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http://dx.doi.org/10.7316/KHNES.2017.28.6.721

Numerical Study on Spontaneous Combustion in Coal Stockpile  

HONG, JINPYO (Clean Combustion Group, Clean Power Generation Laboratory)
KIM, JAEKWAN (Clean Combustion Group, Clean Power Generation Laboratory)
CHI, JUNHWA (Clean Combustion Group, Clean Power Generation Laboratory)
PARK, SUKWOON (Clean Combustion Group, Clean Power Generation Laboratory)
SEO, DONGGYUN (Clean Combustion Group, Clean Power Generation Laboratory)
LEE, JINHYANG (Clean Combustion Group, Clean Power Generation Laboratory)
Publication Information
Transactions of the Korean hydrogen and new energy society / v.28, no.6, 2017 , pp. 721-728 More about this Journal
Abstract
In this work, an one-dimensional analysis on spontaneous combustion in a coal stockpile was conducted using a commercial software $gPROMS^{(R)}$ based on assumption suggested by Arioy and Akgun. According to them, it is assumed that there is temperature difference between the surface of coal particle and the gas surrounded around the particle, and it is also assumed that the velocity of the gas is constant and thus oxygen is fed to the stockpile with same velocity. The higher temperature zone is formed to the surface of the coal stockpile at the initial phase and it became deepen as time is taken. Finally it was found that the temperature difference between coal particle and the gas was calculated as $57^{\circ}C$ and spontaneous combustion have not been occurred during 6 months since coal was piled in the stock.
Keywords
Spontaneous combustion; Coal stockpile; Mathematical models; Numerical analysis; Moisture evaporation;
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Times Cited By KSCI : 2  (Citation Analysis)
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