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Search Publications by: Anthony Hamins (Fed)

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Displaying 126 - 150 of 194

Heat Feedback to the Fuel Surface in Pool Fires (NIST SP 971)

August 1, 2001
Author(s)
Anthony P. Hamins, S. J. Fischer, Takashi Kashiwagi
A series of measurements designed to investigate the heat feedback in pool fires burning liquid fuels are reported. Such measurements are essential for the development and validation of detailed models which predict the burning rate of liquid hydrocarbons

Transient Application, Recirculating Pool Fire, Agent Effectiveness Screen. Final Report.

June 1, 2001
Author(s)
William L. Grosshandler, Anthony P. Hamins, Jiann C. Yang, Kevin B. McGrattan, Cary Presser
A three-year research effort has been conducted as part of the Next Generation Program (NGP) to develop a laboratory screening device suitable for predicting the behavior of halon alternatives in full-scale fire suppression experiments. Most of the work

Transient Application Recirculating Pool Fire, Agent Effectiveness Screen: Final Report

April 24, 2001
Author(s)
William L. Grosshandler, Anthony P. Hamins, Jiann C. Yang, Kevin B. McGrattan, Cary Presser
A three-year research effort has been conducted as part of the Next Generation Program (NGP) to develop a laboratory screening device suitable for predicting the behavior of halon alternatives in full-scale fire suppression experiments. Most of the work

Suppression of Low Strain Rate Flames by an Agent (NISTIR 6588)

November 1, 2000
Author(s)
Anthony P. Hamins, Matthew F. Bundy, I K. Puri
The structure and suppression of low strain rate methane-air nonpremixed flames were investigated experimentally and computationally. Measurements of the critical suppression conditions were conducted using N2, CO2, and CF3Br added to the fuel or oxidizer

Thermal Radiation From Large Pool Fires (NISTIR 6546)

November 1, 2000
Author(s)
Kevin B. McGrattan, Howard R. Baum, Anthony P. Hamins
In order to protect people and combustible structures from the thermal radiation emitted by a large fire, the Department of Housing and Urban Development (HUD) has established thermal radiation flux levels of 31.5 kW/m2 (10,000 Btu/h/ft2) for buildings and

Combustion Research Studies at the National Institute of Standards and Technology

January 1, 2000
Author(s)
Takashi Kashiwagi, William L. Grosshandler, Anthony P. Hamins, William M. Pitts, Cary Presser, Wing Tsang
The National Institute of Standards and Technology (NIST) is a federal agency within the Technology Administration of the Department of Commerce. NIST's primary mission is to develop and apply technology, measurements, and standards to promote economic

Fire Dynamics Simulator: Technical Reference Guide (NISTIR 6467)

January 1, 2000
Author(s)
Kevin B. McGrattan, Howard R. Baum, Ronald G. Rehm, Anthony P. Hamins, Glenn P. Forney
The idea that the dynamics of a fire might be studied numerically dates back to the beginning of the computer age. Indeed, the fundamental conservation equations governing fluid dynamics, heat transfer, and combustion were first written down over a century

Reduced Gravity Combustion of Thermoplastic Spheres

January 1, 2000
Author(s)
Jiann C. Yang, Anthony P. Hamins, Michelle K. Donnelly
A series of low-gravity experiments were conducted to investigate the combustion of supported thermoplastic polymer spheres under varying ambient conditions. The three types of thermoplastics investigated were polymethyl methacrylate (PMMA), polypropylene

Suppression of a Non-Premixed Flame Behind a Step

January 1, 2000
Author(s)
William L. Grosshandler, R Charagundla, Anthony P. Hamins, Kevin B. McGrattan, Cary Presser
Because of its many positive attributes, halon 1301 or trifluorobromomethane (CF 3Br), has been used as a fire extinguishing agent in many applications, including aircraft, ships, and specialized structures. Due to its high ozone depletion potential

Global Model for Predicting the Burning Rates of Liquid Pool Fires (NISTIR 6381)

September 1, 1999
Author(s)
Anthony P. Hamins, Jiann C. Yang, Takashi Kashiwagi
A global model is presented which predicts the mass burning flux for pool fires consuming liquid fuels in a quiescent environment. the model assumes constant bulk properties such as flame temperature, soot volume fraction, and species concentration. The

Modeling of Sprinkler, Vent and Draft Curtain Interaction

July 5, 1999
Author(s)
Kevin B. McGrattan, Anthony P. Hamins, Glenn P. Forney
The International Fire Sprinkler, Smoke & Heat Vent, Draft Curtain Fire Test Project organized by the National Fire Protection Research Foundation (NFPRF) brought together a group of industrial sponsors to support and plan a series of large scale tests to

Combustion of a Polymer (PMMA) Sphere in Microgravity (NISTIR 6331)

May 1, 1999
Author(s)
Jiann C. Yang, Anthony P. Hamins, Michelle K. Donnelly
A series of low gravity experiments were conducted to investigate the combustion of supported thermoplastic polymer spheres under varying ambient conditions. The three types of thermoplastic investigated were polymethylmethacrylate (PMMA), polypropylene

Transient Agent, Recirculating Pool Fire (TARPF) Suppression Screen (NISTIR 6242)

October 1, 1998
Author(s)
William L. Grosshandler, Anthony P. Hamins, Kevin B. McGrattan, Cary Presser
The amount of a gaseous agent required to extinguish fires in full-scale engine nacelle tests varies greatly with the geometry of the fixture and the manner in which the flame is stabilized. It has been observed that if the test is designed to allow fuel

Using Bench Scale Fire Measurements in Large Scale Simulations (NISTIR 6242)

October 1, 1998
Author(s)
Kevin B. McGrattan, Anthony P. Hamins, L G. Blevins
A program is underwat at NIST to develop a numerical field model, referred to as the Industrial Fire Simulator (IFS), to simulate large scale fire phenomena. Because the model is intended to simulate fire flows within buildings whose volumes are on the

Sprinkler, Smoke and Heat Vent, Draft Curtain Interaction: Large Scale Experiments and Model Development. International Fire Sprinkler-Smoke and Heat Vent-Draft Curtain Fire Test Project (NISTIR 6196-1)

September 1, 1998
Author(s)
Kevin B. McGrattan, Anthony P. Hamins, D W. Stroup
The International Sprinkler, Smoke and Heat Vent, Draft Curtain Fire Test Project organized by the National Fire Protection Research Coundation (NFPRF) has brought together a group of industrial sponsors to study the interaction of sprinklers with roof

Flame Extinction by Sodium Bicarbonate Powder in a Cup Burner

August 2, 1998
Author(s)
Anthony P. Hamins
An apparatus was developed for testing the extinction efficiency of a solid powder in a coflowing non-premixed flame. Extinction measurements were performed by adding agent quasistatically to the oxidizer stream until flame extinction was observed. The

Sprinklers, Vent, and Draft Curtain Interaction: Modeling and Experiment

February 25, 1998
Author(s)
Kevin B. McGrattan, Anthony P. Hamins, D. D. Evans
The second and most recent application of the NIST Industrial Fire Simulation (IFS) System is to predict the performance of sprinklers, draft curtains and roof vents in storage facilities and retail spaces. The IFS System is a series of computational fluid

Inhibition Effectiveness of Halogenated Compounds

January 1, 1998
Author(s)
T Noto, Valeri I. Babushok, Anthony Hamins, Wing Tsang
A numerical study of the inhibition efficiency of halogenated compounds was carried out for C1-C2 hydrocarbon-air laminar premixed flames. The inhibition efficiency of CF3Br, CF3I, CF3H, C2HF, C2F6, and CF4 additives was interpreted using an additive group