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 two-dimensional 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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Contributed by Ren-huai LIU
Project supported by the National Natural Science Foundation of China (Nos. 10372035 and 10902043) and the Key Laboratory of Diagnosis of Fault in Engineering Structures of Guangdong Province of China
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Ning, Zh., Liu, Rh. Analysis of transient temperature field in coke drums. Appl. Math. Mech.-Engl. Ed. 31, 291–304 (2010). https://doi.org/10.1007/s10483-010-0303-7
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DOI: https://doi.org/10.1007/s10483-010-0303-7