MASS-TRANSFER TESTS WITH TWO-PHASE FLOW

Abstract

A closed loop fabricated entirely from Cb + 1.0 w/o Zr material was operated with potassium under dynamic two-phase (liquid and vapor) conditions. A test section containing orifices and Mo + 0.5 w/o Ti test specimens was placed in the vapor stream. The maximum fluid temperature of 1950 deg F and the maximum vapor temperature of 2000 deg F were maintained throughout the test. Condensing occurred at 1770 deg F. The test was conducted for 307 hours of the scheduled 1,000 hours. The test was terminated due to a twisted ribbon failure in the boiler section, which resulted in a flow restriction. The test was conducted in a purified argon atmosphere and was monitored for impurities during the test. Despite the precautions taken to minimize contamination of the loop material, contamination of the refractory alloy existed. Under the test conditions, there was no evident corrosion and/or erosion of the loop materials.

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Document Details

Document Type
Technical Report
Publication Date
Nov 20, 1964
Accession Number
AD0608565

Entities

People

  • E. A. Kovacevich
  • R. L. Salley

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force
  • Assembly
  • Chemistry
  • Diffusion Pumps
  • Fabrication
  • Heat Balance
  • Heat Energy
  • High Temperature
  • Low Temperature
  • Mass Transfer
  • Material Degradation Processes
  • Materials
  • Materials Processing
  • Materials Science
  • Measurement
  • Molecular Sieves
  • Pumping

Readers

  • Aerospace Test and Evaluation
  • Combustion and Flow Dynamics.
  • Powder metallurgy of Titanium alloys.