Diode Laser Measurements of HF Concentrations Produced from Heptane/Air Pan Fires Extinguished by FE-36, FM-200, FE-36 Plus APP, and FM-200 Plus APP

Abstract

Tunable diode laser absorption spectroscopy (TDLAS) is used to measure the time evolution of hydrogen fluoride (HF) concentrations produced from a series of enclosed heptane/air pan fires extinguished by FE-36, FM-200, FE-35 plus ammonium polyphosphate (APP), or FM-200 plus APP. For the fires studied, the change in HF gas concentration with time is dependent upon the fire fighting chemical used to extinguish the fire. The presence of APP is observed to reduce HF concentrations in the fire enclosure. Visible attenuation spectroscopy is also used to measure the amount of light attenuation (obscuration) that occurs as a hand held fire extinguisher containing powder firefighting agent is released in the crew space of a M1-Abrams land combat vehicle.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1998
Accession Number
ADA379667

Entities

People

  • Andrzej W. Miziolek
  • C. Herud
  • Kevin L. McNesby
  • R. G. Daniel
  • R. R. Skaggs

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Advanced Electronics
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Amplifiers
  • Attenuation
  • Combat Vehicles
  • Detectors
  • Electronics
  • Fire Extinguishers
  • Fire Suppression
  • Fires
  • Laser Diodes
  • Lasers
  • Linear Regression Analysis
  • Measurement
  • Modulation
  • Regression Analysis
  • Spectroscopy
  • Test Facilities
  • Visibility

Readers

  • Fire Suppression Systems Design.
  • Materials Science and Engineering.

Technology Areas

  • Directed Energy
  • Directed Energy - Lasers
  • Space