- Author
- Eggleston, L. A.
- Title
- Evaluation of Fire Extinguishing Systems for Use in Oxygen Rich Atmospheres. Final Report.
- Coporate
- Southwest Research Inst., San Antonio, TX
- Sponsor
- Aerospace Medical Div., Brooks AFB, TX
- Report
- Final Report, May 18, 1967, 40 p.
- Distribution
- Available from National Technical Information Service
- Contract
- SWRI-PROJECT-03-2094
- Keywords
- fire extinguishers | oxygen enriched atmospheres | water sprays | hyperbaric atmospheres | fire extinguishers | fire alarm systems | test methods | halons | toxicity | ultraviolet detectors | spray nozzles
- Identifiers
- Freon 1301
- Abstract
- Freon 1301 (bromotrifluoromethane) and water spray systems were evaluated for use in extinguishing fires in oxygen-rich atmospheres. In addition to somewhat simpler installation and no external piping requirements, Freon systems have a system discharge pressure of 300 psi which allows an adequate differential above chember pressure. While noticeably slower than Freon systems, water spray systems extinguish fire within acceptable limits, are easy to operate either automatically or manually inside or outside the chamber, and can be operated repeatedly without recharge. For use in hyperbaric systems, water spray nozzles must be about 50 psi above chember pressure to produce the desired atomization and droplet velocities.