Mathematical Modeling of Heat-Exchange Processes in Outdoor Storage of Frozen Coal
- Авторы: Khokholov Y.1, Gavrilov V.2, Fedorov V.1
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Учреждения:
- Chersky Institute of Mining of the North, Siberian Branch
- Chinakal Institute of Mining, Siberian Branch
- Выпуск: Том 55, № 6 (2019)
- Страницы: 1013-1022
- Раздел: Mining Thermophysics
- URL: https://journals.rcsi.science/1062-7391/article/view/184790
- DOI: https://doi.org/10.1134/S1062739119066405
- ID: 184790
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Аннотация
The modeling procedure is developed to describe heat-exchange processes in outdoor summer storage piles of frozen coal produced in winter. This procedure takes into account thermophysical properties of coal and the pile bottom soil, pile structure, climatic factors and the presence of a heat-insulating coating over the pile. In terms of central Yakutia, it is shown that maximum transition of coal from frozen state (piling in January-March) to thawed condition at the pile height more than 5 m will make 25-35% by the end of the warm season (beginning of October). Application of simple and available heat-insulating materials can reduce thawing intensity by up to 2 times. Natural cold weakens the aggravating effect of oxidizing processes on coal quality in long-term storage of coal and its shipment to remote and hard-to-reach places.
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Об авторах
Yu. Khokholov
Chersky Institute of Mining of the North, Siberian Branch
Автор, ответственный за переписку.
Email: khokholov@igds.ysn.ru
Россия, Yakutsk, 677980
V. Gavrilov
Chinakal Institute of Mining, Siberian Branch
Автор, ответственный за переписку.
Email: gvluhorsk@mail.ru
Россия, Novosibirsk, 630091
V. Fedorov
Chersky Institute of Mining of the North, Siberian Branch
Email: gvluhorsk@mail.ru
Россия, Yakutsk, 677980