Failure Analysis of a Sodium Heat Pipe with Integral Lithium Fluoride Thermal Energy Storage.

Abstract

A sodium, 321 stainless steel heat pipe with three filled Nb-1Zr tubes for thermal energy storage with 304 S.S. screen for wicking was thermal cycled to failure and then an analysis was performed to examine the failure. It was concluded that insufficient weld depth between an end cap and tube body permitted the propagation of a crack through a possible combination of thermal/corrosion failure, creep rupture of the end cap. A number of possible scenarios for the process following a leak are discussed.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1985
Accession Number
ADA163184

Entities

People

  • Dean L. Jacobson
  • P. Soundararajan

Organizations

  • Arizona State University

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force
  • Air Force Facilities
  • Auger Electrons
  • Classification
  • Creep
  • Energy Storage
  • Engineering
  • Failure Analysis
  • Failure Mode And Effect Analysis
  • Fluorides
  • Grain Boundaries
  • Heat Pipes
  • Hydrogen Embrittlement
  • Material Degradation Processes
  • Materials
  • Materials Laboratories
  • Optical Materials

Readers

  • Electrochemical Engineering/ Fuel Cell Technologies
  • Materials Science
  • Structural Health Monitoring of Composite Structures.