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Displaying 176 - 200 of 224

Solid Propellant Gas Generators: Proceedings of the 1995 Workshop (NISTIR 5766)

November 1, 1995
Author(s)
Jiann C. Yang, William L. Grosshandler
A workshop on solid propellant gas generators was held on June 28-29, 1995 at the National Institute of Standards and Technology under the sponsorship of the Building and Fire Research Laboratory. Gas generator technology was first proposed as alternative

Suppression of Engine Nacelle Fires (NIST SP 890)

November 1, 1995
Author(s)
Anthony P. Hamins, Thomas G. Cleary, P. Borthwick, N Gorchkov, Kevin B. McGrattan, Glenn P. Forney, William L. Grosshandler, Cary Presser, L Melton
A series of experimental measurements were conducted and simple models were developed in an effort to provide an improved understanding of the influence of various parameters on the processes controlling flame stability in engine nacelle applications. The

Assessing Halon Alternatives for Aircraft Engine Nacelle Fire Suppression.

May 1, 1995
Author(s)
William L. Grosshandler, Cary Presser, Daniel L. Lowe, William J. Rinkinen
A coaxial turbulent spray burner was built to evaluate the relative effectiveness of different chemicals for suppressing fires in a jet engine nacelle. The fire suppressant of current choice, halon 1301 (CF3Br), must be replaced because of its detrimental

Pipe Flow Characteristics of Alternative Agents for Engine Nacelle Fire Protection

January 1, 1995
Author(s)
Thomas G. Cleary, Jiann C. Yang, William L. Grosshandler, Michelle King, C I. Boyer
As part of the U.S. Air Force, Army, Navy and FAA Halon Replacement Project at NIST, the pipe flow characteristics were investigated for three engine nacelle alternative candidates: HFC-227ea, HFC-125 and CF31. The flow regime in suppression system piping

SELECTION OF A SIMULANT OF CF3Br FOR USE IN ENGINE NACELLE CERTIFICATION TESTS

January 1, 1995
Author(s)
C A. Womeldorf, William L. Grosshandler, M Mitchell
This paper describes the selection of a simulant of CF3Br for the purpose of certification testing engine nacelles fire suppression systems. In order to illustrate the storage, delivery, and distribution requirements of CF3Br, relevant characteristics of

Suppression of Simulated Engine Nacelle Fires (NISTIR 5499)

October 17, 1994
Author(s)
Anthony P. Hamins, D. Baghdadi, P. Borthwick, M Glover, William L. Grosshandler, D L. Lowe, L Melton, Cary Presser
The engine nacelle encases the jet engine compressor, combustor and turbine. A nacelle fire is typically a turbulent diffusion flame stabilized behind an obstruction in a moderately high speed air flow. The most likely source for a fire in the nacelle are

Flame Suppression Effectiveness of Halon Alternatives (NISTIR 5499)

September 1, 1994
Author(s)
William L. Grosshandler, Anthony P. Hamins
The elimination of new production of halon 1301 has forced the manufacturers, owners, and users of aircraft to search for an alternative. The program described here developed performance screens for candidate agents as a means to identify the best

Pipe Flow Characteristics of Alternative Agent/Nitrogen Mixtures (NISTIR 5499)

September 1, 1994
Author(s)
Thomas G. Cleary, M D. King, Jiann C. Yang, William L. Grosshandler
The evaluation of alternative agents for application in engine nacelle fire protection includes delivery efficiency of agent from a remote storge bottle through piping to the nacelle injection loacation. Present military requirements for halon systems

Computer Simulation of the Liquid Agent Spray Motion and Evaporation

July 18, 1994
Author(s)
G. Gmurczyk, Leonard Y. Cooper, William L. Grosshandler, William M. Pitts
The discharge of a liquid fire extinguishing agent stored in a pressurized vessel through an orifice generates a freely moving spray outside the vessel. The flow has been modeled as a two-phase, three-component, turbulent, compressible, dissipative flow
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