An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
This technical reference document was developed in the International Collaborative Project to Evaluate Fire Models for Nuclear Power Plant Applications. The objective of the collaborative project is to share the knowledge and resources of various
James J. Filliben, K Gurley, J P. Pinelli, Emil Simiu, M Subramanian
This note presents a conceptual framework for the definition of basic damage states and of the corresponding fragility curves and conditional probabilities, and its use for the estimation of damage matrices. The framework is designed with two
This paper presents results of NIST's experimental program on the effects of elevated temperature exposure on the mechanical properties and potential for explosive spalling of high strength concrete (HSC). Mechanical properties of HSC were measured by
Mark W. Davis, Arthur H. Fanney, Brian P. Dougherty
The lack of predictive performance tools creates a barrier to the widespread use of building integrated photovoltaic panels. The National Institute of Standards and Technology has created a building integrated photovoltaic (BIPV) test bed to capture
Naural ventilation systems have long been employed in European residences to control indoor air quality. European building designers have turned to natural ventilation to control air quality and cool commercial and institutional buildings as well, hoping
Indoor air quality is currently addressed in the design process primarily through prescriptive building codes based on specified flow rates. However, a contaminant-based design approach opens the door to design innovation, offering opportunities for
This proceedings contains the papers from the 12th Halon Options Technical Working Conference. The topics covered include: results from the DoD Next Generation Fire Suppression Technology Program, total flood applications, passive fire protection
F Minciarelli, Fahim H. Sadek, Emil Simiu, Mircea Grigoriu
We propose a probabilistic methodology for developing improved estimates of extreme wind effects and load factors in standard provisions for wind loads. We obtained the following results: (1) the discrepancy between current estimates of safety indices for
The American Society of heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) has been revising Standard 62,Ventilation for Acceptable Indoor Air Quality since 1991. The two primary motivations for this revision have been 1) to convert the
Jason D. Averill, Richard D. Peacock, Richard W. Bukowski, Paul A. Reneke
This Report of Test documents the second series of full scale tests conducted as part of research into the performance of smoke alarms. The first series of tests, conducted in a manufactured home, consisted of fifteen experiments with instrumentation
The first priority for fire service personnel and all emergency first responders when responding to any call is the safety of all emergency personnel responding to the call. Emergency first responders have been called to every recent terrorist attack in
Chiara F. Ferraris, Vincent A. Hackley, A Aviles, C E. Buchanan
Particle size distribution (PSD) is an essential property of cement. The only standard method to measure the PSD of cement, namely ASTM C115, is limited in scope; this standard describes a method for determining fineness with a lower size detection limit
Joannie W. Chin, Jonathan W. Martin, E Byrd, Tinh Nguyen, N Embree, J D. Tate
Organic polymers are a commercially important class of materials that are being increasingly used in outdoor applications such as paints, coatings, sealants, siding and roofing membranes, to name just a few. One of the most damaging elements in the outdoor
A finite-element method is used to study the elastic properties of random three-dimensional porous materials with highly interconnected pores. We show that the Young's modulus, E, is practically independent of the Poisson's ratio of the solid phase, υs
Gregory T. Linteris, M D. Rumminger, Valeri I. Babushok, H K. Chelliah, T Lazzarini, P N. Wanigarathne
The purpose of the project was to: a.) identify which metal species would be effective flame inhibitors, and then b.) attempt to find non-toxic forms of the metal which could be used. Very early in the project, however, we determined that metal species-in
Arthur H. Fanney, Brian P. Dougherty, Mark W. Davis
Predictive performance tools could accelerate the implementation of integrated photovoltaics (BIPV. The National Institute of Standards and Technology (NIST) seeks to improve and validate previously developed computer simulation tools with experimental
Walter J. Rossiter Jr, Blaza Toman, M E. McKnight, M B. Anaraki
A laboratory study was conducted to evaluate the reliability of commercial, field-portable ultrasonic extraction-anodic stripping voltammetry (UE/ASV) for determining the lead levels of laboratory-prepared paint films when tests were performed by certified
Gregory T. Linteris, M D. Rumminger, Valeri I. Babushok, Harsha K. Chelliah, A K. Lazzarini, P N. Wanigarathne
The purpose of the project was to: a.) identify which metal species would be effective flame inhibitors, and then b.) attempt to find non-toxic forms of the metal which could be used. Very early in the project, however, we determined that metal species-in
Gregory T. Linteris, Vadim D. Knyazev, Valeri I. Babushok
The first experimental measurements of influence of manganese- and tin-containing compounds (MMT, TMT) on burning velocity of methane/air flames are presented. Comparisons with Fe(CO) 5 and CF 3Br demonstrate that manganese and tin-containing compounds are
Ronald G. Rehm, William M. Pitts, D D. Evans, Kuldeep R. Prasad, Kevin B. McGrattan, Glenn P. Forney
Mathematical models have been used to provide an initial estimate the behavior of the fires in the twin towers of the World Trade Center (WTC) on September 11, 2001. Available photographs and videos have provided an initial estimate of the exterior damage
Ronald G. Rehm, William M. Pitts, Howard R. Baum, D D. Evans, Kuldeep R. Prasad, Kevin B. McGrattan, Glenn P. Forney
Based on preliminary assumptions and analysis, mathematical models have been used to estimate the behavior of the fires in the twin towers of the World Trade Center (WTC) on September 11, 2001. The hijacked-plane collision with each tower produced
Ronald G. Rehm, William M. Pitts, Howard R. Baum, D D. Evans, Kuldeep R. Prasad, Kevin B. McGrattan, Glenn P. Forney
Based on preliminary assumptions and analysis, mathematical models have been used to estimate the behavior of the fires in the twin towers of the World Trade Center (WTC) on September 11, 2001. The hijacked-plane collision with each tower produced
Current procedures for estimating the peaks of the stochastic response of tall buildings to wind are based on the assumption that the response is Gaussian. Those procedures are therefore inapplicable to low-rise buildings, in which time histories of wind
Arthur H. Fanney, Brian P. Dougherty, Mark W. Davis
Buildings consume more than two-thirds of the electricity in the United States. The incorporation of photovoltaics into the buildings, referred to as building integrated photovoltaics (BIPV), offers an aesthetically pleasing means of displacing centrally
The accuracy of particle image velocimetry measurements in polydisperse sprays is investigated using simulations. The objective of the study is to determine if using droplets with a wide size distribution for the seed particles in PIV measurements biases