Design Calculations for a Halon 1301 Distribution Tube for an Aircraft Cabin Fire Extinguishing System.

Abstract

Theoretical calculations were performed to aid in the design of a perforated tube that will uniformly distribute Halon 1301 throughout the unventilated passenger cabin of a commercial air transport. Conditions for the calculations were those of a passenger cabin of a DC-7 fuselage, with a volume of 4000 cubic feet and a length of 72 feet, being used as a test article for evaluating the performance of such a system. Four separate calculations were made to determine the (1) size and number of orifices in the tube required for various Halon 1301 discharge rates; (2) pressure drop as a function of tube diameter and discharge rates; (3) time required to fill the tube with Halon 1301 for various tube diameters; and (4) cabin temperature and pressure after completion of Halon 1301 discharge. (Author Modified Abstract)

Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1973
Accession Number
AD0758350

Entities

People

  • Constantine P. Sarkos
  • Jack A. Jones

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Abstracts
  • Aircraft Cabins
  • Aircrafts
  • Airframes
  • Diameters
  • Extinguishing
  • Fuselages
  • Mechanical Structure
  • Passengers
  • Transport Aircraft
  • Transport Ships
  • Vehicles

Fields of Study

  • Engineering
  • Physics

Readers

  • Combustion Dynamics and Shock Wave Physics.
  • Fire Suppression Systems Design.
  • Hydraulic Engineering.