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The mass loss rate of Poly(methyl methacrylate) (PMMA) exposed to known radiant fluxes is simulated with two recently-developed numerical codes, the National Institute of Standards and Technology (NIST) Fire Dynamics Simulator (FDS) and the Federal
Amy E. Mensch, George G. Cajaty Barbosa Braga, Nelson P. Bryner
National Institute of Standards and Technology (NIST), conducted experiments which demonstrated a range of realistic thermal exposures and environmental conditions that firefighters could be exposed to. Self-contained breathing apparatus (SCBA) facepieces
Steel structures when exposed to fire develop significant fire induced forces and deformations, and these effects are to be properly accounted for in evaluating realistic response of structural systems. The current design methodologies are based on
Maria E. Garlock, Spencer E. Quiel, Ignacio Paya-Zaforteza
Reports by the National Institute of Standards and Technology (Gann 2005), the UK-based Institution of Structural Engineers (IStructE) (Roberts 2002), and a national workshop on state-of-the-art of structural-fire engineering (Kodur et al. 2007) all have
Hydrogen as an energy carrier has received much attention in recent years as a result of a confluence of economic, environmental, and political pressures on the continued use of fossil fuels. The benefits of using hydrogen fuel over fossil fuel products
Gregory T. Linteris, John L. Pagliaro, Peter B. Sunderland
The goal of the work was to determine the flammability of R1234ze(E) (C3H2F4) per the Japanese High Pressure Gas Law (see Appendix I). Tests were also performed with R32 (CH2F2), R134a (C2H2F4) and methane (CH4), to provide a baseline for comparison of the
This report documents the development and testing of the LES (Large Eddy Simulator) version of the WRF (Weather Research and Forecasting) model coupled with SFIRE, the wildland surface fire module, to simulate wildland fires. The relevance of this work to
The objective of this report is to support the development of descriptive statistics and associated measures of uncertainty for characterizing, tracking, and better understanding the root causes of the U.S. fire burden by identifying the relevant costs and
Dong H. Rim, Lance L. Wallace, Andrew K. Persily, Jung I. Choi
Indoor ultrafine particles (UFP, 24 nm. The model was parameterized using different values of the Hamaker constant for predicting the coagulation rate. Deposition was determined for two different conditions: central fan on vs. central fan off. For the case
Maria E. Garlock, Spencer E. Quiel, Ignacio Paya-Zaforteza
Reports by the National Institute of Standards and Technology (Gann 2005), the UKbased Institution of Structural Engineers (IStructE) (Roberts 2002), and a national workshop on state-of-the-art of structural-fire engineering (Kodur et al. 2007) all have
Cooking related fires are a leading cause of U.S. fire loss. Beginning in the mid 1980's, the National Institute of Standards and Technology, Consumer Product Safety Commission, and the home appliance industry undertook a comprehensive review 1 of
The National Institute of Standards and Technology (NIST) is the leader in the development of computer-based fire models that simulate the movement of fire gases and heat through a building and estimate the response of various fire protection systems. NIST
A new experimental apparatus, known as the NIST Reduced Scale Continuous Feed Firebrand Generator (the NIST continuous feed Baby Dragon) is presented for the first time. This version of the Firebrand Generator is based upon the NIST Dragon, the only
A number of computational tools have been developed in recent years to simulate the disproportionate (progressive) collapse behavior of multi-story reinforced concrete buildings. Under disproportionate collapse scenarios, beam-column connections of moment
Collapse analyses of a 10-story reinforced concrete frame building are carried out to investigate the robustness of structural systems against column removal scenarios. Computationally efficient reduced models are developed and used in the analyses. The
Hai S. Lew, Yihai Bao, Fahim Sadek, Joseph A. Main, Santiago Pujol, Mete Sozen
This report presents an experimental and computational study of two reinforced concrete beam-column assemblies, each comprising three columns and two beams. The two beam-column assemblies represent portions of the structural framing system of two ten-story
The present investigation was undertaken to construct a new and improved Dragons LAIR facility. This entailed removing the NIST Baby Dragon from the wind tunnel facility and inserting the new and improved NIST continuous feed Baby Dragon. The unique
Samuel L. Manzello, Seul-Hyun Park, Sayaka S. Suzuki, John R. Shields, Yoshihiko Hayashi
Attempting to experimentally quantify the vulnerabilities of structures to ignition from firebrand showers has remained elusive. The coupling of a two unique facilities has begun to unravel this difficult problem. The NIST Firebrand Generator (NIST Dragon)
Evacuation models, including engineering hand calculations and computational tools, are used to evaluate the level of safety provided by buildings during evacuation. Building designs and occupant procedures are based on the results produced from these
Seul-Hyun Park, Samuel Manzello, Matthew Bundy, Tensei Mizukami
The National Institute of Standards and Technology (NIST) and the Center for Better Living (CBL) have formed an international collaboration to assess the performance and failure mechanisms of gypsum wall assemblies under real fires/furnace conditions. In
This paper presents a simple model to demonstrate the effect on grass-fire propagation of the winds induced by structural fires in a Wildland-Urban Interface (WUI) setting. The model combines an empirical formula for wind-driven grass-fire spread and a
Jiann Yang, William M. Pitts, Marco Fernandez, Kuldeep Prasad
An experimental apparatus, which was based on the ¿-scale garage previously used for studying helium release and dispersion in our laboratory, was used to obtain effective diffusion coefficients of helium and hydrogen (released as forming gas for safety
An international workshop was held within the Fire Research Division at NISTs Engineering Laboratory on June 27th, 2011. The workshop was entitled Urban and Wildland-Urban Interface (WUI) Fires: A Workshop to Explore Future Japan/USA Research
Anthony D. Putorti Jr., Francine K. Amon, Kathryn M. Butler, Catherine A. Remley, William F. Young, Christina Spoons
One of the most important aspects of effective firefighter response to an emergency event is awareness of the location of the firefighters involved, especially in cases with limited visibility due to darkness, heavy smoke, or unfamiliar and changing
Anthony D. Putorti Jr., William F. Guthrie, Jason D. Averill, Richard G. Gann
The U.S. Consumer Product Safety Commission (CPSC) initiated a program to determine the effects of emissions from problem drywall on residential electrical, gas distribution, and fire safety components. As part of this program, the National Institute of