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NIST Authors in Bold

Displaying 3151 - 3175 of 3873

Evaluation of Sprinkler Activation Prediction Methods

March 15, 1995
Author(s)
Daniel M. Madrzykowski
The objective of this study was to evaluate the ability of sprinkler activation models to predict activation time. Large scale compartment fire tests were used to obtain activation times for four different types of sprinklers. The tests were conducted in

Fast Variable-Amplitude Cold Gas Thruster

March 1, 1995
Author(s)
William C. Stone
A fast response variable amplitude cold gas thruster is described. A laboratory prototype comprised of a piezoelectric stack and an associated microporcessor-based programmable dc power source, a low-loss mechanical displacement amplifier, a high-pressure

Fire Performance of an Interstitial Space Construction System (NISTIR 5560)

February 1, 1995
Author(s)
James R. Lawson, E Braun, Laurean A. DeLauter, G Roadarmel
An interstitial space building construction assembly, consisting of a walk-on deck suspended from above by structural steel which also supported a functional floor, reproduce a design planned for use in a new hospital complex at Elmendorf Air Force Base

MODELING OF HYDROGEN FLUORIDE FORMATION FROM FLAME SUPPRESSANTS DURING COMBUSTION

January 1, 1995
Author(s)
Valeri I. Babushok, Donald R. Burgess Jr., Gregory T. Linteris, Wing Tsang, A W. Miziolek
We have completed an initial computational study related to acid gas formation for two of the leading near-term Halon substitutes, FE-13 (CF,H) and HFC-125 (C,F,H), and compared these results with Halon 1301 (CF,Br). Our goal is to determine whether we can

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

Upward Flame Spread on Composite Materials

January 1, 1995
Author(s)
Thomas J. Ohlemiller, Thomas G. Cleary
Three existing models of upward flame spread were tested against intermediate-scale experiments on a vinyl-ester/glass composite. Characterization of rate of heat release per unit area, needed as input to the models, was obtained at external radiant fluxes

Heat Release Mechanisms in Inhibited Laminar Counterflow Flames (Conference)

November 6, 1994
Author(s)
Ki Y. Lee, Don J. Cha, I K. Puri, Anthony Hamins
Both the chemical kinetic and thermal channels of inhibition must be simultaneously characterized in order to understand the effectiveness of chemical agents on flame stability. However, due to the participation of inhibitors in flame chemistry, it is

Simulating the Effect of Flat Beamed Ceiling on Detector and Sprinkler Response

November 6, 1994
Author(s)
Glenn P. Forney, Richard W. Bukowski, William D. Davis
This paper documents a portion of the work performed during the first year of the International Fire Detection Research Project sponsored by the National Fire Protection Research Foundation (NFPRF). The first task was to confirm that fire sensor response

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

Field Modeling: Simulating the Effect of Sloped Beamed Ceilings on Detector and Sprinkler Response. International Fire Detection Research Project. Technical Report. Year 2

October 1, 1994
Author(s)
William D. Davis, Glenn P. Forney, Richard W. Bukowski
The rapid activation of fire detection and suppression systems in response to a growing fire is one of the important factors required to provide for life safety and property protection. Rapid activation requires that sensors be located at optimal distances

Visual Measurement Technique for Analysis of Nucleate Flow Boiling (NISTIR 5519)

October 1, 1994
Author(s)
Mark A. Kedzierski, J. M. Crowder, A. M. Jacobi, L. Zhang
This report records a visual measurement technique for analyzing bubbles formed by nucleate flow boiling. The purpose of measuring these bubbles is to expand understanding the boiling process. By studying the behavior of these vapor bubbles, a better

Acid Gas Production in Inhibited Premixed Flames (NISTIR 5499)

September 1, 1994
Author(s)
Gregory T. Linteris, M D. King, A Liu
Halogenated fire extinguishing agents such as CF3Br decompose in flames to form hydrogen halides such as HF and HBr and other toxic and corrosive products. Possible replacements for halon 1301 are required in significantly higher concentrations to
Displaying 3151 - 3175 of 3873
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