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.
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