Effect of local rearrangements in the particle bed on the stability of filtration combustion of solid fuel

被引：20
|
作者：
Glazov, Sergey V. [1 ]
Kislov, Vladimir M. [1 ]
Salgansky, Eugene A. [1 ]
Rabinovich, Oscar S. [2 ]
Malinouski, Andrei I. [2 ]
Salganskaya, Marina V. [1 ]
Pilipenko, Ekaterina N. [1 ]
Kolesnikova, Yulia Yu. [1 ]
机构：
[1] Russian Acad Sci, Inst Problems Chem Phys, Academician Semenov Ave 1, Chernogolovka 142432, Moscow Region, Russia
[2] Natl Acad Sci Belarus, State Sci Inst, AV Luikov Heat & Mass Transfer Inst, P Brovka Str 15, Minsk 220072, BELARUS
来源：
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2017年 / 108卷
基金：
俄罗斯基础研究基金会;
关键词：
Filtration combustion; Packed bed; Instability; Permeability; Fluidization; INSTABILITY; WAVE;
D O I：
10.1016/j.ijheatmasstransfer.2016.12.097
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The effect of local rearrangements in the particles bed during filtration combustion is studied experimentally and numerically. It is shown that for upward gas filtration and propagation of combustion front, there exists a stabilizing mechanism. It is due to filling of caverns formed as the result of burning-out of solid fuel by the fuel mixture from overlying layers. This mechanism prevents deformations and decay of the combustion front. The stabilization effect has a threshold for the gas flow rate that corresponds to the minimal fluidization gas velocity in combustion zone. In case of downward gas flow and combustion front propagation, this stabilizing mechanism does not occur. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1602 / 1609
页数：8
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