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Displaying 1 - 25 of 3841

Research on Fixture-Level Peak Probability of Water Use in Commercial Buildings

June 5, 2024
Tao Li, Steven Buchberger, Toritseju Omaghomi, Gary Klein, William M. Healy
novel wireless sensor network is developed and demonstrated for monitoring indoor fixture level water use in buildings. The new technology consists of a low-cost, battery-powered, miniature wireless sensor module for non-invasive detection of flow through

Advancements in Computational Wind Engineering Workshop Report

December 13, 2023
Donald Scott, Jennifer Goupil, Melissa Burton, Catherine Gorle, Ahsan Kareem, Ted Stathopoulos, Bradley Young
In September 2022, the Structural Engineering Institute of the American Society of Civil Engineers commenced a project under National Institute of Standards and Technology Contract No. 133ND22PNB730391 to develop workshops on Advancement in Computational

The persistence of smoke VOCs indoors: partitioning, surface cleaning, and air cleaning in a smoke-contaminated house

October 13, 2023
Jienan Li, Michael F. Link, Shubhrangshu Pandit, Marc Webb, Cholaphan Deeleepojananan, Kathryn Mayer, Lauren Garofalo, Katelyn Rediger, Dustin Poppendieck, Stephen Zimmerman, Marina Vance, Vicki Grassian, Glenn Morrison, Barbara Turpin, Delphine Farmer
Wildfires are increasing in frequency, raising concerns that smoke can permeate indoor environments and expose people to chemical air contaminants. To study smoke transformations in indoor environments and evaluate mitigation strategies, we added smoke to

Mechanical Ventilation in a Residential Building Brings Outdoor NOx Indoors with Limited Implications for VOC Oxidation from NO3 Radicals

October 10, 2023
Michael F. Link, Jienan Li, Jenna Ditto, Han Huynh, Jie Yu, Stephen Zimmerman, Andrew Shore, Katelyn Rediger, Jonathan Abbatt, Lauren Garofalo, Delphine Farmer, Dustin Poppendieck
Energy-efficient residential building standards require the use of mechanical ventilation systems that replace indoor air with air from the outdoors. Transient outdoor pollution events can be transported indoors via the mechanical ventilation system, and

Report on High Energy Arcing Fault Experiments: Experimental Results from Medium-Voltage Bus Duct and Switchgear Enclosures

September 15, 2023
Gabriel Taylor, Anthony D. Putorti Jr., Scott Bareham, Christopher U. Brown, Wai Cheong Tam, Ryan Falkenstein-Smith, Stephen Fink, Michael Heck, Edward Hnetkovsky, Nicholas Melly, Kenneth Hamburger, Kenneth Miller
This report documents an experimental program designed to investigate high energy arcing fault (HEAF) phenomena for medium-voltage, metal-enclosed bus ducts and switchgear. This report covers full-scale laboratory experiments using representative nuclear

National Institute of Standards and Technology Environmental Scan 2023: Societal and Technology Landscape to Inform Science and Technology Research

August 23, 2023
Ashley Boggs-Russell, Kerrianne Buchanan, David W. Griffith, Heather Evans, Dimitrios Meritis, Lisa Ng, Anna Sberegaeva, Michelle Stephens
The 2023 National Institute of Standards and Technology Environmental Scan provides an analysis of key external factors that could impact NIST and the fulfillment of its mission in coming years. The analyses were conducted through three separate lenses

Effect of Alkali-Silica Reaction on the Flexural Behavior of Beams with Tensile Lap Splices

March 31, 2023
Long Phan, Jonathan Weigand, Fahim H. Sadek, Adam L. Pintar, Sorin Marcu, Travis Thonstad, Timothy Barrett
A series of 19 beam specimens, with varying stirrup spacing and tensile lap splice lengths, were tested at the National Institute of Standards and Technology (NIST) under four-point loading to investigate the impact of alkali silica reaction (ASR) on the

