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Buildings & Construction

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Displaying 751 - 775 of 3878

Impact of Test and Foam Design on Smoldering

May 14, 2013
Author(s)
Mauro Zammarano, Szabolcs Matko, Rick D. Davis
Smoldering propensity of fabrics used in upholstered furniture can be assessed using foam mockups according to the CPSC proposed regulation. This approach requires a polyurethane flexible foam with reproducible and well- characterized smoldering. The

Wildland-Urban Interface Fire Research Needs- Summary Report

May 14, 2013
Author(s)
Nelson P. Bryner, Erik L. Johnsson
In response to the increasing losses due to WUI fires and to ensure that measurement science keeps pace with needed improvements in materials, fire-resistant design, mitigation response, and building and fire codes, NIST sponsored the Workshop on Wildland

A stiff variable time step transport solver for CONTAM

May 10, 2013
Author(s)
David M. Lorenzetti, William Stuart Dols, Andrew K. Persily, Michael D. Sohn
CONTAM, a multizone model for predicting whole-building airflow and contaminant transport, has been updated to improve the speed and accuracy of its transport calculations. CVODE, a general-purpose code for solving ordinary differential equations, brings

Metrological Traceability for Guarded-Hot-Plate Apparatus

May 9, 2013
Author(s)
Robert R. Zarr
An approach for establishing metrological traceability for measurement results from guarded-hot-plate apparatus consistent with policy at the National Institute of Standards and Technology (NIST) is presented. A brief example for initiating met-rological

VISCOSITY AND DENSITY OF ALUMINUM OXIDE NANOLUBRICANT

May 8, 2013
Author(s)
Mark A. Kedzierski
This paper presents liquid kinematic viscosity and density measurements of a synthetic polyolester-based aluminum oxide (Al2O3) nanoparticle dispersion (nanolubricant) at atmospheric pressure over the temperature range 288 K to 318 K. Two Al2O3 particles

Greenhouse Gas Emissions and Dispersion 1. Optimum placement of gas inlets on a building rooftop for the measurement of greenhouse gas concentrations

April 22, 2013
Author(s)
Kuldeep R. Prasad, Anthony Bova, James R. Whetstone, Elena Novakovskaia
Inverse atmospheric dispersion models are used to provide measurement-based, or “topdown”, estimates of greenhouse gas (GHG) emissions for comparison with input-based, or “bottom-up”, estimates. To minimize uncertainty, inverse estimates require accurate

Sustainability through Lifecycle Synthesis of Material Information

April 19, 2013
Author(s)
Paul W. Witherell, Katherine C. Morris, Anantha Narayanan Narayanan, Jae H. Lee, Sudarsan Rachuri
The synthesis of material information across lifecycle stages will lay the foundation for a material information model to support sustainable decision making. This paper explores how material information is represented in select standards that address

The Exothermic Reaction of Fire Suppressants

March 13, 2013
Author(s)
Gregory T. Linteris, Valeri I. Babushok, Fumiaki Takahashi, Viswanath R. Katta, Oliver Meier
Several fire suppressants are under consideration to replace CF3Br for use in suppressing fires in aircraft cargo bays. In Federal Aviation Administration performance tests simulating the explosion of an aerosol can, however, the replacements HFC-125, 2-
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