Wind temperature prediction model for ventilation cooling in excavation roadway containing cemented tailings backfill heat sources

IF 6.4 2区工程技术 Q1 THERMODYNAMICS Case Studies in Thermal Engineering Pub Date : 2024-11-09 DOI:10.1016/j.csite.2024.105467

Dingyi Wei , Weijie Cao , Cuifeng Du , Zhun Li , Fan Zhang , Junjie Guo

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Abstract

The application of backfill mining method in deep mines is becoming more and more common, but the accompanied hydration heat of cemented tailings backfill (CTB) exacerbates the thermal damage in the depths. This study establishes and validates the wind temperature prediction model of excavation roadway containing CTB heat sources according to the simulation results and field measurements. The results show that the hydration heat of CTB has an important influence on the wind temperature in excavation roadway, and the use of ventilation to alleviate it is effective. The wind temperature increases gradually with the distance between the measurement point and air duct. The overall mean absolute percentage error (MAPE) between the theoretical calculated values and the simulated values of the established wind temperature prediction model of excavation roadway containing CTB is 0.08 %, which verifies the accuracy and validity of the model. The wind temperature prediction model can be used to guide the development of appropriate ventilation and cooling programs at the site, providing a guarantee for personnel health and safe and efficient mine production.

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含有胶结尾矿回填热源的挖掘巷道通风冷却风温预测模型

回填采矿法在深部矿山的应用越来越普遍，但伴随而来的胶结尾矿回填（CTB）水化热加剧了深部的热害。本研究根据模拟结果和现场测量，建立并验证了含有 CTB 热源的采掘巷道风温预测模型。结果表明，CTB 的水化热对掘进巷道风温有重要影响，采用通风措施可以有效缓解。风温随测量点与风筒之间距离的增加而逐渐升高。所建立的含 CTB 掘进巷道风温预测模型的理论计算值与模拟值之间的总体平均绝对百分比误差（MAPE）为 0.08%，验证了模型的准确性和有效性。风温预测模型可用于指导现场制定适当的通风和降温方案，为人员健康和矿井安全高效生产提供保障。

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来源期刊

Case Studies in Thermal Engineering Chemical Engineering-Fluid Flow and Transfer Processes

CiteScore

8.60

自引率

11.80%

发文量

812

审稿时长

76 days

期刊介绍： Case Studies in Thermal Engineering provides a forum for the rapid publication of short, structured Case Studies in Thermal Engineering and related Short Communications. It provides an essential compendium of case studies for researchers and practitioners in the field of thermal engineering and others who are interested in aspects of thermal engineering cases that could affect other engineering processes. The journal not only publishes new and novel case studies, but also provides a forum for the publication of high quality descriptions of classic thermal engineering problems. The scope of the journal includes case studies of thermal engineering problems in components, devices and systems using existing experimental and numerical techniques in the areas of mechanical, aerospace, chemical, medical, thermal management for electronics, heat exchangers, regeneration, solar thermal energy, thermal storage, building energy conservation, and power generation. Case studies of thermal problems in other areas will also be considered.