Cargo Fire Suppression by Depressurization

Burns, Michael; Hill, Richard; Hahn, Frank

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Cargo Fire Suppression by Depressurization

2017-11-01
By Burns, Michael ; Hill, Richard ; Hahn, Frank

File Language:

English

Details

Creators:

Burns, Michael ; Hill, Richard ; Hahn, Frank
Corporate Creators:

United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center
Subject/TRT Terms:

Air Cargo Aircraft Depressurization Fires Halon 1301 Lithium-ion Batteries Lithium-metal Batteries Lithium Batteries Pressurization Thermal Runaway
Publication/ Report Number:

DOT/FAA/TC-17/39
Resource Type:

Tech Report
Geographical Coverage:

United States
Corporate Publisher:

United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center
Abstract:

The effectiveness of aircraft depressurization (reduced pressure) on the burning behavior of stacked cargo, batteries, fuel, and materials was measured in a 381-cubic-foot (10.8-cubic-meter) pressure vessel, modified to conduct fire tests at a specific reduced pressure or programmed to vary the pressure to simulate aircraft depressurization to control a cargo fire and subsequent emergency descent to sea level. It was determined that depressurization did not prevent flashover during cargo fires consisting of stacked cargo boxes filled with shredded paper, although the burning behavior of individual fuels and materials was reduced at lower pressures. The discharge of Halon 1301 prevented flashover during the cargo fires and also significantly reduced the air temperature. In addition, thermal runaway of lithium batteries overheated under controlled fire-exposure conditions was not prevented over a range of pressures from sea level to an elevation of 26,000 ft (7.9 km).
Format:

PDF
Collection(s):

FAA Fire Safety FAA William J. Hughes Technical Center for Advanced Aerospace
Main Document Checksum:

urn:sha-512:b3c072903cdd92935dfa2f5478efd11e95a4567de95773fe5b7dd037342bf9cf0993cf2f28a245be56c697f95525a3bd39491b4104dbed7bf2523904a736f1e6
Download URL:

https://rosap.ntl.bts.gov/view/dot/57723/dot_57723_DS1.pdf
File Type:

[PDF - 805.06 KB ]

File Language:

English

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