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Search Publications by: Alexander Maranghides (Assoc)

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Displaying 26 - 50 of 65

A Case Study of a Community Affected by the Waldo Fire Event Timeline and Defensive Actions

November 9, 2015
Author(s)
Alexander Maranghides, Derek McNamara, Robert Vihnanek, Joseph Restaino, Carrie Leland
The National Institute of Standards and Technology (NIST) has a suite of research projects addressing risk reduction in Wildland Urban Interface (WUI) communities. This case study is focused on the Mountain Shadows Community (MSC) in Colorado Springs

Ignition of Wood Fencing Assemblies Exposed to Continuous-Wind Driven Firebrand Showers

July 30, 2015
Author(s)
Sayaka Suzuki, Erik L. Johnsson, Alexander Maranghides, Samuel Manzello
A series of experiments were conducted to examine ignition of wood fencing assemblies subjected to continuous, wind-driven firebrand showers. Specifically, Western Red Cedar and Redwood fencing assemblies were exposed to continuous, wind-driven firebrand

Reducing the Risk of Fire in Buildings and Communities

January 1, 2014
Author(s)
Anthony Hamins, Jason D. Averill, Nelson P. Bryner, David Butry, Richard Gann, Rick D. Davis, Daniel M. Madrzykowski, Alexander Maranghides, Jiann C. Yang, Matthew Bundy, Samuel Manzello, Jeffrey W. Gilman, Francine K. Amon, William E. Mell
Fire costs and losses are a significant life safety and economic burden on society comprising about two percent of the United States gross domestic product. This paper presents the results of a roadmap developed by the National Institute of Standards and

A Case Study of a Community Affected by the Witch and Guejito Fires: Report #2 Evaluating the Effects of Hazard Mitigation Actions on Structure Ignitions

June 5, 2013
Author(s)
Alexander Maranghides, Derek McNamara, William Mell, Jason Trook, Blaza Toman
The National Institute of Standards and Technology (NIST) has a suite of research projects addressing risk reduction in Wildland Urban Interface (WUI) communities. The NIST WUI Team was invited by CAL FIRE to collect post incident data from the California

Strategic Roadmap for Fire Risk Reduction in Buildings and Communities

April 18, 2012
Author(s)
Anthony P. Hamins, Jason D. Averill, Richard G. Gann, Nelson P. Bryner, Rick D. Davis, David T. Butry, Alexander Maranghides, Jiann C. Yang, Daniel M. Madrzykowski, Matthew F. Bundy, Samuel L. Manzello, Jeffrey W. Gilman, Francine K. Amon, William E. Mell
The burden of fire on the U.S. economy continues to be large, comprising approximately $280 billion annually, or 2 percent of GDP. Over the last 30 years, civilian fire deaths and injuries have decreased due to the efforts of many people and organizations

Initial Reconnaissance of the 2011 Wildland-Urban Interfaces Fires in Amarillo, Texas

July 27, 2011
Author(s)
Alexander Maranghides, William Mell, Karen Ridenour, Derek McNamara
The National Institute of Standards and Technology (NIST) is working to reduce the risk of fire spread in Wildland-Urban Interface (WUI) communities. An objective of this work is to develop first generation tools for improved risk assessment and risk

The wildland-urban interface fire problem - Current approaches and Research Needs

March 1, 2010
Author(s)
William E. Mell, Samuel L. Manzello, Alexander Maranghides, David T. Butry, Ronald G. Rehm
Wildfires that spread into wildland-urban interface (WUI) communities present significant challenges on a number of fronts. In the United States the WUI accounts for a significant portion of wildland fire suppression and wildland fuel treatment costs

Residential Structure Separation Fire Experiments

August 1, 2008
Author(s)
Alexander Maranghides, Erik L. Johnsson
Building codes often allow structures with window openings and combustible exteriors to be built with as little as 1.8 m (6 ft) of separation between them. In a recent full-scale laboratory experiment at the National Institute of Standards and Technology

On the Development and Characterization of a Firebrand Generator

May 1, 2008
Author(s)
Samuel L. Manzello, John R. Shields, Thomas G. Cleary, Alexander Maranghides, William E. Mell, Jiann C. Yang, Yoshihiko Hayashi, Daisaku Nii, Tsuyoshi Kurita
A unique experimental apparatus has been constructed in order to generate a controlled and repeatable size and mass distribution of glowing firebrands. The present study reports on a series of experiments conducted in order to characterize the performance

