Search Results
Records 581 to 585 of 733
First
Previous
| Title: | Surface Flammability Of Material Using A Radiant Heat Energy Source | ||||
|---|---|---|---|---|---|
| Author: | American National Standards Institute | ||||
| Abstract: | This method, to be used for research and development purposes, covers the measurement of surface flammability of materials. It is not intended for use as a basis of ratings for building code purposes | ||||
| Report: | FSR-0111 | Pages: | 11 | Size: | 721 KB |
| Title: | A Protective Passenger Smoke Hood | ||||
|---|---|---|---|---|---|
| Author: | Ernest B. McFadden | ||||
| Abstract: | Several recent jet transport accidents have focused the attention of the aviation industry upon smoke and toxic gases as causal factors of passenger incapacitation ,and failure evacuate aircraft before fire and heat render the environment: uninhabitable. If it were possible to provide passengers with a short duration supply of breathing air sufficient to maintain the passengers' mobility and allow completion of aircraft evacuation, survival would be enhanced. Simple, light-weight, bag-shaped hoods incorporating a neck seal were fabricated of a thin pliable, high-temperature, transparent, polyimide plastic film. Polyimide film has no melting point but reportedly chars at 1500�F. In a more advanced design, thin trans-parent metallic coatings were applied to the polyimide film in order to reflect up to 90% of the radiant heat. Upon exposure to a specific infra-red heat flux, facial skin temperatures of 114-115�F were recorded on twelve human subjects wearing the non-metalized hood. Under identical conditions, skin temperatures of the same subjects \vearing the metalized hood did not exceed 99�F. Capability of the hood to provide short term and extended protection from smoke and flame inhalation in a fire environment is discussed. | ||||
| Report: | FSR-0093 | Pages: | 9 | Size: | 2.82 MB |
| Title: | A Study of the Fire Resistance of Aluminum Alloy Tubing and Fittings | ||||
|---|---|---|---|---|---|
| Author: | Paul N. Boris | ||||
| Abstract: | A series of fire tests was conducted on aircraft aluminum alloy 5052-0 (formerly 52S) tubing and a standard AN aluminum futtings. Tests consisted of subjecting specimens to a 2000F flame from a standard 2-gph kerosene torch. The degree of fire resistance of tubing and coupling test specimens was determined for conditions of sero-flow and intermediate-flow rates up to a maxinum rate in gallons per minute of five times he square of the inside diameter in inches. Oil and aviation at ambient temperatures and oil preheated to 200F were used as the circulating fluids during testing. The investigation covered tube sizes from 1/4 to2 in. in diameter. Aluminum tubing containing no fluid exhibited very little fire resistance; whereas, tubing containing fluid but without flow showed an increase in fire resistance with eventual failure. Under this latter test condition, the use of fire-retardant coatings on tube samples did not result in any significant increase in fire resistance. Test results revealed that aircraft aluminum tubing retained a high degree of fire resistance as long as fluid continued to circulate through the tubing to conduct heat away from the wall surface. Couplings of 3/4-in. size and larger leaked at all flow rates tested. Coiplings under 3/4-in. size exhibited no signs of leakage. Subsequent inspection of all couplings after testing revealed no signs of damage or deformation. |
||||
| Report: | FAA-DS-67-4 | Pages: | 36 | Size: | 2.41 MB |
| Title: | Theroretical and Experimental Investigation of th Compressible Free Mixing of Two Dissimilar Gases | ||||
|---|---|---|---|---|---|
| Author: | Coleman P. Donaldson, K. Evan Gray | ||||
| Abstract: | An extension and improvement of Warren�s momentum integral method for predicting the turbulent mixing and decay of axially symmetric, compressible, free jets o the case of the mixing of dissimilar gases is discussed. Two ideal gases having different molecular weights and specific heats are treated with the assumption that the local turbulent mixing rate at each axial location depends upon a suitably chosen local reference Mach number. This method of analysis is then compared with the results of a series of jet-mixing experiments carried out o helium, methane, nitrogen, carbon dioxide and freon jets mixing in air. Mach numbers ranging from 0.75 to 3.30 were investigated. The character and mixing rates of both properly and improperly expanded supersonic jets were studies. It is concluded from a comparison of these data with the theoretical method presented that a general relationship exists, at each axial position I the jet, between a local mixing rate parameter and the local Mach number. This general relationship is independent, within the accuracy of these experiments, of the physical properties or the thermodynamic state of the mixing gases. | ||||
| Report: | FSR-0057 | Pages: | 9 | Size: | 954 KB |
| Title: | ALPA Cleveland Fire Test Results | ||||
|---|---|---|---|---|---|
| Author: | Jim Brenneman | ||||
| Abstract: | The Cleveland tests were conducted to determine if survival time in an aircraft cabin could be extended under post-crash fire conditions by using high expansion foam to completely fill the occupied portions of the cabin interior. It was hoped that the high expansion foam would hold the temperature within survivable limits while controlling smoke, toxic gases, and other products of combustion. Thus, we would provide cool, breathable atmosphere for a prolonged period of time for the occupants, pending ultimate evacuation or rescue. As a secondary objective, we hoped to determine the exact nature of the smoke, gases, etc., that may be present in a post-crash fire in which typical modern aircraft cabin materials such as vinyl, polypropylene, polyvinyl chloride, etc, and plastics are installed and are involved in the fire. To these ends, the tests were only to prove the concept, since the foam equipment used was �off the shelf� hardware, and not suitable for use as an installed system. It would also not be suitable for use in its present form by ground fire fighting, since it is too slow and cumbersome to put into operation. |
||||
| Report: | FSR-0186 | Pages: | 10 | Size: | 675 KB |
Search Again
Choose the type of search you'd like to perform:
(Use AND or OR to refine your search)