Applied Mathematics and Mechanics (English Edition) ›› 2010, Vol. 31 ›› Issue (3): 291-304.doi: https://doi.org/10.1007/s10483-010-0303-7

• Articles • 上一篇    下一篇

Analysis of transient temperature field in coke drums

宁志华 刘人怀   

  1. 1. Key Laboratory of Disaster Forecast and Control in Engineering, Ministry of Education of China, Jinan University, Guangzhou 510632, P. R. China;
    2. Institute of Applied Mechanics and Department of Mechanics and Civil Engineering, Jinan University, Guangzhou 510632, P. R. China
  • 收稿日期:2009-07-08 修回日期:2010-01-05 出版日期:2010-03-01 发布日期:2009-03-01

Analysis of transient temperature field in coke drums

 NING Zhi-Hua, LIU Ren-Huai   

  1. 1. Key Laboratory of Disaster Forecast and Control in Engineering, Ministry of Education of China, Jinan University, Guangzhou 510632, P. R. China;
    2. Institute of Applied Mechanics and Department of Mechanics and Civil Engineering, Jinan University, Guangzhou 510632, P. R. China
  • Received:2009-07-08 Revised:2010-01-05 Online:2010-03-01 Published:2009-03-01

摘要: One of the primary reasons leading to bulging and cracking in a coke drum is the severe temperature gradient due to cyclic temperature variation. Based on the twodimensional heat conduction theory, an analytical solution of the transient temperature field in the coke drum is obtained, which is different from the known FEM results. The length of the coke drum is considered finite. The dynamic boundary conditions caused by fluid uninterrupted rising in oiling and watering stages are simulated with the iteration method. Numerical results show that the present theoretical model can accurately describe basic features of the transient temperature field in the coke drum. Effects of the geometry of the coke drum and the rising velocity of quench water on the axial temperature gradient are also discussed.

Abstract: One of the primary reasons leading to bulging and cracking in a coke drum is the severe temperature gradient due to cyclic temperature variation. Based on the twodimensional heat conduction theory, an analytical solution of the transient temperature field in the coke drum is obtained, which is different from the known FEM results. The length of the coke drum is considered finite. The dynamic boundary conditions caused by fluid uninterrupted rising in oiling and watering stages are simulated with the iteration method. Numerical results show that the present theoretical model can accurately describe basic features of the transient temperature field in the coke drum. Effects of the geometry of the coke drum and the rising velocity of quench water on the axial temperature gradient are also discussed.

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