共 42 条
A thermal environment prediction method for a mine ventilation roadway based on a numerical method: A case study
被引:16
作者:

Xu, Yu
论文数: 0 引用数: 0
h-index: 0
机构:
Cent South Univ, Sch Resources & Safety Engn, Changsha 410083, Peoples R China Cent South Univ, Sch Resources & Safety Engn, Changsha 410083, Peoples R China

Li, Zijun
论文数: 0 引用数: 0
h-index: 0
机构:
Cent South Univ, Sch Resources & Safety Engn, Changsha 410083, Peoples R China Cent South Univ, Sch Resources & Safety Engn, Changsha 410083, Peoples R China

Li, Gang
论文数: 0 引用数: 0
h-index: 0
机构:
State Key Lab Safety & Hlth Met Mines, Maanshan 243000, Peoples R China Cent South Univ, Sch Resources & Safety Engn, Changsha 410083, Peoples R China

Jalilinasrabady, Saeid
论文数: 0 引用数: 0
h-index: 0
机构:
Kyushu Univ, Grad Sch Engn, Dept Earth Resources Engn, Fukuoka 8190395, Japan Cent South Univ, Sch Resources & Safety Engn, Changsha 410083, Peoples R China

Zhai, Xiaowei
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h-index: 0
机构:
Xian Univ Sci & Technol, State Key Lab Green & Low carbon Dev Tar Rich Coal, Xian 710054, Peoples R China Cent South Univ, Sch Resources & Safety Engn, Changsha 410083, Peoples R China

Chen, Yin
论文数: 0 引用数: 0
h-index: 0
机构:
Cent South Univ, Sch Resources & Safety Engn, Changsha 410083, Peoples R China
Xinjiang Kalatongke Min Co LTD, Altay 830000, Peoples R China Cent South Univ, Sch Resources & Safety Engn, Changsha 410083, Peoples R China

Wang, Bing
论文数: 0 引用数: 0
h-index: 0
机构:
Cent South Univ, Sch Resources & Safety Engn, Changsha 410083, Peoples R China Cent South Univ, Sch Resources & Safety Engn, Changsha 410083, Peoples R China
机构:
[1] Cent South Univ, Sch Resources & Safety Engn, Changsha 410083, Peoples R China
[2] State Key Lab Safety & Hlth Met Mines, Maanshan 243000, Peoples R China
[3] Kyushu Univ, Grad Sch Engn, Dept Earth Resources Engn, Fukuoka 8190395, Japan
[4] Xian Univ Sci & Technol, State Key Lab Green & Low carbon Dev Tar Rich Coal, Xian 710054, Peoples R China
[5] Xinjiang Kalatongke Min Co LTD, Altay 830000, Peoples R China
基金:
中国国家自然科学基金;
关键词:
Mine ventilation;
Deep mine;
Heat hazard;
Numerical simulation;
Heat transfer of roadway;
GROUND HEAT-EXCHANGER;
NEURAL-NETWORKS;
PERFORMANCE;
OPTIMIZATION;
PIPE;
D O I:
10.1016/j.csite.2023.102733
中图分类号:
O414.1 [热力学];
学科分类号:
摘要:
Thermal environment prediction has become increasingly significant in recent years with its promise of wide application in underground structures. The current work presents a numerical method for the feasible and effective analysis of the airflow and surrounding rock temperatures in ultralong mine ventilation roadways to understand their dynamic heat transfer. To reduce the modeling effort and computation time with satisfactory accuracy, the ventilation roadway is approximated as a one-dimensional (1D) line element. Still, the surrounding rock of the roadway remains three-dimensional (3D). An equivalent heat transfer coefficient calculates the dynamic heat transfer in the radial direction of the roadway. A case analysis of the Sanhejian coal mine ventilation roadways in China is performed, and a comparison between the simulated results and field measurements indicates that the predicted airflow temperature shows good agreement. The change in the underground thermal environment concerning ventilation time is systematically investigated in detail. The surrounding rock of the roadway adjusts the underground thermal environment through heat absorption or heat release, and the temperature distribution of the surrounding rock presents a "V" shape in winter and a "W" shape in summer. The self-compression of air contributes to a remarkable heat source for the increase in airflow temperature in the air intake shaft. A roadway with a low initial temperature of the surrounding rock after long-term ventilation can effectively cool the high-temperature airflow underground in early summer. The reduction in ventilation volume will increase the cooling degree of airflow by the surrounding rock in long-term ventilation roadways in summer. Still, the airflow will be heated more significantly in short-term ventilation roadways. In addition, the increase in the average annual ambient temperature will result in a linear rise in underground airflow temperature.
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