MULTI-OBJECTIVE OPERATION METHOD FOR COAL MINE INTEGRATED ENERGY SYSTEMS CONSIDERING EXERGY ANALYSIS

Song Yikai; Shen Weijie; Zeng Bo; Wang Yuan; Gong Dunwei; Wang Shuai

doi:10.19912/j.0254-0096.tynxb.2024-0722

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Acta Energiae Solaris Sinica ›› 2025, Vol. 46 ›› Issue (9) : 650-660. DOI: 10.19912/j.0254-0096.tynxb.2024-0722

MULTI-OBJECTIVE OPERATION METHOD FOR COAL MINE INTEGRATED ENERGY SYSTEMS CONSIDERING EXERGY ANALYSIS

Song Yikai¹, Shen Weijie², Zeng Bo¹, Wang Yuan¹, Gong Dunwei³, Wang Shuai⁴

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Abstract

This article first constructs the basic framework of mine integrated energy system（MIES）, which includes foundational models for utilizing mine-derived energy resources such as mine water, exhaust air, and methane. Subsequently, an exergy analysis coupling material flows with exergy flows is conducted for both the supply and demand sides of the system. Energy quality coefficients are utilized to quantify the quality differences among various types of energy, including mine-derived energies within MIES, achieving high-quality and cascading utilization of system energy. Then, a multi-objective optimization operation model is constructed with objectives of exergy efficiency and economic feasibility, considering constraints related to equipment characteristics and energy balance. The NSGA-Ⅱ algorithm is used to solve the model. Finally, a case study from a mining area in Taiyuan, Shanxi, is selected to validate the proposed method, proving the effectiveness of the optimization model.

Key words

mine integrated energy system / exergy efficiency analysis / mine-derived energy / multi-objective optimization / flexible load

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Song Yikai, Shen Weijie, Zeng Bo, Wang Yuan, Gong Dunwei, Wang Shuai. MULTI-OBJECTIVE OPERATION METHOD FOR COAL MINE INTEGRATED ENERGY SYSTEMS CONSIDERING EXERGY ANALYSIS[J]. Acta Energiae Solaris Sinica. 2025, 46(9): 650-660 https://doi.org/10.19912/j.0254-0096.tynxb.2024-0722

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