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Fire

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Displaying 76 - 100 of 7699

FIRE RESILIENCE OF STEEL-CONCRETE COMPOSITE FLOOR SYSTEMS

November 30, 2022
Author(s)
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

Flame spread and combustion dynamics in pine litter under unsteady wind conditions

November 11, 2022
Author(s)
Eric Mueller, Zakary Campbell-Lochrie, Carlos Walker-Ravena, Matt Patterson, Jason Cole, Michael Gallagher, Kenneth Clark, Nicholas Skowronski, Rory Hadden
Understanding flame spread and combustion dynamics in surface fuels is important for both planning and evaluating the impact of prescribed fires. However, prescribed fires tend to be conducted under light and unsteady wind conditions as compared with those

A binary logistic regression model to evaluate backdraft phenomenon

September 30, 2022
Author(s)
Ryan Falkenstein-Smith, Thomas Cleary
A technique to predict backdraft phenomenon using a binary logistic regression model is presented. The model is established from time-averaged temperature, global and local equivalence ratios, and oxygen concentration measurements obtained in a series of

Structure Separation Experiments: Shed Burns without Wind

September 15, 2022
Author(s)
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

Oxygen-Limited Fires Inside Under-Ventilated Enclosures (OLIVE-FIRE)

August 9, 2022
Author(s)
Kevin B. McGrattan, Isaac Leventon
This report documents a series of fire experiments performed within steel electrical enclosures. The objective is to validate a simple empirical model that predicts the maximum heat release rate of a fire within a closed compartment as a function of its

Convective heat transfer in pine forest litter beds

July 5, 2022
Author(s)
Eric Mueller, Michael Gallagher, Nicholas Skowronski, Rory Hadden
To properly parameterize physics-based models of wildland fire behavior, it is necessary to understand the magnitude of convective heat transfer in various scenarios. In order to do so, we isolated the convective heating process in an idealized wildland

Characterization of backdrafts generated from methane fires

March 10, 2022
Author(s)
Ryan Falkenstein-Smith, Christopher U. Brown, Thomas Cleary
An analysis of oxygen concentration measurements is conducted to investigate compartment ventilation before a potential backdraft phenomenon. Experiments are performed in a 2/5th scale compartment of varying configurations such as fuel flow time, spark

WUI Structure/Parcel/Community Fire Hazard Mitigation Methodology

March 1, 2022
Author(s)
Alexander Maranghides, Eric Link, Shonali Nazare, Steven Hawks, Jim McDougald, Stephen Quarles, Daniel Gorham
In the last twenty years, wildland-urban interface (WUI) fires have been growing in severity and size. The structures destroyed by WUI fires have devastated entire communities and have cost billions of dollars while significantly impacting the social