On the Development and Characterization of a Firebrand Generator

May 1, 2008
Author(s)
Samuel L. Manzello, John R. Shields, Thomas G. Cleary, Alexander Maranghides, William E. Mell, Yoshihiko Hayashi, Daisaku Nii, Tsuyoshi Kurita
An experimental apparatus has been constructed in order to generate a controlled and repeatable size and mass distribution of glowing firebrands. The present study reports on a series of experiments conducted in order to characterize the performance of

Energy Balance in a Large Compartment Fire

April 1, 2008
Author(s)
Anthony P. Hamins, Erik L. Johnsson, Alexander Maranghides
The National Institute of Standards and Technology (NIST) and the Nuclear Regulatory Commission (NRC) are collaborating to assess and validate fire computer codes for nuclear power plant applications. This evaluation is being conducted through a series of

Experimental Investigation of Firebrands: Generation and Ignition of Fuel Beds

April 1, 2008
Author(s)
Samuel L. Manzello, Thomas G. Cleary, John R. Shields, Alexander Maranghides, William E. Mell, Jiann C. Yang
A series of real scale fire experiments were performed to determine the size and mass distribution of firebrands generated from Douglas Fir (Pseudotsuga menziesii) trees. The results of the real scale fire experiments were used to determine firebrand sizes

Analysis of Inter-laboratory Testing of Non-loadbearing Gypsum/Steel-Stud Wall Assemblies

December 1, 2007
Author(s)
William L. Grosshandler, Samuel L. Manzello, Alexander Maranghides, T Mizukami
This report summarizes the results of a test program conducted in 2006 and 2007 by the North American Fire Testing Laboratories (NAFTL) consortium. Gypsum/steel-stud wall assemblies, nominally rated at 1-h, were tested by six different organizations in

Firebrand Generation From Burning Vegetation

February 20, 2007
Author(s)
Samuel L. Manzello, Alexander Maranghides, William E. Mell
A series of real scale fire experiments were performed to determine the size and mass distribution of firebrands generated from Douglas-Fir (pseudotsuga menziesii) trees. The experiments were performed in the Large Scale Fire Laboratory (LFL) at NIST. The

Firebrand Production From Burning Vegetation

November 30, 2006
Author(s)
Samuel L. Manzello, Alexander Maranghides, William E. Mell, Thomas G. Cleary, Jiann C. Yang
A series of real scale fire experiments were performed to determine the size and mass distribution of firebrands generated from Douglas-Fir (pseudotsuga menziesii) trees. The results of the real scale fire experiments were used to determine firebrand sizes

Free Space Optics Communication System Testing in Smoke and Fire Environments

April 1, 2006
Author(s)
Alexander Maranghides, William E. Mell, William D. Walton, Erik L. Johnsson, Nelson P. Bryner
Free-Space Optics (also known as FSO , or Optical Wireless ) can be used to transmit optical data, voice and video information. These laser-based systems require unobstructed line of sight to properly operate. FSO system performance, signal intensity and

Report of Experimental Results for the International Fire Model Benchmarking and Validation Exercise #3.

December 1, 2005
Author(s)
Anthony P. Hamins, Alexander Maranghides, Erik L. Johnsson, Michelle K. Donnelly, Jiann C. Yang, George W. Mulholland, Robert Anleitner
The Nuclear Regulatory Commission (NRC) and the National Institute of Standards and Technology (NIST) are participating in an International Collaborative Fire Model Project (ICFMP) to assess and validate fire computer codes for nuclear power plant

Experiments and Modeling of Unprotected Structural Steel Elements Exposed to a Fire

September 18, 2005
Author(s)
Anthony P. Hamins, Kevin B. McGrattan, Kuldeep R. Prasad, Alexander Maranghides, Therese P. McAllister
A large-scale fire experiment was conducted to assess the accuracy of a combination of gas and solid-phase models designed to predict the temperatures of structural steel elements exposed to a fire. The experiment involved a 2 MW heptane spray fire in a
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