Inverse problem solution for estimating gas content and gas diffusion coefficient of coal

被引：9
|
作者：
Nazarova, L. A. [1 ]
Nazarov, L. A. [1 ]
Polevshchikov, G. Ya. [2 ]
Rodin, R. I. [2 ]
机构：
[1] Russian Acad Sci, Siberian Branch, NA Chinakal Inst Min, Novosibirsk 630091, Russia
[2] Russian Acad Sci, Siberian Branch, Inst Coal, Kemerovo 650065, Russia
来源：
JOURNAL OF MINING SCIENCE | 2012年 / 48卷 / 05期
关键词：
Coal; gas content; diffusion coefficient; inverse problem; data interpretation; experiment; FILTRATION; SEAMS;
D O I：
10.1134/S1062739148050024
中图分类号：
TD [矿业工程];
学科分类号：
0819 ;
摘要：
The authors suggest the method of interpreting experimental data on gas pressure in a pressure flask containing a coal specimen, that allows defining gas content and gas diffusion coefficient of coal. The offered method is based on solving an inverse problem for a set of diffusion equations each fitting a certain size within the coal specimen grain-size composition. The numerical experiments have shown that a quantitative estimate of gas content has error not higher than a few per cents, even with input data distortion.
引用
收藏
页码：781 / 788
页数：8
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