| Main Title |
Variability in aircraft turbine engine emission measurements / |
| Author |
Souza, Anthony F. ;
Reckner., Louis R.
|
| Other Authors |
|
| CORP Author |
Scott Research Labs., Inc., Plumsteadville, Pa.;Environmental Protection Agency, Ann Arbor, Mich. Emission Control Technology Div. |
| Publisher |
Environmental Protection Agency, Office of Air and Water Programs, Office of Mobile Source Air Pollution Control, Emission Control Technology Division ; For sale by the National Technical Information Service, |
| Year Published |
1974 |
| Report Number |
EPA-460/3-74-006; EPA-68-01-0443 |
| Stock Number |
PB-251 155 |
| OCLC Number |
04024683 |
| ISBN |
pbk. |
| Subjects |
Turbines ;
Airplanes--Motors
|
| Additional Subjects |
Exhaust emissions ;
Aircraft engines ;
Gas turbine engines ;
Air pollution ;
Gas sampling ;
Gas analysis ;
Aviation fuels ;
Fluid flow ;
Hydrocarbons ;
Carbon monoxide ;
Carbon dioxide ;
Nitrogen oxides ;
Calibrating ;
Smoke ;
Instrumentation ;
Measurement ;
Performance evaluation ;
Process charting ;
Flowmeters ;
Turbofan engines ;
Humidity ;
Temperature ;
Air pollution sampling ;
Aircraft exhaust ;
JT8D engines
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| EJBD ARCHIVE |
EPA-460-3-74-006 |
|
Headquarters Library/Washington,DC |
08/22/2017 |
| NTIS |
PB-251 155 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
94 pages in various pagings : illustrations ; 28 cm. |
| Abstract |
The major objective of the program was the determination of the causes of variability in the measurement of aircraft turbine engine emissions. A state-of-the-art analysis system was designed and built according to the specifications of the contract. The analysis system was evaluated for reliability in the handling and accuracy in the measurement of emissions. Using the special analysis system, the variability in gas turbine engine emission measurements caused by the exhaust sample collection technique was studied using a Pratt and Whitney JT8D gas turbine engine. An exhaust gas mixing technique and a detailed exhaust gas cross section mapping technique were used for the verification of average exhaust emission concentrations. The variability in exhaust emission measurements produced by the direction of approach to a power setting and the effect of small variations in thrust and fuel flow on the measurement of mass emission rates are determined. All emission data collected are examined for the effect of ambient temperature and humidity. |
| Notes |
Prepared under contract no. 68-01-0443. Issued Jan. 1974. |
