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Friday, July 24, 2020 | History

2 edition of Towards wind-aided flame spread along a horizontal charring slab found in the catalog.

Towards wind-aided flame spread along a horizontal charring slab

George F Carrier

Towards wind-aided flame spread along a horizontal charring slab

the steady flow problem

by George F Carrier

  • 277 Want to read
  • 33 Currently reading

Published by U.S. Department of Commerce, National Bureau of Standards in Washington, D.C .
Written in English

    Subjects:
  • Flame spread

  • Edition Notes

    Statementby George Carrier, Francis Fendell, and Stanton Fink for Center for Fire Research, National Bureau of Standards
    SeriesNBS-GCR -- 82-377
    ContributionsFendell, Francis E, Fink, Stanton, Center for Fire Research (U.S.)
    The Physical Object
    Pagination81 p. :
    Number of Pages81
    ID Numbers
    Open LibraryOL14847998M

    One of the key factors in the case of the fire hazard of assembly materials is the potential for rapid wind-aided flame spread over the surface. For this reason, reaction-to-fire requirements for building materials in U.S. building codes are primarily based on performance in a wind-aided flame spread test. WIND EFFECTS ON MONOSLOPED AND SAWTOOTH ROOFS A Dissertation Presented to the Graduate School of Clemson University In Partial Fulfillment of the Requirements for the Degree Doctor of Philosophy Civil Engineering by Bo Cui August Accepted by: Dr. David O. Prevatt, Committee Chair Dr. Timothy A. Reinhold Dr. Peter R. Sparks Dr. Hsein Juang.

    Start studying Practice Questions - Final - Science. Learn vocabulary, terms, and more with flashcards, games, and other study tools. The intersection between the slab and column of slab & column frames is a region of high stress and is usually reinforced by additional material in the form of a capital or drop panel. Concrete slabs, wood decks, and metal decks can be used to support floor loads.

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Towards wind-aided flame spread along a horizontal charring slab by George F Carrier Download PDF EPUB FB2

Towards Wind-Aided Flame Spread Along A Horizontal Charring Slab: The Steady-Flow Problem. Final Report. Published. February 1, Author(s) G Carrier, F Fendell, S Fink. Citation-Pub Type. NIST Pubs. Buildings and Construction and Fire.

Created February 1,Updated Febru Author: G Carrier, F Fendell, S Fink. Towards wind-aided flame spread along a horizontal charring slab: the steady flow problem Author: George F Carrier ; Francis E Fendell ; Stanton Fink ; Center for Fire Research (U.S.).

The spread of fire across the ceiling of a large room (or long corridor) in a structure is modeled as wind-aided flame spread along a horizontal char-forming thick slab, in the presence of significant convective, diffusive, and radiative : George Carrier, Francis Fendell, Stanton Fink.

Towards Wind-Aided Flame Spread Along a Horizontal Charring Slab: The Steady-Flow Problem. Carrier G, Fendell F, Fink S () Towards wind-aided flame spread along a horizontal charring slab: the steady – flow problem. Combust Sci Technol – CrossRef Google Scholar De Ris JN () Spread of a laminar diffusion : Roza Aseeva, Boris Serkov, Andrey Sivenkov.

The spread of fire across the ceiling of a large room (or long corridor) is modeled as wind-aided flame spread along a horizontal char-forming thick slab, in the presence of.

Therefore, studying the combustion and flame spread mechanism of a single pine needle (SPN), which is one of the most combustible components of forest fuel, will help in understanding the mechanism of flame spread over thin charring solid fuels and ground fire by: 2.

NUMERICAL SIMULATION OF WIND-AIDED FLAME SPREAD OVER HORIZONTAL SURFACE OF CONDENSED FUEL IN A CONFINED CHANNEL H.Y. Wang and B. Chateil Laboratoire de Combustion et de Détonique, C.N.R. UPR - E.N.S.M.A., Université de Poitiers BP - Site du Futuroscope,Futuroscope Cedex, France (Received 26.

A new experimental apparatus for measuring flame spread rates at different ambient temperatures is presented. The 2 m long sample is pre-heated with air. Skatter, S. and Kučera, B. Spiral grain—An adaptation of trees to withstand stem breakage caused by wind-induced als Roh- und Werkstoff, Vol.

55, Issue. p. The spread of fire across the ceiling of a large room (or long corridor) is modeled as wind-aided flame spread along a horizontal char-forming thick slab, in the presence of Author: Arvind Atreya.

Horizontal Spread at the Base From Quintiere et al. [5], downward and lat- eral flame spread rate, Up, on a vertical fiat wall can be expressed as Up = ~/(kpc)(Tig - Ts)2, where ignition temperature Tig =surface temperature Ts = 20, effective ther- mal inertia kpc = (kW/m2K)2s, and flame heat transfer parameter ~b = (kW)2/m3 for Cited by: This paper presents a theoretical description of a diffusion flame spreading against the wind on a semiinfinite charring solid.

It extends the previous flame spread models on “vaporizing” solids to charring materials like wood and provides a realistic description of the gas by: The effective flame heated length scale l h, for opposed flow flame spread depends in a complex way on radiative and convective heat transfer through the gas phase and conduction through the solid phase which include the effective ignition or preheat zone Δ f, ahead of the flame front, as depicted in Fig.

latter distances are of small magnitude, e.g. Cited by: 9. The spread of fire across the ceiling of a large room (or long corridor) is modeled as wind-aided flame spread along a horizontal char-forming thick slab.

material properties, perhaps with the inclusion of S. of linearisation of flame length interpreting experiments because the term characteristic charactistic may not be so important as might at external pre-heating condition). limited spread will involve the conditions of ignition, the support given by the burner and the abandonment of the state approximation.

initial in ie finite rise Cited by: Shareable Link. Use the link below to share a full-text version of this article with your friends and colleagues. Learn more. Two experimental scenarios have been considered. In the first one, ignition of and the flame spread over the continuous combustible surface of 5 m height PMMA slab is investigated numerically by means of FDS (using both thermal and finite-rate pyrolysis model) and theoretically (using the analytical model).Author: Ekaterina Markus, Alexander Snegirev, Egor Kuznetsov, Leonid Tanklevskiy.

Flame spread rate and fuel spread rate plotted vs. fuel coverage for the 4-cm PMMA, 8-cm PMMA, and homogeneous arrays. Given a uniform distribution of discrete fuels, knowledge of either the flame spread rate or the fuel spread rate also allows us to estimate the other. type of flame spread are: lateral or downward flame propagation on a vertical wooden slab or opposed-flow flame propagation on the top or underside of a horizontal wood slab.

In the model problem, the slab is assumed to be semi-infinite (a reasonable approximation for wood slabs > 1" thick) and the diffusion flame is assumed to extend to infinityAuthor: A A. Atreya, Howard R. Baum. Wind erodes from the upwind side of an obstacle such as a ridge and it deposits on the downwind side, and wind can deposit snow ten times more rapidly than snow falling from the sky.

Wind deposits snow most commonly on the leeward side of upper elevation prominent terrain features such as ridges, peaks and passes.External fire spread: new research In a two-part feature, BRE Global reports on the latest findings to come out of its the recommendations for 3 ft vertical separation or 2 ft horizontal separation between windows in adjacent passing through the concrete floor slab on each floor.

4 There was no evidence of any fire stopping, proprietary File Size: KB.ignition and flame spread. Thus, the objective of this work is to experi­ mentally investigate the effect of sample orientation on piloted ignition and opposed-wind flame spread mechanisms. Horizontal and vertical sample orientations were examined for two kinds of wood (red oak and mahogany) under different levels of externally supplied radiation.