Investigation of Possible Decomposition of Alternative Fire-Extinguishing Agents Discharged Through a Vehicle Personnel Heater.

Abstract

Fourier transform infrared (FT-IR) spectroscopy was used to monitor the possible thermal decomposition of alternative fire-extinguishing agents discharged through a vehicle personnel heater. The agent was introduced into the heater air induction pen and flowed across the heat exchanger manifold. Gas samples were removed from the hot air output duct extension of the heater via stainless steel tubing and flowed through a 1Om path-length multipass optical gas cell placed in the sample beam of an PT-IR spectrometer. Five fire-extinguishing agents, CF3Br (trade name, Halon 1301), C3F7H (FM-200), C3F6H2 (FE-36), C2F5H (FE-25), and CF3H (FE-13), were tested for two manifold temperatures of 380 and 480-510 deg C. No agent decomposition or combustion gas products could be detected for any of the agents tested under these temperature conditions. The agent decomposition products of interest were HF, HBr, CO, CF3H, C2H2, CH4, C2H4, and CF2O.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1996
Accession Number
ADA316811

Entities

People

  • Craig Herud
  • Kevin L. McNesby
  • Paul Marsh
  • Steven H. Modiano
  • William Bolt

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Advanced Electronics
  • Biomedical
  • Weapons Technologies

DTIC Thesaurus Topics

  • Cells
  • Chemical Engineering
  • Chemistry
  • Combustion
  • Combustion Products
  • Decomposition
  • Detection
  • Engineering
  • Extinguishing
  • Fire Extinguishing Agents
  • Fires
  • Heat Exchangers
  • Jet Propulsion
  • Mechanical Engineering
  • Military Research
  • Plastic Explosives
  • Spectra

Readers

  • Combustion and Flow Dynamics.
  • Environmental Engineering.
  • Organic Chemistry