Characterization of the radiative exchanges when using a cone calorimeter for the study of the plywood pyrolysis

被引：21
作者：
Boulet, P. [1 ]
Parent, G. [1 ]
Acem, Z. [1 ]
Rogaume, T. [2 ]
Fateh, T. [2 ]
Zaida, J. [2 ]
Richard, F. [2 ]
机构：
[1] Nancy Univ, LEMTA, CNRS, Fac Sci & Technol, F-54506 Vandoeuvre Les Nancy, France
[2] ENSMA, Inst P, UPR CNRS 3346, Dept Fluides, F-86961 Futuroscope, France
来源：
FIRE SAFETY JOURNAL | 2012年 / 51卷
关键词：
Radiative properties; Emission; Absorption; Pyrolysis; Cone calorimeter; ISO; 5660; FLAMMABILITY PROPERTIES; PILOTED IGNITION; INTEGRAL MODEL; WOOD; FIRES;
D O I：
10.1016/j.firesaf.2012.03.003
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Experimentations have been carried out on the emission of an infrared emitter on the one hand, and the absorption of a sample of wood on the other hand, in order to characterize the radiative exchanges during a study of pyrolysis using a cone calorimeter apparatus (ISO 5660 standard). The deviation from standard assumptions of black emission or black absorption has been analyzed. The emission of the cone calorimeter has been observed to be close to the ideal one of a blackbody, with some heterogeneities in the emission pattern, but obviously similar to a black emission at a temperature up to 1273 K, depending on the electric supply. On the contrary, the plywood absorption is more complex, non-grey, with important deviations from the behavior of a black absorber in some wavelengths. Average properties have been computed using Planck's means, still indicating a strong average absorptivity for the present samples of studied plywood, but ranging between 0.74 and 0.95, depending on time and irradiation source. Present observations confirm that such a non-grey absorption of the samples may result in some discrepancies when studying the pyrolysis with various emission sources like the one of Fire Propagation Apparatus or the present cone calorimeter, which could have some consequences in the interpretation of the pyrolysis process. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码：53 / 60
页数：8
相关论文
共 28 条
  • [1] Experimental study in the infrared of the radiative properties of pine needles
    Acem, Z.
    Parent, G.
    Monod, B.
    Jeandel, G.
    Boulet, P.
    [J]. EXPERIMENTAL THERMAL AND FLUID SCIENCE, 2010, 34 (07) : 893 - 899
  • [2] [Anonymous], 5660 ISO 1
  • [3] [Anonymous], SFPE HDB FIRE PROTEC
  • [4] DEVELOPMENT OF THE CONE CALORIMETER - A BENCH-SCALE HEAT RELEASE RATE APPARATUS BASED ON OXYGEN-CONSUMPTION
    BABRAUSKAS, V
    [J]. FIRE AND MATERIALS, 1984, 8 (02) : 81 - 95
  • [5] Babrauskas V., 2003, Ignition Handbook
  • [6] Glowing and flaming autoignition of wood
    Boonmee, N
    Quintiere, JG
    [J]. PROCEEDINGS OF THE COMBUSTION INSTITUTE, 2002, 29 : 289 - 296
  • [7] Spectral emission of flames from laboratory-scale vegetation fires
    Boulet, P.
    Parent, G.
    Collin, A.
    Acem, Z.
    Porterie, B.
    Clerc, J. P.
    Consalvi, J. L.
    Kaiss, A.
    [J]. INTERNATIONAL JOURNAL OF WILDLAND FIRE, 2009, 18 (07) : 875 - 884
  • [8] Determination of the flammability properties of polymeric materials: A novel method
    Carvel, R.
    Steinhaus, T.
    Rein, G.
    Torero, J. L.
    [J]. POLYMER DEGRADATION AND STABILITY, 2011, 96 (03) : 314 - 319
  • [9] DETERMINATION OF THE WAVELENGTH DEPENDENCE OF REFRACTIVE-INDEXES OF FLAME SOOT
    CHANG, H
    CHARALAMPOPOULOS, TT
    [J]. PROCEEDINGS OF THE ROYAL SOCIETY-MATHEMATICAL AND PHYSICAL SCIENCES, 1990, 430 (1880): : 577 - 591
  • [10] Evaluation of optimization schemes and determination of solid fuel properties for CFD fire models using bench-scale pyrolysis tests
    Chaos, Marcos
    Khan, Mohammed M.
    Krishnamoorthy, Niveditha
    de Ris, John L.
    Dorofeev, Sergey B.
    [J]. PROCEEDINGS OF THE COMBUSTION INSTITUTE, 2011, 33 : 2599 - 2606
123