Accession Number : AD0718755

Title :   Investigation of Jet Engine Combustion Chamber Burn-Through Fire.

Descriptive Note : Final rept. 1963-69,

Corporate Author : NATIONAL AVIATION FACILITIES EXPERIMENTAL CENTER ATLANTIC CITY N J

Personal Author(s) : Rust,Thomas , Jr

Report Date : MAR 1971

Pagination or Media Count : 59

Abstract : Work was directed toward establishment of standard test conditions for testing materials which are intended for use as fire barriers for protection against a jet engine combustion chamber burn-through type of failure. The development of such a failure was accomplished on a General Electric J-47 jet engine. The resulting flame was quite severe, penetrating the present standard firewall material in 2 seconds. Studies were made of the flame impingement characteristics, including impingement temperatures and pressures; and various potential firewall materials were tested for effectiveness as fire barriers for protection against such a failure. Most materials tested in this manner failed to provide adequate protection against such an engine failure. An investigation was conducted toward development of a means of simulating a combustion chamber burn-through failure with the ultimate goal of developing a suitable laboratory test flame for evaluating potential firewall materials. A combustion chamber simulator, which will produce a flame of similar severity to the flame produced in the J-47 engine, was developed. However, more effort is required to further develop this simulator so that exact simulation is possible. (Author)

Descriptors :   (*COMBUSTION CHAMBERS, *HEAT RESISTANT MATERIALS), (*TURBOJET ENGINES, COMBUSTION CHAMBERS), SIMULATORS, FIRES, TESTS, FAILURE(MECHANICS), FLAMES, PROTECTION

Subject Categories : Test Facilities, Equipment and Methods
      Jet and Gas Turbine Engines

Distribution Statement : APPROVED FOR PUBLIC RELEASE