吹き出し局部通気を行う作業場における熱環境の予測 : 掘進箇所(局部通気を行う鉱山の作業場)における熱環境制御に関する研究(第2報) Prediction of CIimatic Conditions in Developing Roadway with Forcing Auxiliary Ventilation System : Control of thermal environmental conditions in locally ventilated working place (2nd Report)

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著者

    • 高 建良 GAO Jianling
    • 九州大学大学院工学府地球資源システム工学専攻 Department of Earth Resources Engineering, Kyushu University
    • 内野 健一 UCHINO Kenichi
    • 九州大学大学院工学研究院地球資源システム工学専攻 Department of Earth Resources Engineering, Kyushu University

抄録

坑内の熱環境条件,すなわち通気の温度および湿度が十分な精度で予測できることが熱環境制御のため最も重要な基礎となる。本論文ではCFDシミュレーションにより求めた局部熱伝達率を利用し,差分法を用い,局部通気を行う鉱山の作業場における熱環境の変化を予測する計算方法について述べた。岩盤内における三次元熱伝導,壁面における水の蒸発,引立面の進行,風管内の空気と坑道内の気流間の熱交換,および岩盤と坑道気流間の熱交換,風管内から掘進坑道内への漏風をも考慮に入れ,掘進作業場の熱環境を予測するプログラムを開発した。

Finite difference method is applied to simulate the thermal environmental conditions in a developing roadway with forcing auxiliary ventilation. The local heat transfer coefficients which were obtained by simulating the heat and mass transfer process in working face with CFD method are coded into the program for the prediction of the thermal environmental conditions in working face. The 3-demensional heat conduction in surrounding strata rock, the heat and mass transfer between the airflow in the duct and roadway, the heat and mass transfer between wet rock surface and roadway air are simulated with taking into consideration the air leakage of the ventilation duct and the advance of the working face. The distribution of the air temperature and relative humidity of the air both in the duct and roadway, and their variation with time can be predicted by the program when forcing auxiliary ventilation is used. The model for the prediction of the thermal environment can provide a reliable approach to predict if a climate problem exists in the design stage, allowing suitable ameliorative measures to be tested and evaluated prior to the start of driving. It will contribute to establishing the rational method for improvement of the thermal environment, by proposing more effective technological guide in the control of heat problems in working face with auxiliary ventilation.

収録刊行物

  • 資源と素材 : 資源・素材学会誌 : journal of the Mining and Materials Processing Institute of Japan

    資源と素材 : 資源・素材学会誌 : journal of the Mining and Materials Processing Institute of Japan 118(2), 69-74, 2002-02-25

    The Mining and Materials Processing Institute of Japan

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各種コード

  • NII論文ID(NAID)
    10008012237
  • NII書誌ID(NCID)
    AN10062646
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    09161740
  • NDL 記事登録ID
    6083539
  • NDL 雑誌分類
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL 請求記号
    Z17-315
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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