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| Title: | The Combustibility of Materials in Oxygen-Helium and Oxygen-Nitrogen Atmospheres |
| Authors: | Huggett, C Von Elbe, G Haggerty, W |
| Keywords: | FIRE SAFETY COMBUSTION Hypobaric Chamber THERMAL PROPERTIES HAZARDS PAINTS WOOD IGNITION PAPER CELLULOSE ACETATES FOAM COTTON TEXTILES FIRE PREVENTION |
| Issue Date: | 1968 |
| Publisher: | ATLANTIC RESEARCH CORP ALEXANDRIA VA ADVANCED TECHNOLOGY DIV |
| Citation: | AD0489728 |
| Abstract: | The energy required for ignition of various materials and the rate at which flames spread over the surface after ignition were determined in oxygen- nitrogen and oxygen-helium mixtures in order to assess the fire hazards associated with proposed space cabin atmospheres. It was found that flames spread more rapidly in oxygen-helium mixtures than in comparable oxygen-nitrogen mixtures. The experimental data correlated well with the specific heats of the gas mixtures per mole of oxygen, indicating that the flame temperature is the dominant factor in determining flame spread rates. A theoretical model of flame spread was developed. Slightly more energy was required to ignite materials in oxygen-helium than in oxygen-nitrogen mixtures. However, the difference was small enough so as not to reduce significantly the fire hazards, especially since the flames spread more rapidly once the material was ignited. It was concluded that fire hazards are greater in oxygen-helium atmospheres than in oxygen-nitrogen atmospheres. |
| Description: | Citation Status: Active; Citation Classification: Unclassified; Title Classification: Unclassified; Report Classification: Unclassified; Identifier Classification: Unclassified; Abstract Classification: Unclassified; Distribution Limitation(s): 01 - APPROVED FOR PUBLIC RELEASE; Information provided by the Department of Defense and the Defense Technical Information Center (http://www.dtic.mil/) is considered public information and may be distributed or copied unless otherwise specified. Use of appropriate byline/photo/image credits is requested. |
| Gov't Doc # : | AD0489728 SAM-TR-66-85 AF 41(609)-2478 |
| URI: | http://archive.rubicon-foundation.org/4600 |
| Appears in Collections: | USAF Technical Reports (USAF-SAM and Brooks AFB)
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| SAM_66_85.pdf | | 3020Kb | Adobe PDF | View/Open |
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