Field Tests of a Laser Raman Measurement System for Aircraft Engine Exhaust Emissions

Abstract

Laser induced Raman and fluorescence measurements were made in the exhaust of a T53-L13A gas turbine engine with a new field portable instrument devised specifically for gas turbine exhaust emission measurements. The gas turbine exhaust was analyzed by conventional instruments for CO, CO2, NO, NOx, total hydrocarbons, smoke and temperature, and these data were used as a 'calibration' standard for the evaluation of the laser Raman instrument. The most severe problem area was laser induced hydrocarbon fluorescence when the exhaust contained large total hydrocarbon concentrations. The overall conclusion was that the laser Raman method shows a good potential for aircraft gas turbine emission analysis.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1974
Accession Number
ADA003648

Entities

People

  • Donald A. Leonard

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Air Force
  • Analyzers
  • Combustion
  • Data Analysis
  • Detection
  • Emission
  • Exhaust Gases
  • Gas Turbines
  • Generators
  • Laser Beams
  • Lasers
  • Measurement
  • Optics
  • Scattering
  • Spectroscopy
  • Test And Evaluation
  • Turbines

Fields of Study

  • Physics

Readers

  • Aerospace Test and Evaluation
  • Internal Combustion Engine (ICE) Technology.
  • Molecular Photonics/Laser Physics

Technology Areas

  • Directed Energy