Coke drums are critical equipment in the petroleum industry. The failure modes of coke drums include excessive bulging deformation and fatigue cracking. The elastic-plastic behavior of a coke drum, subjected to both thermal and mechanical loadings, is analyzed for a complete cycle of operation. The effects of multiple operational cycles and localized hot/cold spots are also investigated. It is found that yielding of the clad layer starts at the very early stage in an operating cycle and permanent deformation is caused in the first operating cycle. Plastic shakedown occurs in the clad layer under combined operating thermal and mechanical loadings. It is also found that both hot and cold spots will cause bulging of the shell and the cold spot can cause more severe deformation than the hot spot.
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December 2011
Research Papers
Global and Local Elastic-Plastic Stress Analysis of Coke Drum Under Thermal-Mechanical Loadings
Feng Ju,
Feng Ju
Department of Mechanical Engineering,
University of Alberta
, Edmonton, AB T6G 2G8, Canada
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John Aumuller,
John Aumuller
Department of Mechanical Engineering,
University of Alberta
, Edmonton, AB T6G 2G8, Canada
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Zihui Xia,
Zihui Xia
Department of Mechanical Engineering,
University of Alberta
, Edmonton, AB T6G 2G8, Canada
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Pierre Du Plessis
Pierre Du Plessis
Suncor Energy Services Inc.
, 855 Memorial Drive, Fort McMurray, AB T9H 0A8, Canada
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Feng Ju
Department of Mechanical Engineering,
University of Alberta
, Edmonton, AB T6G 2G8, Canada
John Aumuller
Department of Mechanical Engineering,
University of Alberta
, Edmonton, AB T6G 2G8, Canada
Zihui Xia
Department of Mechanical Engineering,
University of Alberta
, Edmonton, AB T6G 2G8, Canada
Pierre Du Plessis
Suncor Energy Services Inc.
, 855 Memorial Drive, Fort McMurray, AB T9H 0A8, Canada
J. Pressure Vessel Technol. Dec 2011, 133(6): 061202 (10 pages)
Published Online: October 3, 2011
Article history
Received:
April 13, 2010
Revised:
October 12, 2010
Online:
October 3, 2011
Published:
October 3, 2011
Citation
Ju, F., Aumuller, J., Xia, Z., and Du Plessis, P. (October 3, 2011). "Global and Local Elastic-Plastic Stress Analysis of Coke Drum Under Thermal-Mechanical Loadings." ASME. J. Pressure Vessel Technol. December 2011; 133(6): 061202. https://doi.org/10.1115/1.4002802
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