An underground air-route temperature prediction model for ultra-deep coal mines
MetadataShow full item record
Due to modern mining methods deployed in recent years, production of coal mines has been expanded significantly compared to thirty years ago. As a consequence, the mining depth of coal mines is becoming ever deeper. A common world-wide problem that underground coal mines are currently experiencing is the hazard caused by the underground hot environment, which also promotes a great need of reliable mitigation measures to assist mine operators controlling the heat stress for miners as well as maintaining the normal operation of the mine. In this paper, a model for underground air-route temperature prediction in ultra-deep mines based on previous findings was developed. In developing this model, the idea of heat balance was used to establish the temperature calculation equation. Various underground heat sources (air compress, wall oxidation, underground heat, machinery, etc.) are covered in the model to improve the prediction accuracy. In addition, a PC-based numerical tool was also developed to aid users using such a mathematical model. Finally, a few temperature measurements for an ultra-deep underground coal mine were performed to demonstrate the applicability of the proposed mathematical prediction model.
Showing items related by title, author, creator and subject.
Using seasonal temperature difference in underground surrounding rocks to cooling ventilation airflow: A conceptual model and simulation studyZhu, Shuai; Cheng, Jianwei; Song, Wanting; Borowski, Marek; Zhang, Yongjun; Yu, Baohai; Wang, Yue; Qi, Chang; Tukkaraja, Purushotham; Hua, Gang; Xu, Yonggang; Ghosh, Apurna ; Wang, Chao; Peng, Yun (2020)With the gradual development of deep mining, heat hazard has become an increasingly prominent problem, which poses a great threat to the coal mine production. In order to reduce the heat hazard effectively, it is necessary ...
Feng, G.; Wu, Y.; Zhang, C.; Hu, S.; Shao, H.; Xu, Guang; Ren, X.; Wang, Z. (2017)© 2017 Elsevier Ltd. Coal spontaneous combustion is a natural hazard during mining. In China, the longwall gob area is the main places that are prone to coal spontaneous combustion due to excessive residual coal in the ...
Yu, B.; Cheng, Jianwei; Yang, S.; Wang, D. (2014)© 2014, Springer Science+Business Media Dordrecht. In order to precisely measure the dilatation energy of the released gas from underground coal seam, this paper initiated a study on the dilatation energy of gas released ...