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Fire

Fire dynamics & science

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Displaying 76 - 100 of 110

The NIST 20 MW Calorimetry Measurement System for Large-Fire Research

December 26, 2019
Author(s)
Rodney A. Bryant, Matthew F. Bundy
The National Fire Research Laboratory is a unique large-fire research facility; able to characterize the response of full-scale building systems to realistic mechanical loading and fire. The facility maintains an infrastructure of measurements necessary

Measurements and Predictions of Thermophoretic Soot Deposition

November 1, 2019
Author(s)
Amy E. Mensch, Thomas G. Cleary
A thin laminar flow channel with a transverse temperature gradient was used to examine thermophoretic deposition of soot aerosol particles in experiments and modeled in Fire Dynamics Simulator (FDS) simulations. Conditions investigated included three

Thin Filament Pyrometry Field Measurements in a Medium-Scale Pool Fire.

September 13, 2019
Author(s)
Zhigang Wang, Andy Tam, Jian Chen, Ki Y. Lee, Anthony Hamins
This paper presents the development of a thin filament pyrometry method to characterize the time- varying temperature field in a medium-scale pool fire in a quiescent environment. A digital camera with optical filters and zoom lens was used to record the

Energy Balance in Medium-Scale Methanol, Ethanol, and Acetone Pool Fires

July 1, 2019
Author(s)
Sung C. Kim, Ki Y. Lee, Anthony Hamins
Several series of measurements were made to characterize medium-scale pool fires steadily burning in a well-ventilated, quiescent, open environment. Time-averaged local measurements of radiative and total heat flux were made in steadily burning methyl

R-152a/air and R-134a/oxygen constant volume spherical flame burning velocity measurements

March 25, 2019
Author(s)
Robert R. Burrell, Gregory T. Linteris, Donald R. Burgess Jr., Michael J. Hegetschweiler, Jeffrey A. Manion, Valeri I. Babushok
Many presently used refrigerants are non-flammable but are being phased out due to concerns about their strong global warming potential (GWP). Replacements with low GWP exist but tend to be flammable with a maximum burning velocity in air between 1 cm/s

Improving Measurement for Smokestack Emissions - Workshop Summary

September 21, 2018
Author(s)
Rodney A. Bryant, Aaron N. Johnson, John D. Wright, Tamae M. Wong, James R. Whetstone, Michael R. Moldover, Iosif I. Shinder, Scott Swiggard, Chris Gunning, David Elam, Tom Martz, Eric Harman, David Nuckols, Liang Zhang, Woong Kang, Salvator Vigil
The complex flow conditions inherent in power plant smokestacks make accurate flow measurements challenging, which in turn limits the accuracy of hazardous emissions measurements. While stack composition measurements are assessed daily via comparison to a