Chemical Kinetics of Nitramine Propellants.

Abstract

This paper describes experimental measurements of the structure of a lean, premixed, laminar, flat flame of methane/nitrogen oxide/oxygen. The composition of stable species in the flame was measured by a cooled quartz sampling microprobe and gas chromatographic analysis. The composition of the intermediates CN, Ch, NH and NH2 was measured by laser-induced fluorescence spectroscopy using an excimer laser pumped tunable dye laser system. The flame has two luminous zones, one yellow and the other violet, separated by distinct, dark nonluminous zones. The concentration of NO2 has a maximum in the yellow zone while the concentrations of CN, NH, NH2 and NO are maximum in the violet region. The CH concentration profile has two peaks with one occuring in the yellow and one in the violet luminous zone. THe first peak is thought to be due to Ch4/02 reactions while the second peak is attributed to CH4/NO2 reactions. The oxidation of Ch4 is supported by the decomposition of NO2 to NO, although 02 is important in the initiation of the reaction process.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1986
Accession Number
ADA177258

Entities

People

  • Melvyn Branch

Organizations

  • University of Colorado Boulder

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Absorption
  • Air Force
  • Air Force Facilities
  • Chemical Kinetics
  • Chemical Reactions
  • Chemical Synthesis
  • Chemistry
  • Combustion
  • Combustion Products
  • Decomposition
  • Dye Lasers
  • Laser Induced Fluorescence
  • Lasers
  • Measurement
  • Mechanical Engineering
  • Nitrogen Oxides
  • Spectroscopy

Readers

  • Combustion science or combustion engineering.
  • Molecular Photonics/Laser Physics

Technology Areas

  • Directed Energy
  • Directed Energy - Lasers