Accession Number:

AD0758350

Title:

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

Descriptive Note:

Final rept. Jun-Aug 72,

Corporate Author:

NATIONAL AVIATION FACILITIES EXPERIMENTAL CENTER ATLANTIC CITY N J

Personal Author(s):

Report Date:

1973-04-01

Pagination or Media Count:

32.0

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

Subject Categories:

  • Safety Engineering

Distribution Statement:

APPROVED FOR PUBLIC RELEASE