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Records 196 to 200 of 733
| Title: |
Onboard Cabin Water Spray System Under Various Discharge Configurations |
| Author: |
Timothy Marker |
| Abstract: |
Six full-scale fire tests were conducted in a modified DC-10 fuselage to investigate the effects of spraying water at different cabin locations or �pre-wetting� the cabin, while keeping the fire conditions constant. The tests were part of a 28 test series using a wide body fuselage to study the performance of an onboard cabin water spray system. The spray system utilizes low flow rate nozzles, which produce a fine mist consisting of a range of water droplet diameters. The system being tested was a �breadboard� design for the purpose of demonstrating concept feasibility only. Two tests involved spraying water in different sections of the cabin and overhead. Two other tests investigated the effects of spraying varying quantities of water before the fire was ignited to pre-wet the interior. For comparison, one test used spray throughout the cabin, while the last test performed was without water in order to establish a �baseline�. Temperature, smoke, heat flux and gas concentrations were monitored at various locations throughout the fuselage. |
| Report: |
DOT/FAA/CT-TN91/42 |
Pages: |
28 |
Size: |
1.1 MB |
| Title: |
A Consideration OF Some Simple Models For Assessing Heat Transfer To Objects Engulfed In Pool Fires |
| Author: |
C.J. Fry |
| Abstract: |
Two simple models for assessing the heat flux into objects engulfed in pool fires are considered. The two models differ in that the first models radiation from the fire as coming from a solid black surface surrounding the object while the second represents the flames as a uniform medium of finite thickness. The readings from thermocouples measuring flame temperature is considered using the two models and it is shown that the measured temperature may differ significantly from the true flame temperature. A simple design of instrument for measuring the effective black body radiation temperature is discusses. |
| Report: |
FSR-0077 |
Pages: |
16 |
Size: |
525 KB |
| Title: |
Effectiveness of Water Spray within the Cabin Overhead Area |
| Author: |
Timothy Marker |
| Abstract: |
Four full-scale postcrash fire tests were conducted in a modified DC-10 fuselage to investigate the benefits, if any, of spraying water in the area above the cabin ceiling, known as the overhead. The tests were part of a 28-test of series using a wide fuselage to study the performance of an on-board cabin water spray system. The spray system uses low flow rate nozzles, which produce a fine mist consisting of a range of water droplet diameters. The system being tested was a �Breadboard� design for the purpose of demonstrating concept feasibility only. In order to do better quantify the overhead spray performance, two areas of the cabin ceiling were removed: the area directly adjacent to the fire door, and an area in the forward section of the fuselage near the gas sampling stations. Temperature, smoke, heat and gas concentrations were monitored at various locations throughout the fuselage. Test results showed little or no improvement in cabin conditions due to the overhead spray. |
| Report: |
DOT/FAA/CT-TN91/29 |
Pages: |
27 |
Size: |
1.4 MB |
| Title: |
Aircraft Command in Emergency Situations (ACES) Phase I: Concept Development |
| Author: |
Thomas L. Reynolds, Gregory E. Grimstad, Charles D. Anderson |
| Abstract: |
Tis contract study defined two conceptual approaches for an advanced smoke/fire system for commercial passenger jet aircraft that would provide for accurate, timely guidance to the flight crew for their use in responding to possible and/or actual inflight smoke and fire events within the pressurized fuselage. The motivation for this work has been the computerization of the modern commercial jet aircraft flight deck, the evolution toward the two-men crew, and documented times taken to locate and implement the appropriate emergency procedure. The primary objective of the ACES system concepts are to provide the capability to reduce the time required for the flight deck crew to make a decision to land the aircraft. |
| Report: |
DOT/FAA/CT-90/21 |
Pages: |
133 |
Size: |
26.3MB |
| Title: |
Improving Passenger Survivability In Aircraft Fires: A Review |
| Author: |
Civil Aviation Authority |
| Abstract: |
Full-scale fire test programmers under controlled conditions\s in both the UK and the US have confirmed the effectiveness of low volume cabin water spray systems in providing considerably enhanced protection to passengers in the event of fire on the ground.
The Authority considers that serious consideration should now be given to introducing regulations requiring the installation of such systems in large transport aircraft. To this end it is initiating broad discussions with industry to review the results of the tests and studies carried out so far. Work on the preparation of functions and performance specifications is commencing to provide standards against which industry can seek to optimize their systems and seek approval. |
| Report: |
FSR-0073 |
Pages: |
35 |
Size: |
1.74 MB |
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