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Piotr A. Domanski, Hugh Henderson, William V. Payne
Numerous studies and surveys indicated that typically-installed HVAC equipment operates inefficiently and wastes considerable energy due to different installation errors (faults), e.g., improper refrigerant charge, incorrect airflow, oversized equipment
In the early part of the 1970's built-up-roofing dominated the U.S. membrane roofing industry. It was estimated that 10 to 15 percent of these roofs failed, but by the late 1980's new membranes were being rapidly adopted. Among them, EPDM (ethylene
The safe use of nanocomposites depends, in part, on a good understanding of the fate of nanofillers throughout the nanocomposite‘s lifecycle. Various modifications of ISO weathering protocols have been proposed to assess what is released and at which rate
This document is a critical assessment of building codes and standards pertaining to structural design for fire from the United States, Canada, European Union members, Japan, New Zealand and Australia. These countries were selected because of their
Nicos Martys, William L. George, Maxime Liard, Pascal Hebraud, Didier Lootens
It has been observed that flow curves (viscosity vs shear-rate) of spherical non-colloidal particles suspended in a non-Newtonian fluid matrix can be rescaled so as to collapse onto the flow curve of the matrix fluid. This result is surprising given the
Natascha S. Milesi-Ferretti, David Shipley, Walter Zalis, Steven T. Bushby
This report summarizes the results of the Building Commissioning Research and Measurement Science Needs Webinar Workshop held on April 29, 2014, sponsored by the National Institute of Standards and Technology. This effort supports ongoing research into
This report documents the effort launched by the National Institute of Standards and Technology (NIST) to develop, organize, and convene a workshop on sustainability to promote the adoption and use of sustainable construction and manufacturing and guide
This report documents the effort launched by the National Institute of Standards and Technology (NIST) to develop, organize, and convene a workshop on sustainability to promote the adoption and use of sustainable construction and manufacturing and guide
Erica D. Kuligowski, Richard Peacock, Paul A. Reneke, Emily A. Wiess, Jason D. Averill, Robert Hagwood, Enrico Ronchi, Bryan Hoskins, Michael Spearpoint
The time that it takes an occupant population to reach safety when descending a stairwell during building evacuations is typically described by measureable engineering variables such as stairwell geometry, speed, density, and pre-evacuation delay. In turn
Mark A. Kedzierski, William V. Payne, Harrison M. Skye
This paper recommends research that is required to develop and, thus, enable cost effective, residential electricity storage systems for renewable energy. As residential electricity generation from renewable sources becomes more prevalent, residential
Maria Garlock, Jo? Kruppa, Guo-Qiang Li, Li, Bin Zhao
This white paper presents the state-of-the-art of large-scale experiments, modeling, and performance- based design efforts in fire behavior of steel structures
This white paper presents the current, international, state-of-the-art large-scale experimental, modeling, and performance-based design (PBD) efforts related to structural fire resistance of concrete structures. The paper addresses these topics with
Andrew Buchanan, Birgit SP Wood Technology, Sweden tman, Andrea Frangi
Fire resistance of timber structures is a very large field. In order to keep this document relatively small, the scope of is limited as follows: This report attempts to define a Performance-Based framework for the fire safety design of multi-story timber
Results and analyses of a sensitivity study of six control factors on the response of the National Institute of Standards and Technology 500 mm guarded-hot-plate apparatus are presented. The effects of four factors held constant as well as three
Robert R. Zarr, Nathanael A. Heckert, Stefan D. Leigh
Thermal conductivity data acquired previously for the establishment of Standard Reference Material (SRM) 1450, Fibrous Glass Board, as well as subsequent renewals 1450a, 1450b, 1450c, and 1450d are re-analyzed collectively and as individual data sets
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
Chi Hoang, Tinh Nguyen, Deborah Jacobs, Andrew K. Persily, Richard Cosi
Wood is gaining increased interest as a renewable building material. However, color changes, chemical and microbiological degradation can occur when lignocellulosic materials are exposed to environmental stressors such as ozone and elevated humidity. In
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
This paper quantifies the influence of acoustic excitation of Al2O3 nanoparticles on the pool boiling performance of R134a/polyolester mixtures on a Turbo-BII-HP boiling surface. A nanolubricant with 10 nm diameter Al2O3 nanoparticles at a 5.1 % volume
In this paper, we consider how high performing, sustainable building programs and designs are currently addressing indoor air quality (IAQ) and how they might improve their treatment of IAQ. As part of this effort, we reviewed 100 case studies of high
Dustin G. Poppendieck, Lisa C. Ng, Matthew P. Schlegel, Andrew K. Persily, Alfred Hodgson
This study evaluated the effectiveness of a low-VOC (volatile organic compounds) specification designed to minimize occupant exposures to indoor air pollutants in a net-zero energy research house meeting the ASHRAE Standard 62.2 ventilation requirements
Dustin G. Poppendieck, Steven J. Nabinger, Matthew P. Schlegel, Andrew K. Persily
The desire to build more energy efficient homes in the United States has lead to the expansion of the residential spray polyurethane foam (SPF) insulation industry. Annually, over 100,000 homes in the United States are constructed or retrofit using SPF
Todays low energy and sustainable buildings often call for innovative designs involving strategies such as natural ventilation. However, natural ventilation airflows are often difficult to estimate, in large part due to the unsteadiness of the wind. This