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Proceedings Paper

Acoustic emission monitoring for inspection of seam-welded hot reheat piping in fossil power plants
Author(s): John M. Rodgers; Bryan C. Morgan; Richard M. Tilley
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Paper Abstract

Although failure of the seam weld on reheat steam piping has been an infrequent occurrence, such failure is still a major safety concern for fossil plant operations. EPRI has provided guidelines for a piping management program base don periodic inspection. More recently, EPRI has also sponsored research to develop inspection techniques to both improve the quality and reduce the cost of piping inspections. Foremost in this research has been the use of acoustic emission (AE) techniques to detect crack damage in seam welds. AE has the substantial cost advantages of both allowing inspection without full removal of the thermal insulation on the reheat piping and making short-re- inspection intervals practical. This paper reviews the EPRI guidelines for performing an AE inspection on seam-welded hot reheat piping.

Paper Details

Date Published: 14 November 1996
PDF: 10 pages
Proc. SPIE 2947, Nondestructive Evaluation of Utilities and Pipelines, (14 November 1996); doi: 10.1117/12.259159
Show Author Affiliations
John M. Rodgers, Acoustic Emission Consulting, Inc. (United States)
Bryan C. Morgan, Duke Engineering and Services (United States)
Richard M. Tilley, Electric Power Research Institute (United States)

Published in SPIE Proceedings Vol. 2947:
Nondestructive Evaluation of Utilities and Pipelines
Martin Prager; Richard M. Tilley, Editor(s)

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