Accession Number:

ADA355053

Title:

Engine Gaseous, Aerosol Precursor and Particulate at Simulated Flight Altitude Conditions

Descriptive Note:

Technical memo

Corporate Author:

NATIONAL AERONAUTICS AND SPACE ADMINISTRATION CLEVELAND OH LEWIS RESEARCH CENTER

Personal Author(s):

Report Date:

1998-10-01

Pagination or Media Count:

176.0

Abstract:

The overall objective of the NASA Atmospheric Effects of Aviation Project AEAP is to develop scientific bases for assessing atmospheric impacts of the exhaust emissions by both current and future fleets of subsonic and supersonic aircraft. Among the six primary elements of the AEAP is Emissions Characterization. The objective of the Emission Characterization effort is to determine the exhaust emission constituents and concentrations at the engine exit plane. The specific objective of this engine test is to obtain a database of gaseous and particulate emissions as a function of fuel sulfur and engine operating conditions. The database of the particulate emission properties is to be used as a comparative baseline with subsequent flight measurement. The engine used in this test was a Pratt Whitney F100-200E turbofan engine. Aviation fuel Jet A with a range of fuel sulfur was used. Low and high sulfur values are limited by commercially available fuels and by fuel specification limits of 0.3 by weight. Test matrix was set by parametrically varying the combustor inlet temperature T3 between idle and maximum power setting at simulated SLS and up to five other altitudes for each fuel. Four diagnostic systems, extractive and non-intrusive, were assembled for the gaseous and particulate emissions characterization measurements study. NASA extractive system includes smoke meter and analyzers for measurement of CO, CO2, NO, NOx, O2, total unburnt hydrocarbons THC, and SO2. Particulate emissions were characterized by University of Missouri-Rolla Mobile Aerosol Sampling System.

Subject Categories:

  • Aircraft
  • Physical Chemistry
  • Combustion and Ignition
  • Jet and Gas Turbine Engines

Distribution Statement:

APPROVED FOR PUBLIC RELEASE