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Displaying 3251 - 3275 of 3892

Heat Flux From Flames to Vertical Surfaces

January 1, 1994
Author(s)
J. G. Quintiere, Thomas Cleary
Dimensional analysis is used to examine heat transfer from flames to vertical surfaces. Configurations include a line fire against a wall, a square burner flame against a wall and in a corner, and window flames impinging on a wall. Dimensionless parameters

Influence of Ignition Source on the Flaming Fire Hazard of Upholstered Furniture

January 1, 1994
Author(s)
Thomas G. Cleary, Thomas J. Ohlemiller, K M. Villa
A set of upholstered chairs constructed from five different fabric/foam combinations was subjected to a variety of ignition sources suggested by fire statistics. The sources included a cigarette, a small match-like flame, an incandescent lamp, a space

Oxidation of Soot and Carbon Monoxide in Hydrocarbon Diffusion Flames

January 1, 1994
Author(s)
R. Puri, R J. Santoro, K C. Smyth
Quantitative OH concentrations and primary soot particle sizes have been determined in the soot oxidation regions of axisymmetric diffusion flames burning methane, methane/butane, and methane/1-butene in air at atmospheric pressure. The total carbon flow

Pressure Equations in Zone-Fire Modeling

January 1, 1994
Author(s)
Ronald G. Rehm, Glenn P. Forney
The nonadiabatic nature of low-speed combustion and fire, in which strongly exothermic reactions produce large temperature variations but only mild pressure variations, can cause difficulty when integrating zone models of enclosure fires. Examples of

Radiometric Model of the Transmission Cell-Reciprocal Nephelometer

January 1, 1994
Author(s)
George W. Mulholland, Nelson P. Bryner
A radiometric model has been developed to assess the effects of angular truncation, finite size of the detector, and angle response characteristics of the cosine sensor on the measurement of the total scattering coefficient by a transmission cell

Role of Refrigerant Mixtures

January 1, 1994
Author(s)
David Didion
The primary approach industry has taken to fill the void resulting from the elimination of the most important CFCs (i.e., R11 and R12) has been to develop other single component refrigerants (i.e., HCFC-123 and HFC-134a) which have very low or zero ozone

Simulation of Dry Bay Discharge of Alternative Agents

January 1, 1994
Author(s)
Jiann C. Yang, Thomas G. Cleary, William L. Grosshandler
As a continuation of the USAF/Navy/Amy/FAA sponsored halon replacement project, the discharge characteristics of the three selected akernative agents (CFJ, FC-218. and HFC- 125) for dry bay applications will be further evaluated. Halon 1301 will also be

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
Displaying 3251 - 3275 of 3892
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