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Optimization study of cooling parameters of the high-temperature working face in underground engineering
Tunnelling and Underground Space Technology ( IF 6.7 ) Pub Date : 2025-01-22 , DOI: 10.1016/j.tust.2025.106420
Song Xin, Yiwen Hu, Shangxiao Liu, Zhen Zhang
Tunnelling and Underground Space Technology ( IF 6.7 ) Pub Date : 2025-01-22 , DOI: 10.1016/j.tust.2025.106420
Song Xin, Yiwen Hu, Shangxiao Liu, Zhen Zhang
To address the escalating thermal risks and suboptimal cooling capacity distribution of centralized refrigeration systems in large-width faces, this study developed a specialized “high-efficiency air cooler for working faces” and introduced an innovative cooperative cooling strategy integrating air coolers, dust suppression water, and emulsion (A-D-E system). Numerical simulations and field measurements were conducted to evaluate the thermal environment under both traditional cooling methods and the A-D-E synergistic approach. The analysis revealed that, for a 250 m-wide mining face, optimal cooling performance was achieved by strategically placing five air coolers along a gradient. Employing the A-D-E system reduced the average face temperature by 8 K and expanded the comfort zone to cover 96 % of the working area. This approach effectively mitigates excessive heat challenges in large-width faces, enhances the utilization of coolant resources in centralized refrigeration units, and provides a forward-looking framework for advancing cooling strategies in deep mining operations.
中文翻译:
地下工程高温工作面冷却参数优化研究
为了解决大宽度工作面集中制冷系统不断升级的热风险和次优的冷却能力分配问题,本研究开发了一种专门的“工作面高效空气冷却器”,并引入了一种集空气冷却器、抑尘水和乳化液于一体的创新合作冷却策略(A-D-E 系统)。进行了数值模拟和现场测量,以评估传统冷却方法和 A-D-E 协同方法下的热环境。分析表明,对于 250 米宽的采矿工作面,通过沿坡度战略性地放置 5 个空气冷却器,实现了最佳冷却性能。采用 A-D-E 系统将平均杆面温度降低了 8 K,并扩大了舒适区,以覆盖 96% 的工作区域。这种方法有效地缓解了大宽度工作面的过热挑战,提高了集中制冷装置中冷却剂资源的利用率,并为推进深部采矿作业中的冷却策略提供了一个前瞻性的框架。
更新日期:2025-01-22
中文翻译:
地下工程高温工作面冷却参数优化研究
为了解决大宽度工作面集中制冷系统不断升级的热风险和次优的冷却能力分配问题,本研究开发了一种专门的“工作面高效空气冷却器”,并引入了一种集空气冷却器、抑尘水和乳化液于一体的创新合作冷却策略(A-D-E 系统)。进行了数值模拟和现场测量,以评估传统冷却方法和 A-D-E 协同方法下的热环境。分析表明,对于 250 米宽的采矿工作面,通过沿坡度战略性地放置 5 个空气冷却器,实现了最佳冷却性能。采用 A-D-E 系统将平均杆面温度降低了 8 K,并扩大了舒适区,以覆盖 96% 的工作区域。这种方法有效地缓解了大宽度工作面的过热挑战,提高了集中制冷装置中冷却剂资源的利用率,并为推进深部采矿作业中的冷却策略提供了一个前瞻性的框架。