Investigation of Microtubular Ceramic Structures

Abstract

Calculations and experiments were conducted to explore the feasibility of producing very compact high-temperature heat exchangers via microtubular ceramic structures. Such microtubular ceramic structures consist of multiple interconnected ceramic tubes with very thin walls, small diameters, and modest ratios of length to diameter. As a result, they should have reasonable strength, as well as very high specific area. The investigation included: calculations of expected volume requirements and heat-exchange performance for microtubular ceramic heat exchangers compared to one of conventional dimensions; experiments seeking to define means for preparing leak-tight microtubular ceramic structures; preliminary exploration of means to provide separate manifolds to the interior and exterior of the microtubes; and a leak test of one experimental manifold microtubular ceramic structure.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1979
Accession Number
ADA072144

Entities

People

  • Robert L. Fullman

Organizations

  • General Electric

Tags

Communities of Interest

  • Advanced Electronics
  • Biomedical
  • Engineered Resilient Systems

DTIC Thesaurus Topics

  • Ceramic Coatings
  • Ceramic Materials
  • Chemistry
  • Fluids
  • Heat Transfer
  • Heat Transfer Coefficients
  • Material Degradation Processes
  • Materials
  • Materials Laboratories
  • Materials Processing
  • Materials Science
  • Measurement
  • Nesosilicates
  • Resins
  • Silicon Carbide
  • Specific Volume
  • Tectosilicates

Readers

  • Combustion and Flow Dynamics.
  • Reinforced Composite Materials