コークス乾留時における主亀裂内輻射伝熱モデルの検討 Estimation of Radiative Heat Transfer Model in the Lump Coke with Crack During Coal Carbonization

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Lump coke size is determined mainly by the growth of macro-crack from the wall side to center in the coke oven chamber, where the carbonization period and the coke quality are determined by the heat and mass transfer. Although the radia-tive heat transfer of porous media within the micro-crack can be included in an effective thermal conductivity, the effect of radiative heat transfer within the macro-crack on temperature and stress distribution in coal/coke layer have to be investigated analytical-ly using the finite element method.<BR>In this study, a rapid heating experiment of the brick with a macro-crack is carried out in the laboratory-scale coke oven to measure the temperature distribution in the brick. The heat transfer model including the radiative heat transfer within the macro-crack is estimated by comparing the calculated result with the experimental one in order to confirm the accuracy of temperature field in our ordinary thermal stress analysis model. As a result, the calculated history of temperature distribution in the sam-ple brick is in good agreement with experiments especially near the macro-crack surface.

収録刊行物

  • 日本エネルギー学会誌 = Journal of the Japan Institute of Energy  

    日本エネルギー学会誌 = Journal of the Japan Institute of Energy 74(3), 154-160, 1995-03-20 

    The Japan Institute of Energy

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各種コード

  • NII論文ID(NAID)
    10002067762
  • NII書誌ID(NCID)
    AN10373883
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    09168753
  • NDL 記事登録ID
    3600518
  • NDL 刊行物分類
    PA58(有機化学・有機化学工業--石油・石炭化学)
  • NDL 雑誌分類
    ZP27(科学技術--化学・化学工業--燃料)
  • NDL 請求記号
    Z17-119
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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