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Displaying 3276 - 3300 of 3908

Sidejet Strength and Mixing in Self-Excited Jets. [Abstract ONLY]

November 21, 1993
Author(s)
A W. Johnson, William M. Pitts
Absolutely unstable jet flows are known to produce vigorous and intermittent lateral ejections of fluid, or 'sidejets'. Sidejet generation has been attributed to the near-field interaction of axisymmetric vorticies, streamwise vorticies, and lobes formed

Rayleigh Light Scattering Studies of Turbulent Mixing

October 25, 1993
Author(s)
William M. Pitts
Turbulent combustion remains a very active research area. This interest is justified due to the pivotal role it plays in a wide variety of technologically important processes. Development of models for combusting flows is crucial for the more efficient

Agent Screening for Halon 1301 Aviation Replacement

October 20, 1993
Author(s)
William L. Grosshandler, Richard G. Gann, Anthony P. Hamins, Marc R. Nyden, William M. Pitts, Jiann C. Yang, Michael R. Zachariah
A comprehensive experimental program is described in which eleven gaseous agents and sodium bicarbonate powder have been screened, so that the best three candidates for subsequent full-scale aircraft fire extinguishment evaluation can be identified

Agent/System Compatibility for Halon 1301 Aviation Replacement

October 20, 1993
Author(s)
Richard G. Gann, E Braun, Thomas G. Cleary, Richard H. Harris Jr., F Horkay, Gregory T. Linteris, G B. McKenna, Marc R. Nyden, Richard D. Peacock, Richard E. Ricker, Mark R. Stoudt, W. K. Waldron
This project has developed measurement methods and provided data for the appraisal of 12 USAF-specified candidate halon 1301 replacements for compatibility with flight systems, people, and the environment. The exposures of metals, elastomers and lubricants

Smoke Plume Trajectory From In Situ Burning of Crude Oil in Alaska (NISTIR 5273)

October 1, 1993
Author(s)
Kevin B. McGrattan, Anthony D. Putorti Jr., W H. Twilley, D D. Evans
Experimentation, analysis, and modeling have been performed to predict the downwind dispersion of smoke resulting from in situ burning of oil spills. North Slope and Cook Inlet crude oils are burned on water in a 1.2 meter diameter pan. Smoke yields were

New Concepts for Fire Protection of Passenger Rail Transportation Vehicles

September 23, 1993
Author(s)
Richard D. Peacock, Richard W. Bukowski, Walter W. Jones, Paul A. Reneke
Recent advances in guided ground transportation, fire test methods, and hazard analysis necessitate re-examination of requirements for fire safety. Several studies have indicated nearly random ability of current tests to predict actual fire behavior. A

Test Methods for Quantifying the Propensity of Cigarettes to Ignite Soft Furnishings. Volume 2. [Also included is: Cigarette Extinction Test Method]

August 1, 1993
Author(s)
Thomas J. Ohlemiller, K M. Villa, E Braun, K Eberhardt, Richard H. Harris Jr., James R. Lawson
Research funded under the Fire Safe Cigarette Act of 1990 (P.L. 101-352) has led to the development of two test methods for measuring the ignition propensity of cigarettes. The Mock-Up Ignition Test Method uses substrated physically similar to upholstered

Assessing the Flammability of Composite Materials

July 30, 1993
Author(s)
Thomas J. Ohlemiller, Thomas G. Cleary, James E. Brown, John R. Shields
Composite materials offer the potential for substantial weight savings in the structure of both surface ships and submarines. However, the organic nature of the binder resins in these materials implies that one would be replacing non-flammable materials

Fire Evacuation by Elevators

June 1, 1993
Author(s)
J H. Klote, Scott Deal, E. A. Donoghue, Bernard M. Levin, N Groner
There is a rising concern for the safety of persons from fire who cannot travel building emergency exit routes in the same manner or as quickly as expected of able persons. One proposed solution for providing safety for these people is the use of elevators

Dynamics of the Release of Alternate Halon Replacement Agents From Pressurized Bottles

May 11, 1993
Author(s)
William M. Pitts, Jiann C. Yang, B D. Breuel, W G. Cleveland, G. Gmurczyk
Halon 1301 has been widely employed on military and commercial aircraft for fire fighting purposes. Unfortunately, due to the deleterious effects of chlorine and bromine on stratospheric ozone, the manufacture of halon 1301 will be phased out by the end of

Solubilities of Nitrogen and Freon-23 in Alternative Halon Replacement Agents

May 11, 1993
Author(s)
Jiann C. Yang, B D. Breuel, William L. Grosshandler
As part of the USAF-sponsored halon replacement project, solubility measurements of nitrogen and Freon-23 in eleven potential halon replacement agents and evaluations of the thermodynamic properties of the agents are currently being conducted at NIST. The

Structure of Inhibited Counterflowing Nonpremixed Flames

May 11, 1993
Author(s)
Anthony P. Hamins, M H. Yang, I K. Puri
Recent international agreements call for a halt to the manufacture of CF3Br (Halon 1301), a commonly used halon fire suppressant, due to its high ozone-depletion potential. Ideally, the search for replacement compounds should be guided by fundamental
Displaying 3276 - 3300 of 3908
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