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Determination of survivable fires
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Urban, D. L. Abbott, A. A. Easton, J. W. Ruff, G. A. Niehaus, J. E. Takahashi, F. Dietrich, D. L. Graf, J. C. |
| Copyright Year | 2012 |
| Description | At NASA, there exists no standardized design or testing protocol for spacecraft fire suppression systems (either handheld or total flooding designs). An extinguisher's efficacy in safely suppressing any reasonable or conceivable fire is the primary benchmark. That concept, however, leads to the question of what a reasonable or conceivable fire is. While there exists the temptation to over-size' the fire extinguisher, weight and volume considerations on spacecraft will always (justifiably) push for the minimum size extinguisher required. This paper attempts to address the question of extinguisher size by examining how large a fire a crew member could successfully survive and extinguish in the confines of a spacecraft. The hazards to the crew and equipment during an accidental fire include excessive pressure rise resulting in a catastrophic rupture of the vehicle skin, excessive temperatures that burn or incapacitate the crew (due to hyperthermia), carbon dioxide build-up or other accumulation of other combustion products (e.g. carbon monoxide). Estimates of these quantities are determined as a function of fire size and mass of material burned. This then becomes the basis for determining the maximum size of a target fire for future fire extinguisher testing. |
| File Size | 713843 |
| Page Count | 11 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20130010973 |
| Archival Resource Key | ark:/13960/t4nk8bw4d |
| Language | English |
| Publisher Date | 2012-07-15 |
| Access Restriction | Open |
| Subject Keyword | Space Transportation And Safety Fire Extinguishers Fire Fighting Fires Risk Assessment Fire Damage Carbon Dioxide Flammability Combustion Products Combustion Microgravity Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
