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Jiann C. Yang, Michelle K. Donnelly, William L. Grosshandler
Most of the current methods for fire suppression efficiency screening (e.g., cup burners) are designed for screening agents that can be delivered in the form of vapor. The search for alternatives to halons for fire suppression applications has identified
The magazine article describes the background, motivation, and structure of the monograph, and how the monograph describes the computational materials science of concrete. Monograph is found on http://ciks.cbt.nist.gov/garboczi
One method fire investigators use to determine the cause and origin of a fire is the study of patterns or "indicators" left on building components or building contents by the fire. Previous studies have shown that some traditionally used indicators have
This paper presents Local convective condensation Measurements for four refrigerants: R134, R410A (R32/R125, 50/50 % mass), R125, and R32 in a micro-fin tube. Both heat transfer and pressure drop measurements are provided. The heat transfer degradation
It is very rare to obtain complete 3-D information in the form of images of the microstructure of a material. Most often this information is incomplete because the resolution is inadequate, or is restricted to 2-D, via some kind of micrograph, or is not
Anthony P. Hamins, Thomas G. Cleary, Jiann C. Yang
An analysis is presented on the full-scale suppression experiments conducted during 1996 and 1997 in the F-22 engine nacelle fire simulator at Wright Patterson Air Force Base. Experiments investigated the relative effectiveness of halogenated agents and
Rebecca W. Portier, Richard Peacock, Paul A. Reneke
Fire Data Management System, FDMS, is a design for a computer database to store and retrieve fire test results obtained from bench-scale and real-scale tests as well as fire simulation programs. By storing available fire test values in a common format
The National Institute of Standards and Technology's [NIST], Building and Fire Research Laboratory [BFRL] is one of NIST's seven Laboratories. The mission of BFRL is to enhance the competitiveness of U.S. industry and public safety by developing
S K. Kunnath, A El-Bahy, A W. Taylor, William C. Stone
A comprehensive experimental study was undertaken in this research effort to investigate cumulative damage in reinforced concrete circular bridge piers. Twelve identical quarter-scale bridge columns, designed and fabricated in accordance with current
Laboratory studies of electromagnetic (EM) signal propagation through construction materials were carried out as part of the NIST initiative in Non-Line-of-Sight surveying technology. From these data it is possible to determine several important material
Richard D. Peacock, Paul A. Reneke, Walter W. Jones, Richard W. Bukowski, Glenn P. Forney
FAST is a collection of fire modeling tools which uses the underlying fire model CFAST and adds the routines of FIREFORM to provide engineering calculations of fire phenomena in compartmented structures. This manual provides documentation and examples for
Takashi Kashiwagi, Jeffrey W. Gilman, Marc R. Nyden
The fire safety of materials can be significantly enhanced by increased ignition resistance, reduced flame spread rates, reduced heat release rates, and reduced amounts of toxic and smoke products, preferably simultaneously. The use of more thermal stable
This paper reports recent progress in the development of a generic molecular dynamics model that accounts for the major chemical reactions involved in the thermal degradation of polymers. The strategy employed in the design of the most recent version of
This report documents the presentations and discussions that were made at the NIST workshop on fire performance of high-strength concrete. The workshop was held at NIST in Gaithersburg, MD on Feb 13-14, 1997 in collaboration with the Portland Cement
In lieu of testing each split system air conditioner and heat pump combination, an empirically based calculation procedure may be used for estimating a unit's Energy Efficiency Ratio at the 35 deg C (95 deg F) rating condition, EER(95). The procedure
The objective of this research project was to demonstrate a successful operation of a high efficiency heat pump employing a zeotropic mixture with a zero ozone-depletion and a small greenhouse warming potential (ODP and GWP, respectively). The project
ABSTRACT ONLY This paper addresses the development of FireCAD, a tool for performing Fire Hazard Analysis using the capabilities of the computer aided design tool, AUTOCAD, and the zone fire model, CFAST. FireCAD uses an AUTOCAD drawing as a basis for
[ABSTRACT ONLY] As part of a collaborative research project between the National Fire Protection Research Foundation and the Building and Fire Research Laboratory at NIST, the thermal response characteristics of a variety of large orifice and extra large
[ABSTRACT ONLY] In 1995, the Society of Fire Protection Engineers formed a task group to evaluate the scope, applications and limitations of computer models intended for use in the engienering evaluation and design of fire and life safety measures. The
M D. King, Jiann C. Yang, W. S. Chien, William L. Grosshandler
An experimental study on the evaporation of a small water droplet containing an additive on a heated, polished stainless-steel surface was performed. Solutions of water containing 30% (w/w) and 60% (w/w) of potassium acetate and sodium iodide were used in
The report presents basic features of the evaporator model, EVAP5M, and simulation results for an evaporator operating with R-22 and R-407C at non-uniform air and refrigerant distributions. EVAP5M was developed under this project to provide a tool for
Presently, the Consolidated Fire and Smoke Transport Model zone fire model (CFAST) assumes that smoke travels instantly from one side of a compartment to another. As a result, upper layers start forming in compartments connected to the end of long corridor
M E. McKnight, Jonathan W. Martin, Michael A. Galler, Robert R. Lipman, Theodore V. Vorburger, Ambler Thompson, Fern Y. Hunt
This is a conference report on the Workshop on Advanced Methods and Models for Appearance of Coatings and Coated Objects held at Gaithersburg, MD, May 20, 1996.
A good metrology system in the automated environment must (1) measure the three dimensional position and attitude of any component to a reasonable degree of accuracy; (2) acquire these data fairly rapidly; and (3) be capable of making reliable measurements