Loading...
Please wait, while we are loading the content...
Similar Documents
Unmanned vehicle material flammability test
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | T’ien, James S. Cowlard, Adam Torero, Jose L. Toth Sr., Balazs Ruff, Gary A. Minster, Olivier Eigenbrod, Christian Fernandez-Pello Sr., A. Carlos Fujita, Osamu Smirnov, Nickolay Legros, Guillaume Urban, David Jomaas, Grande Rouvreau, Sebastian |
| Copyright Year | 2013 |
| Description | Microgravity combustion phenomena have been an active area of research for the past 3 decades however, there have been very few experiments directly studying spacecraft fire safety under low-gravity conditions. Furthermore, none of these experiments have studied sample and environment sizes typical of those expected in a spacecraft fire. All previous experiments have been limited to samples of the order of 10 cm in length and width or smaller. Terrestrial fire safety standards for all other habitable volumes on earth, e.g. mines, buildings, airplanes, ships, etc., are based upon testing conducted with full-scale fires. Given the large differences between fire behavior in normal and reduced gravity, this lack of an experimental data base at relevant length scales forces spacecraft designers to base their designs using 1-g understanding. To address this question a large scale spacecraft fire experiment has been proposed by an international team of investigators. This poster presents the objectives, status and concept of this collaborative international project to examine spacecraft material flammability at realistic scales. The concept behind this project is to utilize an unmanned spacecraft such as Orbital Cygnus vehicle after it has completed its delivery of cargo to the ISS and it has begun its return journey to earth. This experiment will consist of a flame spread test involving a meter scale sample ignited in the pressurized volume of the spacecraft and allowed to burn to completion while measurements are made. A computer modeling effort will complement the experimental effort. Although the experiment will need to meet rigorous safety requirements to ensure the carrier vehicle does not sustain damage, the absence of a crew removes the need for strict containment of combustion products. This will facilitate the examination of fire behavior on a scale that is relevant to spacecraft fire safety and will provide unique data for fire model validation. This will be the first opportunity to examine microgravity flame behavior at scales approximating a spacecraft fire. |
| File Size | 1489975 |
| Page Count | 1 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20140006584 |
| Archival Resource Key | ark:/13960/t6159kp6s |
| Language | English |
| Publisher Date | 2013-05-17 |
| Access Restriction | Open |
| Subject Keyword | Combustion Fire Safety Life Support Soot Ignition Unmanned Spacecraft Combustion Products Foams Combustion Physics Fire Prevention International Space Station Composite Materials Aerospace Vehicles Fires Flammability Thermal Conductivity Aerospace Safety Microgravity Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Presentation |
