ANALYSIS OF COOLING METHODS

Abstract

Experimental results have shown that a beam power density of 1667 watts/sq cm can be dissipated in an electrode which consists of a narrow bore tubing, if the tubing is filled with copper mesh to a 20% density and water at a low rate is passed through the tubing. It is shown that this high power density can be dissipated because the mesh surface area is sufficient to drop the power density at the point of transfer to the coolant to a density less than or equal to 135 watts/sq cm. The surface of the mesh is effective due to some combination, yet to be determined, of thermal conductivity of the mesh and vapor transport. An experiment designed to verify the proposed mechanism and determine the contribution of the mesh thermal conductivity is planned for the next phase of the study. The results of this experiment will allow the extrapolation of the results to other electrode geometries.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1968
Accession Number
AD0670922

Entities

People

  • M. H. Zinn

Organizations

  • United States Army Communications-Electronics Command

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Boiling Point
  • Conduction (Heat Transfer)
  • Conductivity
  • Electrodes
  • Electron Beams
  • Electron Tubes
  • Equations
  • Flow
  • Flow Rate
  • Fluid Flow
  • Geometry
  • Heat Energy
  • Heat Of Vaporization
  • Heat Transfer
  • Latent Heat
  • Thermal Conductivity
  • Water Cooling

Fields of Study

  • Physics

Readers

  • Electrical Engineering
  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Plasma Physics.