Shipboard Smoke Control Tests Using Forced Counterflow Air Supply

Abstract

A full-scale experimental investigation of smoke movement in horizontal passages and vertical trunks has been conducted to correlate minimum opposed air flows and buoyancy of the smoke. A series of experiments were carried out on the ex-USS SHADWELL. The correlation between minimum opposed air flow velocity and smoke propagation is presented in terms of Froude numbers. The experimental results of the present work shows that the relatively modest air velocities are able to limit the movement of smoke in either the horizontal passageway or the vertical trunk. On the basis of present results, a smoke exhaust system can be designed with large openings to provide a means of restricting the movement of smoke from fires. Recommendations are made for further research on smoke exhaust system testing to establish a correlation between fire size, extent of upstream smoke migration and air flow velocity.

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Document Details

Document Type
Technical Report
Publication Date
Sep 16, 1994
Accession Number
ADA285409

Entities

People

  • C. L. Beyler
  • E. W. Forssell
  • Frederic W. Williams
  • P. J. Dinenno
  • P. Lain

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies
  • Ground and Sea Platforms
  • Sensors

DTIC Thesaurus Topics

  • Air Flow
  • Air Supplies
  • Blowers
  • Buoyancy
  • Control Systems
  • Exhaust Systems
  • Flow
  • Flow Rate
  • Froude Number
  • Hot Gases
  • Instrumentation
  • Measurement
  • Migration
  • Plastic Explosives
  • Pressure Regulators
  • Test Facilities
  • Wind Tunnels

Readers

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