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NIST Authors in Bold

Displaying 1 - 25 of 3854

Systematic Review of Embodied Carbon Assessment and Reduction in Building Life Cycles

September 18, 2024
Author(s)
Yating Zhang, Siamak Sattar, Dustin Cook, Katherine Johnson, Juan Fung
The building and construction sector is the largest carbon emitter, accounting for more than one-third of annual global emissions. The emissions can be divided into operational and embodied carbon, associated with building operations and building materials

Additive Construction in Practice - Realities of Acceptance Criteria

September 4, 2024
Author(s)
Shawn Platt, Eric Kreiger, Megan Kreiger, Stephan Mansour, Sean Monkman, Mohammad Aghajani Delavar, Petros Sideris, Casey Roberts, Mathew Friedell, Scott Jones
Additive Construction has increased dramatically within the United States in the last few years. Efforts to develop acceptance criteria have increased since 2020 and are being developed through integration of research efforts and early engagement with

Detecting Firefighter's Tenability Utilizing Machine Learning

August 30, 2024
Author(s)
Qi Tong, Hongqiang FANG, Eugene Yujun Fu, Wai Cheong Tam, Thomas Gernay
The proposed research aims to leverage machine learning to detect thermal operating classes and improve the tenability of firefighters in a commercial building. A total of 3000 simulations are run with FDS to collect temperature from heat detectors. The

Database-assisted-design facilitating performance-based tall building design

July 17, 2024
Author(s)
Daniel Rhee, Sophie Sisson, Brian Carman, Mehedy Mashnad, DongHun Yeo
In recent years, wind design, particularly for high-rise buildings, has seen a paradigm shift from a code-based descriptive method to a more specific performance-objective-based design. This new approach, known as the Performance-Based Wind Design (PBWD)

Test Facility for Pressure Losses in Plumbing Pipes and Fittings

July 15, 2024
Author(s)
Lingnan Lin, Natascha S. Milesi-Ferretti, Glen A. Glaeser
This report describes a new test facility at NIST for the measurement of pressure losses in pipes and fittings used in plumbing systems. Pressure losses are fundamental inputs to the design of premise plumbing systems, yet the available technical data on

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

July 1, 2024
Author(s)
Gabriel Taylor, Anthony D. Putorti Jr., Scott Bareham, Christopher U. Brown, Wai Cheong Tam, Michael Heck, Lucy Fox, Stephen Fink, Michael Selepak, Edward Hnetkovsky, Nicholas Melly, Kenneth Hamburger, Kenneth Miller
This report documents an experimental program designed to collect data and information to evaluate the performance of models developed to estimate the electrical high energy arcing fault (HEAF) hazard. This report covers full-scale laboratory experiments

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

June 5, 2024
Author(s)
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

Ozone generation and chemistry from 222 nm germicidal ultraviolet light in a fragrant restroom

May 20, 2024
Author(s)
Michael F. Link, Rileigh Robertson, Andrew Shore, Behrang Hamadani, Christina Cecelski, Dustin Poppendieck
Devices using 222 nm germicidal ultraviolet light (GUV222) have been marketed to reduce virus transmission indoors with low risk of occupant harm from direct UV exposure. GUV222 generates ozone, an indoor air pollutant and oxidant, under constrained

Advancements in Computational Wind Engineering Workshop Report

December 13, 2023
Author(s)
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
Author(s)
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
Author(s)
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
Author(s)
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
Author(s)
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
Author(s)
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
Author(s)
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
Displaying 1 - 25 of 3854