Inspectioneering

Dr. Donald H. Timbres: About the Author
D. & E. Consulting, Inc.

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Published Articles

Abnormal Cracks Led to Premature Decommissioning of  Boiler Feed Water Exchanger – What Happened and Why?
September/October 2014 Inspectioneering Journal
By Ana Benz at IRISNDT, Dr. Donald H. Timbres at D. & E. Consulting, Inc. , and Matt Stroh

A small leak from top tubesheet-to-tube welds prompted further inspection of the 1¼Cr- ½Mo Ammonia Converter Boiler Feed Water (BFW) Exchanger during a planned shutdown. Further cracks were identified in the top channel to tubesheet butt weld that operated at 700 °F.


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