Zeng Bo, Hu Pinduan, Wang Han, et al. ENERGY EFFICIENCY EVALUATION METHOD OF MINE INTEGRATED ENERGY SYSTEM BASED ON NSBM-DEA[J]. 2025, 46(3): 177-188. DOI: 10.19912/j.0254-0096.tynxb.2023-1845.
ENERGY EFFICIENCY EVALUATION METHOD OF MINE INTEGRATED ENERGY SYSTEM BASED ON NSBM-DEA
Based on an in-depth analysis of the "coal-energy" coupling mechanism between coal production
transportation
and energy flow in MIES
this paper comprehensively considers the diversity of clean energy and derived energy in MIES. Addressing the limitations of traditional energy efficiency assessment methods
which often neglect internal sub-processes and provide unidimensional evaluation results
we propose a new energy efficiency assessment method for MIES based on Network Slacks-Based Measure Data Envelopment Analysis (NSBM-DEA). This method comprehensively accounts for the unique characteristics of MIES
including coal-energy coupling
multi-phase quality
and multi-energy utilization. By quantitatively decomposing the energy efficiency impacts of interrelated sub-processes in MIES
the proposed method enables scientific assessment of overall energy efficiency and identifies weak links. Finally
we conduct multi-scenario computational analyses using an actual energy system from a mine in Shanxi Province as a case study. The simulation results demonstrate the effectiveness of the proposed method.
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