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Buildings & Construction

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Displaying 576 - 600 of 3878

Simulation Methodology for Coupled Structural Fire Analysis

May 28, 2015
Author(s)
Chao Zhang, Julio C. Goncalves Da Silva, Craig G. Weinschenk, Daisuke Kamikawa, Yuji Hasemi
Advanced simulation methods are needed to precisely predict the complex behavior of structures exposed to natural fire conditions. Fire Dynamics Simulator (FDS) is a computational fluid dynamics (CFD) code, developed by NIST for fire related simulations

Enhancement of Premixed Methane-Air Flames by Halon 1301 Replacements

May 16, 2015
Author(s)
John L. Pagliaro, Gregory T. Linteris, Peter B. Sunderland
Apparent combustion enhancement by some halon replacement fire suppressants (proposed for use in aircraft cargo bays) has been observed in full-scale, constant-volume tests at the FAA. In order to explore the phenomena, laboratory-scale constant-volume

Improving infiltration modeling in commercial building energy models

May 15, 2015
Author(s)
Lisa C. Ng, Andrew K. Persily, Steven J. Emmerich
As building envelope performance and HVAC equipment efficiencies are increasingly improved to reduce building energy use, a greater percentage of the total energy loss of a building can occur through envelope leakage. Although the energy impacts of

Net-Zero and Beyond! Design and Performance of NISTs Net-Zero Energy Residential Test Facility

May 15, 2015
Author(s)
Arthur H. Fanney, William V. Payne, Tania Ullah, Lisa C. Ng, Matthew T. Boyd, Farhad Omar, Mark W. Davis, Harrison M. Skye, Brian P. Dougherty, Brian J. Polidoro, William M. Healy, Joshua D. Kneifel, Betsy Pettit
A Net-Zero Energy Residential Test Facility has been constructed at the National Institute of Standards and Technology in Gaithersburg, Maryland. The facility is being used to demonstrate that a home similar in size, aesthetics, and amenities to those in

Indoor Air Quality in High-Performing Building Case Studies: Got Data?

May 12, 2015
Author(s)
Kevin Y. Teichman, Andrew K. Persily, Steven J. Emmerich
In this paper, we review how indoor air quality (IAQ) has been addressed in case studies of high-performing buildings (HPBs), specifically the case studies described in ASHRAE’s “High Performing Buildings” magazine. We find that nearly all of the reported

CONTAM To EnergyPlus Infiltration Features of the CONTAM Results Export Tool

March 30, 2015
Author(s)
Brian J. Polidoro, Lisa C. Ng, William S. Dols, Steven J. Emmerich, Andrew K. Persily
As building envelope performance and HVAC equipment efficiencies continue to be improved to reduce building energy use, a greater percentage of the total energy loss of a building can occur through envelope leakage. Although the energy impacts of

Design Challenges of the NIST Net Zero Energy Residential Test Facility

March 26, 2015
Author(s)
Betsy Pettit, Cathy Gates, Arthur H. Fanney, William M. Healy
Homeowners and builders have increasingly strived to build low energy use and environmentally friendly homes. As materials and equipment have improved, energy reduction as a goal has increasingly been replaced with the goal of net-zero energy use. But the

Field Measurement of Ventilation Rates

March 18, 2015
Author(s)
Andrew K. Persily
Ventilation rates have significant impacts on building energy use and indoor contaminant concentrations, making them key parameters in evaluating building performance. Ventilation rates have been measured in buildings for many decades and there are mature

Exothermic Reaction of Halogenated Hydrocarbons: WORKSHOP PROCEEDINGS

March 13, 2015
Author(s)
Gregory T. Linteris, Jeffrey A. Manion
A workshop was held at NIST Gaithersburg on October 27 and 28, 2014 to discuss the exothermic reaction of halogenated hydrocarbons. The industries that gathered to discuss the topic were the fire suppression, fire suppression in aircraft, and Heating
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