The TransAlta High-Energy Piping Program—A Five-Year History

[+] Author and Article Information
Marvin J. Cohn

Aptech Engineering Services, Inc., Sunnyvale, CA 94089e-mail: mcohn@aptecheng.com

J. Pressure Vessel Technol 123(1), 65-69 (Oct 23, 2000) (5 pages) doi:10.1115/1.1344236 History: Received January 01, 2000; Revised October 23, 2000
Copyright © 2001 by ASME
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Cohn, M. J., and Paterson, S. R., 1994, “Life Management of High Energy Piping Girth Welds,” Plant Systems/Comnonents Aging Management, ASME PVP-Vol. 283, pp. 79–90.
Cohn, M. J., 1995, “Prediction of Creep Life Exhaustion in High Energy Piping System Girth Welds,” Fitness-for-Service and Decisions for Petroleum and Chemical Equipment, ASME PVP-Vol. 315, pp. 221–228.
Cohn, M. J., and Yee, R. K., 1998, “Creep Relaxation Behavior of High Energy Piping,” Fitness-for-Service Evaluations in Petroleum and Fossil Power Plants, ASME PVP-Vol. 380, pp. 135–150.
Paterson, S. R., 1988, “Determination of Reinspection Intervals for Steam Pipe Weldments Based on Replica Evaluations,” Aptech Engineering Services, Inc. APTECH Memorandum, Dec.
Viswanathan, R., 1993, “Life Assessment of High Temperature Components—Current Concerns and Research in the U.S.,” Life Assessment of Industrial Components and Structures, European Conference, sponsored by ERA Technology, Ltd., September 30–October 1.
Viswanathan,  R., Paterson,  S. R., Grunloh,  H., and Gehl,  S., 1994, “Life Assessment of Superheater and Reheater Tubes in Fossil Boilers,” ASME J. Pressure Vessel Technol., 116, Feb. pp. 1–16.


Grahic Jump Location
Metallurgical replication illustrating well-defined microvoids.
Grahic Jump Location
(a) FE model for the MS piping and SHOH connections; (b) model for the MS piping and turbine connections; (c) FE model detail of the turbine connections
Grahic Jump Location
Crack in drain line-to-pipe connection
Grahic Jump Location
Keephills Unit 2 main steam girth weld crack at the west SHOH connection



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