THERMAL SCIENCE

International Scientific Journal

Dengke Wang

,

Banghua Yao

,

Yanan Gao

,

Weirui Li

,

Ruihua Lv

EFFECT OF CYCLIC TEMPERATURE IMPACT ON COAL SEAM PERMEABILITY

ABSTRACT
The gas permeability of the coal samples, subjected to cyclic temperature impact under different conditions, was considered in the article. Meanwhile, the change of the coal sample permeability and fractures were analyzed through scanning electron microscopy. The obtained results show that the cyclic temperature impact has largely positive effect on the increase of the coal sample permeability and that new fractures and permeability growth increase with the higher temperature difference.
KEYWORDS
thermal stress, cyclic temperature impact, fracture, coal permeability
PAPER SUBMITTED: 2017-03-15
PAPER REVISED: 2017-04-15
PAPER ACCEPTED: 2017-04-20
PUBLISHED ONLINE: 2017-12-02
DOI REFERENCE: https://doi.org/10.2298/TSCI17S1351W
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2017, VOLUME 21, ISSUE Supplement 1, PAGES [S351 - S357]
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Effect of cyclic temperature impact on coal seam permeability

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence