Investigation of a superheater tube cracking problem

James R. Keiser; Gorti B. Sarma; Kimberly A. Choudhury; François R. Jetté; Richard L. Emerson; Elizabeth F. Walker; Joseph R. Kish; Douglas L. Singbeil

Investigation of a superheater tube cracking problem

James R. Keiser, Gorti B. Sarma, Kimberly A. Choudhury, François R. Jetté, Richard L. Emerson, Elizabeth F. Walker, Joseph R. Kish, Douglas L. Singbeil

Corrosion Science & Technology

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

A study was conducted to determine the cause of superheater tube failures occurring just above the roof penetration in a North American recovery boiler. Several failed tubes and fourteen unfailed tubes were removed from the boiler for examination. A failure analysis was conducted on one of the failed tubes, and the unfailed tubes were destructively examined to determine if cracks were developing in those tubes. The metallurgical examination of the failed tube suggested a mechanical fatigue damage mechanism, and the inspection of the unfailed tubes found several small cracks in four of the fourteen tubes. Strain gauges were installed on two superheater tubes, and these are being used to monitor the motion of the tubes during operation. The strain gauges are providing information on the extent and direction of the superheater platen motion.

Original language	English
Title of host publication	2005 TAPPI Engineering, Pulping, Environmental Conference - Conference Proceedings
State	Published - 2006
Event	2005 TAPPI Engineering, Pulping, Environmental Conference - Philadelphia, PA, United States Duration: Aug 28 2005 → Aug 31 2005

Publication series

Name	2005 TAPPI Engineering, Pulping, Environmental Conference - Conference Proceedings
Volume	2006

Conference

Conference	2005 TAPPI Engineering, Pulping, Environmental Conference
Country/Territory	United States
City	Philadelphia, PA
Period	08/28/05 → 08/31/05

Cite this

@inproceedings{0c747294986247aaa0a9061dadb4b497,

title = "Investigation of a superheater tube cracking problem",

abstract = "A study was conducted to determine the cause of superheater tube failures occurring just above the roof penetration in a North American recovery boiler. Several failed tubes and fourteen unfailed tubes were removed from the boiler for examination. A failure analysis was conducted on one of the failed tubes, and the unfailed tubes were destructively examined to determine if cracks were developing in those tubes. The metallurgical examination of the failed tube suggested a mechanical fatigue damage mechanism, and the inspection of the unfailed tubes found several small cracks in four of the fourteen tubes. Strain gauges were installed on two superheater tubes, and these are being used to monitor the motion of the tubes during operation. The strain gauges are providing information on the extent and direction of the superheater platen motion.",

author = "Keiser, {James R.} and Sarma, {Gorti B.} and Choudhury, {Kimberly A.} and Jett{\'e}, {Fran{\c c}ois R.} and Emerson, {Richard L.} and Walker, {Elizabeth F.} and Kish, {Joseph R.} and Singbeil, {Douglas L.}",

year = "2006",

language = "English",

isbn = "1595100954",

series = "2005 TAPPI Engineering, Pulping, Environmental Conference - Conference Proceedings",

booktitle = "2005 TAPPI Engineering, Pulping, Environmental Conference - Conference Proceedings",

note = "2005 TAPPI Engineering, Pulping, Environmental Conference ; Conference date: 28-08-2005 Through 31-08-2005",

}

Keiser, JR, Sarma, GB, Choudhury, KA, Jetté, FR, Emerson, RL, Walker, EF, Kish, JR & Singbeil, DL 2006, Investigation of a superheater tube cracking problem. in 2005 TAPPI Engineering, Pulping, Environmental Conference - Conference Proceedings. 2005 TAPPI Engineering, Pulping, Environmental Conference - Conference Proceedings, vol. 2006, 2005 TAPPI Engineering, Pulping, Environmental Conference, Philadelphia, PA, United States, 08/28/05.

Investigation of a superheater tube cracking problem. / Keiser, James R.; Sarma, Gorti B.; Choudhury, Kimberly A. et al.
2005 TAPPI Engineering, Pulping, Environmental Conference - Conference Proceedings. 2006. (2005 TAPPI Engineering, Pulping, Environmental Conference - Conference Proceedings; Vol. 2006).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Investigation of a superheater tube cracking problem

AU - Keiser, James R.

AU - Sarma, Gorti B.

AU - Choudhury, Kimberly A.

AU - Jetté, François R.

AU - Emerson, Richard L.

AU - Walker, Elizabeth F.

AU - Kish, Joseph R.

AU - Singbeil, Douglas L.

PY - 2006

Y1 - 2006

N2 - A study was conducted to determine the cause of superheater tube failures occurring just above the roof penetration in a North American recovery boiler. Several failed tubes and fourteen unfailed tubes were removed from the boiler for examination. A failure analysis was conducted on one of the failed tubes, and the unfailed tubes were destructively examined to determine if cracks were developing in those tubes. The metallurgical examination of the failed tube suggested a mechanical fatigue damage mechanism, and the inspection of the unfailed tubes found several small cracks in four of the fourteen tubes. Strain gauges were installed on two superheater tubes, and these are being used to monitor the motion of the tubes during operation. The strain gauges are providing information on the extent and direction of the superheater platen motion.

AB - A study was conducted to determine the cause of superheater tube failures occurring just above the roof penetration in a North American recovery boiler. Several failed tubes and fourteen unfailed tubes were removed from the boiler for examination. A failure analysis was conducted on one of the failed tubes, and the unfailed tubes were destructively examined to determine if cracks were developing in those tubes. The metallurgical examination of the failed tube suggested a mechanical fatigue damage mechanism, and the inspection of the unfailed tubes found several small cracks in four of the fourteen tubes. Strain gauges were installed on two superheater tubes, and these are being used to monitor the motion of the tubes during operation. The strain gauges are providing information on the extent and direction of the superheater platen motion.

UR - http://www.scopus.com/inward/record.url?scp=33845804261&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:33845804261

SN - 1595100954

SN - 9781595100955

T3 - 2005 TAPPI Engineering, Pulping, Environmental Conference - Conference Proceedings

BT - 2005 TAPPI Engineering, Pulping, Environmental Conference - Conference Proceedings

T2 - 2005 TAPPI Engineering, Pulping, Environmental Conference

Y2 - 28 August 2005 through 31 August 2005

ER -

Investigation of a superheater tube cracking problem

Abstract

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Conference

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