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Technical Brief

Reducing the Risk of High Temperature Creep Failures in Refinery Service Component and Equipment

[+] Author and Article Information
Chidambaram Subramanian

Numaligarh Refinery Limited (A Group Company of
Bharat Petroleum Corporation Limited),
Numaligarh 785699, India
e-mail: chidambaramselva@gmail.com

1Corresponding author.

Contributed by the Pressure Vessel and Piping Division of ASME for publication in the JOURNAL OF PRESSURE VESSEL TECHNOLOGY. Manuscript received September 17, 2018; final manuscript received May 14, 2019; published online August 2, 2019. Assoc. Editor: Oreste S. Bursi.

J. Pressure Vessel Technol 141(6), 064501 (Aug 02, 2019) (4 pages) Paper No: PVT-18-1193; doi: 10.1115/1.4043812 History: Received September 17, 2018; Revised May 14, 2019

This paper highlights about the high temperature creep failures affecting refinery materials, structures, and components for which good operational practices, proper maintenance, and inspection are required to avoid major failures and to maintain safety of personnel and integrity of static equipment and to avoid unplanned shut down.

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References

Becker, W. T. , and Shipley, R. J. , eds., 1998, ASM Handbook: Failure Analysis and Prevention (Elevated Temperature Failures), Vol. 11, ASM International, Materials Park, OH.
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Benac, D. J. , and McAndrew, P. , 2012, “ Reducing the Risk of High Temperature Hydrogen Attack (HTHA) Failures,” J. Failure Anal. Prev., 12(6), pp. 624–627. [CrossRef]
Saha, A. , Roy, H. , and Shukla, A. K. , 2010, “ Investigation Into the Probable Cause of Failure of Economizer Tube of a Thermal Power Plant,” J. Failure Anal. Prev., 10(3), pp. 187–190. [CrossRef]
Saha, A. , and Shukla, A. K. , 2014, “ Failure of a Secondary Super Heater Tube in a 140 MW Thermal Power Plant,” J. Failure Anal. Prev., 14(1), pp. 10–12. [CrossRef]
Saha, A. , Roy, H. , and Shukla, A. K. , 2015, “ Failure of a Final Super Heater Tube in a 140 MW Thermal Power Plant,” J. Failure Anal. Prev., 15(2), pp. 184–189. [CrossRef]
Atanu Saha, H. , and Roy, H. , 2017, “ Failure Investigation of a Secondary Super Heater Tube in a 140 MW Thermal Power Plant,” Case Stud. Eng. Failure Anal., 8, pp. 57–60. [CrossRef]
Subramanian, C. , 2019, “ Experimental In-Situ Metallographic Investigations of Industrial Hydrocarbon Processed Fired Heater Tubes,” Metall. Res. Technol., 116(2), p. 203. [CrossRef]

Figures

Grahic Jump Location
Fig. 1

(a) Schematic of typical creep curve showing primary, secondary, and tertiary creep under constant stress test and (b) schematic of creep curve without primary and tertiary creep

Grahic Jump Location
Fig. 2

(a) Shell end cover severely affected by high temperature after long service and (b) corresponding thermography reveals hot spot due to refractory damage at 100% plant load conditions

Grahic Jump Location
Fig. 3

(a) Creep voids observed in shell end cover inner surface (a) at 25× magnifications, (b) at 50× magnification, (c) partial magnified view of Fig. 3(b) at 100× magnification, (d) partial magnified view of (c) at 200× magnification, (e) creep voids observed in shell end cover outer surface at 25× magnification, and (f) unaffected shell end cover surface

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