...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Heat Transfer Engineering >Performance Evaluation of Two Heat Transfer Models of a Walking Beam Type Reheat Furnace
【24h】

Performance Evaluation of Two Heat Transfer Models of a Walking Beam Type Reheat Furnace

机译：步进梁式加热炉的两种传热模型的性能评估

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Two different heat transfer models for predicting the transient heat transfer characteristics of the slabs in a walking beam type reheat furnace are compared in this work. The prediction of heat flux on the slab surface and the temperature distribution inside the slab have been determined by considering thermal radiation in the furnace chamber and transient heat conduction in the slab. Both models have been compared for their accuracy and computational time. The furnace is modeled as an enclosure with a radiatively participating medium. In the first model, the three-dimensional (3D) transient heat conduction equation with a radiative heat flux boundary condition is solved using an in-house code. The radiative heat flux incident on the slab surface required in the boundary condition of the conduction code is calculated using the commercial software FLUENT. The second model uses entirely FLUENT along with a user-defined function, which has been developed to account for the movement of slabs. The results obtained from both models have a maximum temperature difference of 2.25%, whereas the computational time for the first model is 3 h and that for the second model is approximately 100 h.
机译：在这项工作中，比较了两种不同的传热模型，用于预测步进梁式再热炉中板坯的瞬态传热特性。板坯表面的热通量和板坯内部温度分布的预测是通过考虑炉膛内的热辐射和板坯的瞬态热传导来确定的。比较了两个模型的准确性和计算时间。熔炉被建模为带有辐射参与介质的外壳。在第一个模型中，使用内部代码求解具有辐射热通量边界条件的三维（3D）瞬态热传导方程。使用商业软件FLUENT计算在传导代码的边界条件下所需入射到平板表面上的辐射热通量。第二种模型完全使用FLUENT以及用户定义的函数，该函数已开发用于解决平板的运动。从这两个模型获得的结果的最大温差为2.25％，而第一个模型的计算时间为3 h，第二个模型的计算时间约为100 h。

著录项

  • 来源
    《Heat Transfer Engineering》 |2015年第4期|91-101|共11页
  • 作者

    VINOD KUMAR SINGH; PRABAL TALUKDAR; PEDRO J. COELHO;

  • 作者单位

    Department of Mechanical Engineering, Indian Institute of Technology Delhi, New Delhi, India;

    Department of Mechanical Engineering, Indian Institute of Technology Delhi, New Delhi 110016, India;

    Mechanical Engineering Department, Instituto Superior Tecnico, Universidade de Lisboa, Lisboa, Portugal;

  • 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
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号