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An Efficient Mine Ventilation Solution Method Based on Minimum Independent Closed Loops

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  • Deyun Zhong

    (School of Resources and Safety Engineering, Central South University, Changsha 410083, China
    Research Center of Digital Mine, Central South University, Changsha 410083, China)

  • Liguan Wang

    (School of Resources and Safety Engineering, Central South University, Changsha 410083, China
    Research Center of Digital Mine, Central South University, Changsha 410083, China)

  • Jinmiao Wang

    (School of Resources and Safety Engineering, Central South University, Changsha 410083, China
    Research Center of Digital Mine, Central South University, Changsha 410083, China)

  • Mingtao Jia

    (School of Resources and Safety Engineering, Central South University, Changsha 410083, China
    Research Center of Digital Mine, Central South University, Changsha 410083, China)

Abstract

In this paper, according to the analysis of optimum circuits, we present an efficient ventilation network solution based on minimum independent closed loops. Our main contribution is optimizing the circuit dividing strategy to improve the iteration convergence and the efficiency of a single iteration. In contrast to a traditional circuit, a minimum closed loop may contain one or more co-tree branches but fewer high-resistance branches and fan branches. It is helpful in solving the problem of divergence or slow convergence for complex ventilation networks. Moreover, we analyze the dividing rules of closed loops and improve the dividing algorithm of minimum independent closed loops. Compared with the traditional Hardy Cross iteration method, the improved solution method has better iteration convergence and computation efficiency. The experimental results of real-world mine ventilation networks show that the improved solution method converges rapidly within a small number of iterations. We also investigate the influence of network complexity, iterative precision, and initial airflow on the iteration convergence.

Suggested Citation

  • Deyun Zhong & Liguan Wang & Jinmiao Wang & Mingtao Jia, 2020. "An Efficient Mine Ventilation Solution Method Based on Minimum Independent Closed Loops," Energies, MDPI, vol. 13(22), pages 1-16, November.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:22:p:5862-:d:442642
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    References listed on IDEAS

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    1. Enrique I. Acuña & Ian S. Lowndes, 2014. "A Review of Primary Mine Ventilation System Optimization," Interfaces, INFORMS, vol. 44(2), pages 163-175, April.
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    Cited by:

    1. Nikodem Szlązak & Marek Korzec, 2022. "The Solution of the Main Fan Station for Underground Mines Being Decommissioned in Terms of Reducing Energy Consumption by Ventilation," Energies, MDPI, vol. 15(13), pages 1-13, June.

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