Physicochemical transformations in coals induced by electric fields

Language: English

Published by LAP LAMBERT Academic Publishing Aug 2019, 2019

3659782564 / 9783659782565

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Seller: BuchWeltWeit Ludwig Meier e.K., Bergisch Gladbach, GermanyBuchWeltWeit Ludwig Meier e.K.

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This item is printed on demand - it takes 3-4 days longer - Neuware -Physicaland chemical changes in the coal exposed to electric fields of weak intensity, the coal after a sudden outburst, and that selected from outburst-prone and non-hazardous zones have been analyzed using X-ray analysis, EPR, thermogravimetric analysis, DSC, laser diffraction analysis of particle sizes, IRspectrometry, NMR, Raman spectroscopy and cross-polarization.Coal organic matter (COM) was shown to be destructed not only by mechanical or thermal effects but also by weak electric fields. Formation and release of large quantities of gas in coal is assumed to be resulted by the transition of unstructured COM into the gas due to active chemical reactions. The proposed concept of outburst initiation considers coal microstructure instability primarily as the result of shear deformations and tectonic activities with COM disintegration under the influence of weak electric fields as a secondary factor. Based on this concept a mathematical model of gas flow in coal with changing porosity and permeability has been developed and tested focusing on forming the overpressure zone in the area of intensive gas release with enhanced porosity and permeability. 64 pp. Englisch.…

Seller Inventory # 9783659782565

Title
Physicochemical transformations in coals induced by electric fields
Author
Valeriy Sobolev
Publisher
LAP LAMBERT Academic Publishing Aug 2019
Publication year
2019
Condition
Neu
Binding
Taschenbuch
Language
English
ISBN 10
3659782564
ISBN 13
9783659782565
Item weight
113 grams
Dimensions
220x150x4 mm

BuchWeltWeit Ludwig Meier e.K.

Bergisch Gladbach, Germany

5-star seller

AbeBooks seller since January 11, 2012

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BuchWeltWeit Ludwig Meier e.K.

Germany