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Records 381 to 385 of 717
| Title: |
Development of Fire Protective Overarment for Use By Air Carrier Flight Attendants |
| Author: |
John F. Rayfield |
| Abstract: |
The objective of this effort was to develop a garment to provide protection to flight attendants in proximity to cabin fires. Based on laboratory flame and heat flux tests, garment materials were chosen. A prototype garment was fabricated, including a breathing system and hood. The garment was tested for donning and mobility in an aircraft cabin, and was subjected to a simulated cabin fire exposure that approximated the contract design conditions |
| Report: |
FAA-RD-77-18 |
Pages: |
59 |
Size: |
6.03 MB |
| Title: |
Aircraft Cargo Compartment Fire Test Simulation Program |
| Author: |
R.E. Blumke |
| Abstract: |
A cargo compartment facility was utilized for two cargo fire tests. The objective of the 2nd test was to assess fire containment and fire extinguishment in the cargo by reducing the ventilation through the cargo compartment. Parameters which were measured included ignition time, burnthrough time and physical damage to the cargo liner, composition of selected combustible gages, temperature time histories, heat flux and detector response. The ignitor load was made of a typical cargo consisting of filled cardboard cartons occupying 50% of the compartment volume. Test data and test results are discussed for both tests. |
| Report: |
FSS-US-8360 |
Pages: |
83 |
Size: |
45.4 MB |
| Title: |
Rheology Study of Antimist Fuels |
| Author: |
R.J. Mannheimer |
| Abstract: |
Two different rheological phenomena have been studied that may relate to the mechanisms by which high molecular weight polymers inhibit misting. The first of these is a shear thickening or antihixotripic in which the liquid fuel develops a shear induced structure above a critical shear stress. The second phenomena involves the sudden increase in resistance to flow in porous media that certain polymer solutions exhibit when the flow rate is above a critical value. This effect is quite different form the first in that the former can be induced by shear while the latter requires elongation.
While it is difficult to interpret these phenomena directly in terms of shear and elongational viscosities, it appears possible that the critical shear stress and the critical flow rate may be useful criteria for characterizing the condition of the antimist additive.
The theoretical significance of the critical flow rate in porous media has been discussed in terms of a fluid relaxation time which in turn may be related to the polymer molecular weight. A relationship between the critical flow rate and the intrinsic viscosity is presented that explains why former is more sensitive to polymer degradation. |
| Report: |
FAA-RD-77-10 |
Pages: |
7 |
Size: |
399 KB |
| Title: |
Thermochemcial Characterization Of Some Thermoplastic Materials |
| Author: |
Carlos J. Hilado |
| Abstract: |
ABSTRACT: The thermochemical and flammability characteristics of some typical thermoplastic materials currently in use and others being considered for use in aircraft interiors are described. The properties studied included (1) thermomechanical properties such as glass transition and melt temperature, (2) changes in polymer enthalpy, (3) thermogravimetric analysis in anaerobic and oxidative environments, (4) oxygen index, (5) smoke evolution, (6) relative toxicity of the volatile products of pyrolysis, and (7) selected physical properties. The generic polymers that were evaluated included: acrylonitrile butadiene styrene, bisphenol A polycarbonate, 9,9 bis (4-hydroxyphenyl) fluorene polycarbomite-poly (dimethylsiloxane) block polymer, phenolphthalein-bisphenol A polycarbonate, phenolphthalein polycarbonate, polyether sulfone, polyphenylene oxide, polyphenylene sulfide, polyaryl sulfone, chloril]ated polyvinyl chloride homopolymer, polyvinyl fluoride, and polyvinylidene fluoride. Processing parameters, including molding characteristics of some of the advanced polymers, are described. Test results and relative rankings of some of the flammability, smoke, and toxicity properties are presented. Under these test conditions, some of the advanced polymers evaluated were significantly less flammable and toxic or equivalent to polymers in current use. |
| Report: |
FSR-0209 |
Pages: |
36 |
Size: |
1.18 MB |
| Title: |
Ignition And Progation Rates For Flames In A Fuel Mist |
| Author: |
C.E. Polymeropoulos, V. Sernas |
| Abstract: |
The droplet size distribution in various experimental air-fuel sprays was measured using a holographic method. There was good agreement between upper-limit log-normal velocity distribution functions and the droplet size data. The Sauter mean diameter, maximum droplet diameter, and air-fuel ration were also well represented by the area data. Measurements of burning velocities in the sprays tested were compared with calculated predictions, and the modified fuel sprays produced under wind shear conditions were also calculated. |
| Report: |
FAA-RD-76-31 |
Pages: |
39 |
Size: |
1.41 MB |
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