Radiative heat transfer from products of combustion in building corridor fires

Bromberg, K; Quintere, James G

doi:10.6028/nbs.ir.74-596

Cited by 5 publications

(4 citation statements)

References 4 publications

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“…Samples 10,18 and 19 were chosen since they received detailed study of the effects of pads in the bench tests.…”

Section: Resultsmentioning

confidence: 99%

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A characterization and analysis of NBS corridor fire experiments in order to evaluate the behavior and performance of floor covering materials

Quintiere¹

1975

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“…Samples 10,18 and 19 were chosen since they received detailed study of the effects of pads in the bench tests.…”

Section: Resultsmentioning

confidence: 99%

“…The increase exceeded the calculated value and was probably due to radiation from smoke. A more detailed analysis of radiation from combustion products in these experiments is considered by Bromberg and Quintiere [10] . 4.7.…”

Section: Energy Contribution Of the Floor Covering Materialsmentioning

confidence: 99%

A characterization and analysis of NBS corridor fire experiments in order to evaluate the behavior and performance of floor covering materials

Quintiere¹

1975

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“…For black surfaces, the net flux to the floor can be represented as with the ceiling contribution given as and the gas contribution, with the mean beam length L=1.8D for an infinite slab of combustion products. This simple formulation is revealing, particularly from computations performed by Bromberg and Quintiere (1974) based on actual temperature and composition measurements from corridor fire experiments. The experiments were concerned with the propagation of fire spread over corridor floor materials.…”

Section: Figure 12mentioning

confidence: 98%

Soot and Radiation in Cornbusting Boundary Layers

Beier

1984

Combustion Science and Technology

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A survey of the characteristics and predictions of the different theoretical models of the spread of flames over the surface of a solid combustible in opposed or concurrent oxidizing flows shows that, at present, there is a good understanding of what are the controlling mechanisms of the flame spread process andl of what is the necessary formulation to develop a rigorous analysis of the phenomenon. It also shows, however, that the problem is very complicated and difficult to solve mathematically particularly if an analytical solution is sought, and that this complexity is what has prevented so far the development of an analysis capable of describing accurately the flame spread process under realistic conditions where material properties, finite rate kinetics, turbulence and radiation effects can determine the characteristics of the process. Although some of the analyses presently available are capable of predicting quantitatively or at least qualitatively rates of flame spread under certain limiting conditions, it appears that the development of a rigorous numerical analysis will be necessary to predict accurately the flame spread process under varied material and environmental conditions. INTRODUCTIONThe phenomena of the spread of flames over the surface of a combustible material has received considerable attention during the last few years particularly with regard to the prevention and control of fires. The spread of the flame results from the complex interaction of transport processes in the gas and condensed phases, the vaporization of the fuel and the chemical reaction of the fuel vapors with the gaseous oxidizer. Although much progress has been made primarily through experimental information toward the understanding of the controlling mechanisms of the flame spread process (Fernandez-Pello and Hirano, 1983), the complexity of the problem has so far prevented the development of accurate theoretical models of the process.The formulation of a rigorous mathematical model of the flame spread process would consist of the conservation equations for the reacting gas phase coupled at the interface to the condensed phase conservation equations through the appropriate boundary conditions. This would require the solution of a system of coupled, twodimensional, elliptic, nonlinear partial differential equations that would include variable material properties, appropriated gas phase chemical kinetics and solid phase pyrolysis mechanisms. The solution of this fun problem, even after considerable simplifications, is very difficult. For this reason the analyses developed to date have treated the problem at different levels of complexity. The simpJler models are limited to solid phase energy balances with a priori specified conditions-at the solid-gas interface. More refined models include the analysis of the solid and gas phases, but assume that the rate of the chemical reaction is infinite. The flame spread rate appears in these analyses as an eigenvalue which value is the result sought. These models can be classified as h...

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“…In the late 1970s, following successful research by Bromberg & Quintiere [38] on radiative heat transfer in corridor fires, the U.S. Bureau of Mines began to investigate whether the same theory could be applied to fires in circular ducts. A two-dimensional mathematical model to describe this transient fire propagation in a circular duct was proposed by Edwards et al [39].…”

Section: Transient Flame Propagationmentioning

confidence: 99%

Fires in Ducts: A review of the early research which underpins modern tunnel fire safety engineering

Byrne

Georgieva

Carvel

2018

Tunnelling and Underground Space Technology

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Temperature difference due to stratification (K) ∆ Local gas temperature rise (K) ∆ %&'Average gas temperature rise (K) AbstractMuch of the early research which now underpins tunnel fire safety design was carried out experimentally, using small scale ducts. This paper reviews such experiments, mostly carried out in the 1960s, 1970s, and 1980s, highlighting the assumptions and limitations of the early studies, which may have been forgotten as the equations developed have been applied in practice in the subsequent years. The review covers three primary topics; fire propagation under 'turbulent slug flow' conditions, stratification & flame spread, and backlayering & critical ventilation velocity.

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Radiative heat transfer from products of combustion in building corridor fires

Cited by 5 publications

References 4 publications

A characterization and analysis of NBS corridor fire experiments in order to evaluate the behavior and performance of floor covering materials

A characterization and analysis of NBS corridor fire experiments in order to evaluate the behavior and performance of floor covering materials

Soot and Radiation in Cornbusting Boundary Layers

Fires in Ducts: A review of the early research which underpins modern tunnel fire safety engineering

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