Laminar Smoke Points of Wax Candles

被引:24
作者
Allan, Kathryn M. [1 ]
Kaminski, John R. [1 ]
Bertrand, Jerry C. [2 ]
Head, Jeb [3 ]
Sunderland, Peter B. [1 ]
机构
[1] Univ Maryland, Dept Fire Protect Engn, College Pk, MD 20742 USA
[2] CW Grp, Menlo Pk, CA USA
[3] Atkins & Pearce Inc, Covington, KY USA
关键词
Combustion; Diffusion flames; Laminar flames; Soot; Wicks; JET DIFFUSION FLAMES; SOOT FORMATION; MOLECULAR-STRUCTURE; FUEL; TENDENCY; MODEL; COMBUSTION; SIMULATION; ADDITIVES; BEHAVIOR;
D O I
10.1080/00102200902935512
中图分类号
O414.1 [热力学];
学科分类号
070201 [理论物理];
摘要
An experimental investigation of laminar smoke points of candle flames is presented. Adjustable wicks with diameters of 1.7-7.3mm were used to measure smoke points in quiescent air for 14 different waxes. The measured smoke points increased with wick diameter. Smoke points interpolated to a wick diameter of 4.5mm varied from 41-80mm and increased from commercial waxes (candelilla, carnauba, beeswax, paraffin) to normal alkanes (hexatriacontane, octacosane, tetracosane) to primary alcohols (octadecanol, docosanol, hexadecanol) to carboxylic acids (stearic, palmitic, lauric, myristic). Wax smoke points decreased with increasing carbon number. Alkane and alcohol smoke points decreased with increasing fuel C/H ratio and correlated with past measurements of liquid fuels and polymers. Soot emission was not possible for any fuel when wick diameter was below 1.7mm or when wick length was below 5.9mm.
引用
收藏
页码:800 / 811
页数:12
相关论文
共 39 条
[1]
Model fuels to reproduce the sooting behaviour of aviation kerosene [J].
Aksit, IM ;
Moss, JB .
FUEL, 2005, 84 (2-3) :239-245
[2]
Modeling gravity effect on diffusion flames stabilized around a cylindrical wick saturated with liquid fuel [J].
Alsairafi, A ;
Lee, ST ;
T'ien, JS .
COMBUSTION SCIENCE AND TECHNOLOGY, 2004, 176 (12) :2165-2191
[3]
*ASTM, 2003, D1655 ASTM, P614
[4]
*ASTM, 2002, D1322 ASTM, P527
[5]
Measurement of smoke point in velocity-matched coflow laminar diffusion flames with pure fuels at elevated pressures [J].
Berry, T. L. ;
Roberts, W. L. .
COMBUSTION AND FLAME, 2006, 145 (03) :571-578
[6]
EFFECT OF MOLECULAR-STRUCTURE ON INCIPIENT SOOT FORMATION [J].
CALCOTE, HF ;
MANOS, DM .
COMBUSTION AND FLAME, 1983, 49 (1-3) :289-304
[7]
DERIS J, 1994, FIR SAF SCI P 4 INT, P301
[8]
Candle flames in non-buoyant atmospheres [J].
Dietrich, DL ;
Ross, HD ;
Shu, Y ;
Chang, P ;
T'ien, JS .
COMBUSTION SCIENCE AND TECHNOLOGY, 2000, 156 (156) :1-24
[9]
Characterization of fine particle emissions from burning church candles [J].
Fine, PM ;
Cass, GR ;
Simoneit, BRT .
ENVIRONMENTAL SCIENCE & TECHNOLOGY, 1999, 33 (14) :2352-2362
[10]
Glassman I., 1988, P COMBUST INST, V22, P295, DOI 10.1016/S0082-0784(89)80036-0