Accession Number:

ADA094258

Title:

Interagency Nitric Oxide Measurement Investigation: AEDC Results for Phase 3 (Comparison of Optical and Probe Measurements of Nitric Oxide Concentration in Combustors)

Descriptive Note:

Final rept. Oct 1979-Jan 1980

Corporate Author:

ARNOLD ENGINEERING DEVELOPMENT CENTER ARNOLD AFB TN

Report Date:

1981-01-01

Pagination or Media Count:

62.0

Abstract:

The purpose of Phase III of this program was to measure NO concentration on three successively more complicated combustion systems using both optical and probe techniques. The results of all measurements, both probe and optical, were compared and analyzed. Generally, the NO concentrations determined by the optical method were no larger than 30 percent above the values obtained with probes for a methaneair flat-frame burner, a propaneair swirl combustor, and a liquid-fueled simulated jet engine combustor. Close examination of the data revealed that probe results were influenced by some chemical reaction. The probes were designed for subsonic, atmospheric pressure flows, and arguments are presented to show that the agreement found in these experiments need not be expected in near sonic or supersonic flow using the same probe designs.

Subject Categories:

  • Test Facilities, Equipment and Methods
  • Combustion and Ignition
  • Jet and Gas Turbine Engines

Distribution Statement:

APPROVED FOR PUBLIC RELEASE