Burning rate and flame heat flux for PMMA in a cone calorimeter

被引：129

作者：

Rhodes, BT ^{[1
]}

Quintiere, JG ^{[1
]}

机构：

[1] UNIV MARYLAND,DEPT FIRE PROTECT ENGN,COLLEGE PK,MD 20742

来源：

FIRE SAFETY JOURNAL | 1996年 / 26卷 / 03期

关键词：

D O I：

10.1016/S0379-7112(96)00025-2

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Ignition and burning rate data are developed for thick (25 mm) black Polycast PMMA in a cone calorimeter heating assembly. The objective is to establish a testing protocol that will lead to the prediction of ignition and burning rate from cone data. This is done for a thermoplastic like PMMA. The incident flame heat flux, for irradiation levels of 0-75 kW/m(2), is found to be approximately 37 kW/m(2) for black PMMA. Its constancy is shown die to the geometry of the cone flame. Also, this flame is shown to be nearly transparent for cone irradiance (>90%). The heat of gasification of the black PMMA used is found to be approximately 2.8 kJ/g; higher than values reported for other PMMA samples. This is believed to be due to differences in molecular structure or pigmentation of the PMMA tested. A burning rate model is demonstrated to yield good accuracy in comparison to measured transient values. An exact solution is found for constant heat flux conditions. Copyright (C) 1996 Elsevier Science Ltd.

引用

页码：221 / 240

页数：20

共 24 条

[1]

AGRAWAL S, 1992, 24 INT S COMB COMB I

[2]

*AM SOC TEST MAT, E1354 ASTM AM SOC TE

[3] MATERIAL PYROLYSIS PROPERTIES .1. AN INTEGRAL MODEL FOR ONE-DIMENSIONAL TRANSIENT PYROLYSIS OF CHARRING AND NON-CHARRING MATERIALS [J].

CHEN, Y ;

DELICHATSIOS, MA ;

MOTEVALLI, V .

COMBUSTION SCIENCE AND TECHNOLOGY, 1993, 88 (5-6) :309-328

[4]

Cox G., 1991, P 3 INT S FIR SAF SC

[5]

DELICHATSIOS MM, 1990, UPWARD FIRE SPREAD C

[6]

DERIS J, 1978, 17 INT S COMB COMB I

[7]

Holman J. P., 1990, HEAT TRANSFER

[8]

Howell J.R., 1981, THERMAL RAD HEAT TRA

[9]

IQBAL N, 1993, BURNING RATE MODEL T

[10]

JACKSON JL, 1986, 883809 NISTIR NAT I

← 1 2 3 →