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Effect of longwall face advance rate on spontaneous heating process in the gob area - CFD modelling
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SYSNO ASEP 0368933 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Effect of longwall face advance rate on spontaneous heating process in the gob area - CFD modelling Author(s) Taraba, B. (CZ)
Michalec, Zdeněk (UGN-S)Number of authors 2 Source Title Fuel. - : Elsevier - ISSN 0016-2361
Roč. 90, č. 8 (2011), s. 2790-2797Number of pages 8 s. Publication form www - www Language eng - English Country GB - United Kingdom Keywords coal oxidation ; spontaneous heating ; CFD modelling ; Fluent Subject RIV DH - Mining, incl. Coal Mining R&D Projects GA105/06/0630 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z30860518 - UGN-S (2005-2011) UT WOS 000290899500031 DOI 10.1016/j.fuel.2011.03.033 Annotation A commercial CFD software programme, FLUENT, was used to study the oxidation process of coal in the mined-out longwall (gob) area. A three-dimensional, single-phase model with a continuously advancing longwall face has been developed. For the model, the gob longwall area was designed on the basis of the actual longwall panel operating in the Ostrava-Karviná Coal Mines (OKD, Czech Republic). The behaviour of the coal to oxygen was modelled using the results arising mainly from the former laboratory-scale experiments with Czech bituminous coals. Basically, the technique of pulse flow calorimetry and measurements at a continuous airflow reactor were applied during the laboratory investigations. In the contribution, the main focus was to understand the effect of the longwall face advancing speed on the oxidation heat production as well as evolution of the gases in the gob area. Simultaneously, the effect of coal crushing in the mined-out area on the spontaneous heating process was examined. Workplace Institute of Geonics Contact Lucie Gurková, lucie.gurkova@ugn.cas.cz, Tel.: 596 979 354 Year of Publishing 2012 Electronic address http://www.sciencedirect.com/science/article/pii/S0016236111001724
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