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Novel Approach to Estimate the Optimum Zone Fuel Mass Flow Rates for a Walking Beam Type Reheating Furnace

机译：步进梁式加热炉最佳区域燃料质量流量估算的新方法

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摘要

Three-dimensional numerical simulation is performed to predict the heat transfer performance in a walking-beam reheating furnace. The furnace uses a mixture of coke oven gas as a heat source to reheat the slabs. The fuel is injected into the furnace at four zones: preheating zone, first heating zone, second heating zone, and soaking zone. This numerical model considers turbulent reactive flow coupled with radiative heat transfer in the furnace; meanwhile, the conductive heat transfer dominates the energy balance inside the slabs. An initial iterative method is proposed to estimate the fuel mass flow rate at each zone of the reheating furnace, while the required heating curve of the slabs is specified. In addition, a simplified two-dimensional numerical model is performed to estimate the fuel mass flow rate for the consideration of computational time consummation. The results of the two-dimensional numerical simulations are compared with those of three-dimensional numerical simulation and the in situ data. Furthermore, velocity and temperature distributions are examined for two cases under different heating curves of the slabs.
机译：进行了三维数值模拟，以预测步进梁式加热炉的传热性能。该炉使用焦炉煤气的混合物作为热源来重新加热板坯。燃料在四个区域（预热区域，第一加热区域，第二加热区域和均热区域）注入炉中。该数值模型考虑了炉内的湍流反应流和辐射传热。同时，热传导控制着板坯内部的能量平衡。提出了一种初始迭代方法来估算再热炉每个区域的燃料质量流量，同时指定了所需的板坯加热曲线。另外，考虑到计算时间的消耗，执行简化的二维数值模型来估计燃料质量流量。将二维数值模拟的结果与三维数值模拟的结果和原位数据进行比较。此外，研究了两种情况下板坯加热曲线不同时的速度和温度分布。

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  • 来源
    《Heat Transfer Engineering》 |2018年第8期|586-597|共12页
  • 作者

    Chien-Nan Lin; Yi-Ping Luo; Jiin-Yuh Jang; Chao-Hua Wang;

  • 作者单位

    Department of Mechanical Engineering, Far East University, Tainan, Taiwan;

    Department of Mechanical Engineering, National Cheng-Kung University, Tainan, Taiwan;

    Department of Mechanical Engineering, National Cheng-Kung University, Tainan, Taiwan;

    China Steel Corporation, Kaohsiung, Taiwan;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
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