A Study on a Multifunctional Variable-Condition Heat Pump System for Mitigating Heat Stress in Deep Coal Mines and Utilizing Waste Heat

Shuai Liu; Wenqi  Li; Fan Xu; Hao Wang; Meiyuan Yang; Zhenying Zhang

doi:10.54097/9b622p84

Authors

Shuai Liu
Wenqi Li
Fan Xu
Hao Wang
Meiyuan Yang
Zhenying Zhang

DOI:

https://doi.org/10.54097/9b622p84

Keywords:

Mine Waste Heat, Multi-functional Variable-condition Heat Pump System, Co-current Tube-in-tube Heat Exchanger, Spray Heat Exchanger, Energy Conservation and Emissions Reduction, Dual Carbon Strategy

Abstract

Against the backdrop of global climate change and the “dual carbon” strategy, mine waste heat—a low-grade energy source generated during coal mining—presents a key solution to addressing the conflicts between energy waste, environmental pollution, and production safety through its efficient recovery and utilization. Addressing issues such as high ventilation loads and waste of waste heat caused by high-temperature heat hazards in deep mines, existing research has largely focused on single technologies, lacking studies on multi-condition coupled systems. Based on this, this paper proposes a technical framework and engineering implementation path for a multifunctional, variable-condition mine waste heat heat pump system. The paper first analyzes the characteristics of deep-mine heat hazards and waste heat resources to clarify the necessity of system development; it then outlines the overall system architecture and proposes two technical pathways adapted to different exhaust air conditions; subsequently, it compares the core technical mechanisms and performance, and verifies the system’s feasibility through engineering case studies at the Hongliulin Coal Mine and Wanfu Mine; finally, it establishes selection criteria for mine waste heat technologies, forming a comprehensive system solution for multi-condition utilization of mine waste heat, thereby providing a reference for the large-scale and efficient utilization of mine waste heat resources.

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References

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