Experimental Support of the Development of a Nitrogen Pressurization System for Extinguishment of Fires in Confined Spaces

Abstract

The successful application of a nitrogen pressurization system for the suppression of submarine fires depends upon developing an understanding of the scaling parameters for predicting the mixing of inert nitrogen with crew compartment air. The system utilizes nitrogen jets exhausting into the compartment which reduces the oxygen concentration and thereby extinguishes the fire. The gas dynamic properties of the inert gas jets exhausting into the compartment must be measured and correlated with gas composition measurements as a function of time so that scaling laws can be developed. Experimental facilities are being fabricated at the Naval Research Laboratory which will approximately simulate the size and geometry of a typical submarine compartment. Nozzles for pressurizing the compartment with inert gas will be suitably positioned to distribute the inflowing inert gas.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1983
Accession Number
ADA144267

Entities

People

  • P. E. Mackie
  • R. A. Cassanova

Organizations

  • Georgia Tech

Tags

Communities of Interest

  • Ground and Sea Platforms
  • Human Systems

DTIC Thesaurus Topics

  • Acquisition
  • Computer Programming
  • Computers
  • Contracts
  • Data Acquisition
  • Data Analysis
  • Experimental Data
  • Flow Visualization
  • Gas Dynamics
  • Hot Wire
  • Instrumentation
  • Kinetic Energy
  • Machine Languages
  • Military Research
  • Nitrogen
  • Pressurization
  • Scaling Laws

Fields of Study

  • Physics

Readers

  • Combustion and Flow Dynamics.
  • Fire Suppression Systems Design.

Technology Areas

  • Space
  • Space - Hall-Effect Thruster