Investigation of a Roof Tube Failure from a Utility Boiler

Abstract

A recent failure from the roof tube section of No. 3 Boiler at IHDNSWC, Indian Head, MD occurred. Evaluation of the tube failure indicated extremely heavy waterside deposits that had migrated from other areas of the boiler. These deposits led to local overheating and creep rupture on the hot crown of the roof tube. Waterside pitting accentuated the applied tube stresses and decreased the time to rupture. The boiler should be examined for other occurrences of heavy boiler deposits. Affected roof tube sections should either be removed or the boiler chemically or mechanically cleaned.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1999
Accession Number
ADA368220

Entities

People

  • David A. Shifler

Organizations

  • Naval Surface Warfare Center Carderock Division

Tags

DTIC Thesaurus Topics

  • Alloys
  • Boundaries
  • Carbon Steels
  • Copper
  • Copper Nickel Alloys
  • Copper Oxides
  • Ferrites
  • Grain Boundaries
  • Heat Transfer
  • Iron
  • Materials
  • Metals
  • Microstructure
  • Oxidation
  • Particles
  • Surface Warfare
  • Test Methods

Readers

  • Electrical Engineering
  • Energy Conservation and Renewable Energy Engineering.
  • Materials Science and Engineering.