Modelling Study of Interactions of Ozone and Hydrogen Peroxide on Indoor Surfaces

March 15, 2023
Dustin Poppendieck, Toby J. Carter, David Shaw, Nicola Carslaw
In recent decades, the role of the indoor microenvironment in our exposure to air pollutants has become clearer. Indoor air pollutants are emitted from common household items, including building materials and furnishings, and can then undergo chemical

Workshop on Incorporating Climate Change Data in U.S. Building Codes and Standards

March 8, 2023
Jason D. Averill, Therese P. McAllister, Andrew K. Persily, Scott Weaver, James Whetstone, Jiann C. Yang, Michael Kuperberg, Sumant Nigam, Alfredo Ruiz-Barradas
NIST hosted a workshop to advance the availability of climate information sought by organizations developing standards, model building codes, and voluntary certifications by convening interactions between the building codes and climate science communities.

Simulation of Residential CO Exposures from Portable Generators with and without CO Hazard Mitigation Systems Meeting Requirements of Voluntary Standards, Revision 1

December 28, 2022
Steven Emmerich, Brian Polidoro, Matthew Hnatov, Janet Buyer, Matthew Brookman
This report documents work performed by the U.S. National Institute of Standards and Technology (NIST) and the U.S. Consumer Product Safety Commission (CPSC or Commission) under an interagency agreement in support of the Commission's effort to address the


November 30, 2022
Selvarajah Ramesh, Lisa Choe, Matthew Hoehler, Matthew Bundy
This paper presents the results of compartment fire experiments conducted on 9.1 m × 6.1 m steel-concrete composite floors in a full-scale, two-story, two-bays by three-bays steel gravity frame building to investigate the fire resilience of these widely

Effects of Modeling Decisions on the Lateral Performance of Cold-Formed Steel Framed Walls

October 17, 2022
Zhidong Zhang, Matthew Speicher, Amanpreet Singh, Tara Hutchinson, Benjamin Schafer
This study proposes a modeling protocol for the lateral performance of cold-formed steel (CFS) framed wall-lines that contain both steel sheet sheathed shear walls as well as gravity walls and may include the impact of non-structural finish on these wall

Structure Separation Experiments: Shed Burns without Wind

September 15, 2022
Alexander Maranghides, Shonali Nazare, Eric Link, Matthew Bundy, Matthew Hoehler, Steven Hawks, Frank Bigelow, William (Ruddy) Mell, Anthony Bova, Derek McNamara, Tom Milac, Faraz Hedayati, Daniel Gorham, Xareni Monroy, Murray Morrison, Bob Raymer, Frank Frievalt, William Walton
This report describes the experiments conducted during the first phase of a multi-phase project designed to assess structure-to-structure fire spread for structures in the Wildland-Urban Interface (WUI). The experiments focused on quantifying thermal

Measurement Methods and Techniques for Pressure Losses in Pipe Fittings

June 25, 2022
Lingnan Lin, Marylia Duarte Batista, Natascha S. Milesi-Ferretti
Pressure losses in pipe fittings are important design information for sizing pipelines and selecting pumps. Currently, there is no standard method of test for determining the pressure loss of pipe fittings. To assist future development of a standard method

Measurement Methods and Techniques for Pressure Losses in Pipe Fittings

June 25, 2022
Lingnan Lin, Marylia Duarte Batista, Natascha S. Milesi-Ferretti
Pressure losses in pipe fittings are important design information for sizing pipelines and selecting pumps. Currently, there is no standard method of test for determining the pressure loss of pipe fittings. To assist future development of a standard method

Certification of Standard Reference Material(R) 114r Portland Cement Fineness

June 6, 2022
Eduarda Votri, Blaza Toman, Paul E. Stutzman
The SRM 114 series for portland cement fineness has been provided by NIST since 1934 for use in calibrating instruments for measuring fineness characteristics of portland cement and other powdered construction materials. SRM 114r is the latest of this
Displaying 1 - 25 of 3841