aircraft Operations Facility in Palmdale, Calif..

The Code notes that shutting down an engine during taxi - in operations can deliver reductions of 20 to 40 per cent of the ground level fuel burn and CO2 emissions, and 10 to 30 per cent of ground emitted oxides of nitrogen (NOx) emissions, depending on aircraft type and operator technique.

Landing / Take - Off (LTO) Cycle A reference cycle for the calculation and reporting of emissions, composed of four power settings and related operating times for subsonic aircraft engines [Take - Off - 100 % power, 0.7 minutes; Climb - 85 %, 2.2 minutes; Approach - 30 %, 4.0 minutes; Taxi / Ground Idle - 7 %, 26.0 minutes].