Performance and Cavitation Damage of an Axial-Flow Pump in 1500 deg F (1089 K) Liquid Sodium

Abstract

A low-head-rise axial-flow pump was operated in liquid sodium at temperatures to 1500 degrees F (1089 K) for 558 hr to investigate pump performance and blade cavitation damage in alkali metals. The research rotor had nine insertable blades of three different materials, a blade-tip diffusion factor of 0.40, and a hub-tip-radius ratio of 0. 77. Overall performance was obtained, and a 200-hr cavitation endurance test was conducted in 1500 degrees F (1089 K) sodium at 3450 rpm. Post-test blade inspection indicated that there was slight cavitation damage and that the Ni-Cr-base superalloy (Rene' 41) was more cavitation-damage resistant to high-temperature sodium than either 316 or 318 stainless steel.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1969
Accession Number
ADA380028

Entities

People

  • Carl Weigel
  • Dean C. Reemsnyder
  • Walter S. Cunnan

Organizations

  • National Aeronautics and Space Administration

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Alkali Metals
  • Axial Flow
  • Blade Tips
  • Flow Rate
  • High Temperature
  • Instrumentation
  • Leading Edges
  • Materials
  • Measurement
  • Performance Tests
  • Photographs
  • Pressure Gages
  • Static Pressure
  • Tensile Strength
  • Test Facilities
  • Trailing Edges
  • Transducers

Fields of Study

  • Physics

Readers

  • Aerodynamics.
  • Materials Science and Engineering.
  • Tribology (the study of the boundary interaction between sliding surfaces, lubrication, wear and friction).