SELF-IGNITION AND CONVECTION PATTERNS IN AN INFINITE COAL LAYER

被引：16

作者：

BRADSHAW, S ^{[1
]}

GLASSER, D ^{[1
]}

BROOKS, K ^{[1
]}

机构：

[1] UNIV WITWATERSRAND,DEPT CHEM ENGN,WITS 2050,SOUTH AFRICA

来源：

CHEMICAL ENGINEERING COMMUNICATIONS | 1991年 / 105卷

关键词：

SPONTANEOUS COMBUSTION; IGNITION; NATURAL CONVECTION; COAL;

D O I：

10.1080/00986449108911530

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Spontaneous combustion can occur in a coal stockpile if the heat generated by oxidation cannot be dissipated at near ambient temperature. Determination of conditions for which combustion occurs is of great importance in designing coal stockpiles. An approximate analysis is used to obtain natural convection patterns in a laterally-unbounded layer of coal. Down-hexagons and two-dimensional rolls appear to be the stable flow planforms. A continuation procedure gives a simple criterion for the point of ignition in the layer in terms of easily measurable parameters. This criterion can be used to determine ignition points in the interior of a large coal stockpile and complements earlier work in which a similar criterion was developed for the edge of a stockpile. © 1991, Taylor & Francis Group, LLC. All rights reserved.

引用

页码：255 / 278

页数：24

共 50 条

[21] Assessment of the Likelihood of Underground Coal Oxidation and Self-Ignition: A Review
S. A. Semenova
Yu. F. Patrakov
A. E. Majorov
Coke and Chemistry, 2020, 63 : 223 - 231
[22] Prediction of coal self-ignition tendency using machine learning
Zhang, Lidong
Song, Zeyang
Wu, Dejian
Luo, Zhenmin
Zhao, Shanshan
Wang, Yaohan
Deng, Jun
FUEL, 2022, 325
[23] New experimental technique for determining coal self-ignition duration
School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049, China
不详
Hsi An Chiao Tung Ta Hsueh, 2006, 9 (1058-1061):
[24] Assessment of the Likelihood of Underground Coal Oxidation and Self-Ignition: A Review
Semenova, S. A.
Patrakov, Yu. F.
Majorov, A. E.
COKE AND CHEMISTRY, 2020, 63 (05) : 223 - 231
[25] New experimental technique to determine coal self-ignition duration
Zhang X.
Xi G.
Frontiers of Energy and Power Engineering in China, 2008, 2 (4): : 479 - 483
[26] ANALYTIC STUDIES OF THE THERMAL CONDITIONS FOR PREVENTION OF SELF-IGNITION OF COAL
BELAVENTSEV, LP
BRYUKHANOV, NI
KAMINSKII, AY
FELZING, VF
SOVIET MINING SCIENCE USSR, 1982, 18 (06): : 533 - 536
[27] CHARACTERISTICS OF THERMAL SELF-IGNITION UNDER CONDITIONS OF NATURAL-CONVECTION
SHTESSEL, EA
PRIBYTKOVA, KV
ZHUKOVA, LA
COMBUSTION EXPLOSION AND SHOCK WAVES, 1979, 15 (05) : 555 - 562
[28] Effect of organic carboxylates in coal on the production of active sites and coal self-ignition behavior
Li J.
Lu W.
Wang Y.
Li J.
Yang Y.
Energy, 2023, 282
[29] Fabrication and characterization of self-ignition coal gangue autoclaved aerated concrete
Cong, X. Y.
Lu, S.
Yao, Y.
Wang, Z.
MATERIALS & DESIGN, 2016, 97 : 155 - 162
[30] PREDICTION OF SELF-IGNITION FIRE PROPAGATION AND COAL LOSS IN AN INCLINED SEAM
Wang, Yanming
Li, Xueqin
Guo, Zhixiong
HEAT TRANSFER RESEARCH, 2018, 49 (09) : 827 - 845

← 1 2 3 4 5 →