Experimental Studies on the Effect of Humidity on Methane Explosion Characteristic in Confined Spaces

DOI

10.2991/iccte-16.2016.223How to use a DOI?

Keywords

humidity; methane explosion; maximum explosion pressure; maximum pressure rise rate; explosion limits

Abstract

The limit of methane explosion and the characteristics of methane explosion pressure under different conditions of humidity ( 15%RH 63%RH 92%RH)are studied by using the test system of 20L explosion characteristics in special environment. It is concluded by the study that when the other conditions remain unchanged, with the raise of environmental humidity, the upper limit of methane explosion becomes smaller but lower limit of it becomes larger. And the range of explosion is lessening. Furthermore, compared with the influence of ignition energy, temperature and pressure on the explosion limits, the humidity has a little effect. Maximum explosion pressure and the pressure rise rate are parabolic distribution taking the optimum explosion concentration as the symmetry axis and under the condition of different humidity, both of them show equal scaling trends within the limit of explosion. The conclusion provides an important theoretical basis for preventing gas explosion accident effectively in mines and utilizing coal-bed methane safely.

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Runzhi Li
AU  - Xiangbao Meng
AU  - Rongjun Si
PY  - 2016/01
DA  - 2016/01
TI  - Experimental Studies on the Effect of Humidity on Methane Explosion Characteristic in Confined Spaces
BT  - Proceedings of the 2016 International Conference on Civil, Transportation and Environment
PB  - Atlantis Press
SP  - 1273
EP  - 1278
SN  - 2352-5401
UR  - https://doi.org/10.2991/iccte-16.2016.223
DO  - 10.2991/iccte-16.2016.223
ID  - Li2016/01
ER  -