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J D. Mather, R E. Tapscott, J M. Shreeve, R P. Singh
In work sponsored by the Next-Generation Fire Suppression Technology Program, research efforts at the New Mexico Engineering Research Institute extended earlier promising studies on alkyl phosphorus compound flame extinguishment performance to the study of
The Department of Defenses Next Generation Fire Suppression Technology Program (NGP) has completed its sixth year of research with a goal to develop and demonstrate technology for economically feasible, environmentally acceptable and user-safe processes
Kevin B. McGrattan, J E. Floyd, Glenn P. Forney, Howard R. Baum, Simo A. Hostikka
A new version of the NIST Fire Dynamics Simulator (FDS) was released in the fall of 2001. Improvements have been made to the combustion and radiation routines, allowing for better simulation of flashover. The combustion is based on a single transport
Fiber-reinforced polymer (FRP) composites, in the form of pultruded laminates or built-up woven fabrics, are being used widely to strengthen existing concrete and masonry structures. The success of these materials in performing their intended functions
This document contains the formal specification of MatML Version 3.0 - Schema in World Wide Web Schema Definintion Language and is an update of the previously released Annotated MatML DTD Working Draft Version 2.0. This update addresses the technical
This paper summarizes the accomplishments and new knowledge from NGP research. The paper concludes with an indication of the program direction for FY2003 and beyond.
Understanding suppression mechanisms of different fire-suppressing agents including CF 3Br (Halon 1301) and inert gases is useful for their efficient use and for developing new agents. Because of the similarities between unsteady jet diffusion flames
Experimental results are presented for a well-characterized, droplet-laden homogenous turbulent flow field around a cylindrical obstacle. Liquid agent transport was investigated around an unheated and heated cylinder under ambient conditions. Results for
The main goal of this study was to investigate the benefits possible for finned tube refrigerant evaporators when refrigerant distribution was precisely controlled to produce a desired equal superheat in each circuit. This goal was accomplished by
Rick D. Davis, Jeffrey W. Gilman, David L. VanderHart
Under injection molding conditions, typical of industrial processing, in situ polymerized montmorillonite/polyamide 6 nanocomposites significantly degraded, producing a four-fold increase in -caprolactam (monomer) content and a significant reduction in
This investigation compares the energy consumption ratings obtained for refrigerators using the Association of Home Appliance Manufacturers (AHAM) HRF-1 test procedure, as adopted by the United States Department of Energy (DOE), and the International
An experimental study is presented to determine the influence of liquid pool temperature on splashing behavior. Water droplets with initial diameter of 3.1 mm 0.1 mm impacted a water pool 40 mm in depth. The impaction process was recorded using a high
P E. Mlakar, D O. Dusenberry, J R. Harris, G A. Haynes, Long Phan, M A. Sozen
Following the September 11 crash at the Pentagon of an airliner commandeered by terorists, the American Society of Civil Engineering established a building performance study team to examine the damaged structure and make recommendations for the future. The
The Virtual Cement and Concrete Testing Laboratory (VCCTL) Consortium was formed in January 2001. Headquartered in the Building and Fire Research Laboratory (BFRL) at the National Institute of Standards and Technology (NIST), the consortium originally
This NISTIR serves as the user's manual for Version 3.0 of the Virtual Cement and Concrete Testing Laboratory (VCCTL). Using the VCCTL, a user may create starting microstructures of cement (gypsum, fly ash, etc.) particles in water, hydrate the
Takashi Kashiwagi, A B. Morgan, Joseph M. Antonucci, Mark R. VanLandingham, Richard H. Harris Jr., W H. Awad, John R. Shields
MMA, poly(metheylmethacrylate), nanocomposites were made by in situ radical polymerization of MMA, methylmethacrylate, with colloidal silica (ca. 12 nm) to study the effects of nanoscale silica particles on the physical properties and flammability
PCPS is an abbreviation for the Protective Clothing Performance Simulator, a software tool provided to help predict the thermal response of multi-layered fabrics to conditions that might be experienced during a fire. A proper analysis, and therefore
In work sponsored by the National Institute of Standards and Technology and the Next-Generation Fire Suppression Technology Program, our current research effort is directed toward the continued study of known promising as well as several new chemical
The ability to predict temperattures developed in compartment fires is of great significance to the fire protection professional. There are many uses for the knowledge of compartment fire temperatures, including the prediction of (1) the onset of hazardous
The National Institute of Standards and Technology (NIST) announced its 24-month building and fire safety investigation of the World Trade Center (WTC) disaster on August 21, 2002.NIST also released the final plan for its investigation at the same time
S I. Stoliarov, P R. Westmoreland, Marc R. Nyden, Glenn P. Forney
The theory and implementation of Reactive Molecular Dynamics (RMD) are presented in the context of providing an overview of our own RMD computer code, MD_REACT. The capabilities of RMD and its potential use as a tool for investigating the mechanisms of
Mechanics and materials are essential elements in all of the transcendent technologies that are the primary drivers of the twenty first century and in the new economy. The transcendent technologies include nanotechnology, microelectronics, information
The first priority for fire and rescue service personnel and all emergency first responders when responding to any call is the safety of all emergency personnel. Emergency first responders have been called to every recent terrorist attack in North America
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
This paper examines the effectiveness of nonlinear static procedures for seismic response analysis of buildings. Nonlinear static procedures are recommended in FEMA 273 (Guidelines for Seismic Rehabilitation of Buildings) for assessing the seismic