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Fire

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Displaying 2351 - 2375 of 3902

Discharge of CF3I in a Cold Simulated Aircraft Engine Nacelle

April 30, 2002
Author(s)
Jiann C. Yang, Samuel L. Manzello, Marc R. Nyden, M D. Connaghan
An aircraft engine nacelle refers to the region between the engine body and its casing. Fuel and hydraulic lines, pumps, and lubrication systems are located within the nacelle. Air is vented through the nacelle to prevent any build-up of combustible vapors

Performance of Personal Alert Safety Systems in Laboratory and Full-Scale Experiments

April 18, 2002
Author(s)
Nelson P. Bryner, Daniel M. Madrzykowski, D W. Stroup, J H. Lee
In 1998, over 500 firefighters in the United States were trapped in structure fires that resulted in injury or death of firefighters. Firefighters can be quickly overcome by the heat or smoke of a fire and may be unable to alert other fire ground personnel

Size-Monodisperse Metal Nanoparticles Via Hydrogen-Free Spray Pyrolysis

April 3, 2002
Author(s)
Jung Hyeun Kim, Thomas A. Germer, George Mulholland, S H. Ehrman
Pure copper nanoparticles were produced using a co-solvent approach avoiding use of hydrogen or other reducing gas. Compared with the particles formed without the co-solvent, the addition of alcohol has a significant effect in preventing oxidation, which

BEES 2.0: Building for Environmental and Economic Sustainability Peer Review Report

April 1, 2002
Author(s)
M A. Curran, J G. Overly, P Hofstetter, R Muller, Barbara C. Lippiatt
This report documents the results of a technical review of the BEES (Building for Environmental and Economic Sustainability) 2.0b software and user manual. BEES measures the life-cycle environmental and economic performance of building products using

Refrigerant Flow Through Flexible Short-Tube Orifices

April 1, 2002
Author(s)
William V. Payne, Y C. Kim, Dennis L. O'Neal, Mohsen Farzad
Flexible short-tube orifices were designed to decrease their diameter as the pressure differential across them increases under high outdoor temperatures. A series of tests for an R-22/lubricant mixture (mass fraction of oil 1.2%) were performed with two

Refrigerant Flow Through Flexible Short-Tube Orifices

April 1, 2002
Author(s)
Y Kim, D L. O'Neal, William V. Payne, MD L. Farzad
A series of tests for a R-22/lubricant mixture (1.2 % oil concentration) were performed with two flexible short tube orifices to develop flow data over a range of typical air conditioner operating conditions. One orifice had a modulus of elasticity of 7063

Stoichiometry of Slag Hydration With Calcium Hydroxide

April 1, 2002
Author(s)
J M. Richardson, Joseph J. Biernacki, Paul E. Stutzman, Dale P. Bentz
The stoichiometry of the reaction between ground granulated blast furnace slag (GGBFS) having an empirical formula of C 7.d88^ S 7.39 and calcium hydroxide (CH) was investigated. Scanning electron microscopy (SEM) was used to determine the slag consumption

Evaluation of the Computer Fire Model DETACT-QS

March 20, 2002
Author(s)
Morgan J. Hurley, Daniel M. Madrzykowski
The proper use of engineering design methods requires an understanding of their applicability and limitations, since all design methods are, at least to a certain extent, empirically based. Equations or constants used within design methods are frequently

New Tools for Specifying BACnet

March 1, 2002
Author(s)
Steven T. Bushby
The BACnet communication protocol standard makes it possible to integrate a wide variety of building automation and controlproducts. Building owners and the consulting engineering community have had difficulty understanding how to write quality

Particle Formation in Laminar Flames Inhibited by Metals

March 1, 2002
Author(s)
Gregory T. Linteris, M D. Rumminger
Some organometallic compounds of iron are two orders of magnitude more effective at volume fraction than CF 3Br in premixed flames, an order of magnitude more effective in counterflow diffusion flames. The condensation of active gas-phase iron-containing

Promoting Quality in Laboratory Testing

March 1, 2002
Author(s)
J H. Pielert
The Cement and Concrete Reference Laboratory (CCRL) provides laboratory inspection and proficiency sample programs that are used to evaluate testing laboratory competency. CCRL, which is sponsored by ASTM, along with the American Association of State

Quantum Efficiency of Spectral UV on Polyurethanes

March 1, 2002
Author(s)
Tinh Nguyen, Jonathan W. Martin, E Byrd, E Embree
Polyurethanes (PU) are used extensively as exterior building materials. However, PU undergoes degration during outdoor exposure. The quantum efficiency of spectral UV on photodegration of an acrylic-urethane coating has been investigated. Samples of
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