AN EVALUATION OF CRYOGENIC VACUUM SYSTEM DESIGN PARAMETERS

Abstract

Concepts drawn from the kinetic theory of gases have been utilized to examine basic phenomena associated with cryopumping and low density flow. Relationships based on conductance have been used to examine the significance and interdependence of basic design parameters such as pressure, mass in-leakage rate, shielding, geometrical considerations, and flow regime. Considerations involved in predicting transition flow regime behavior are also discussed.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1963
Accession Number
AD0480858

Entities

People

  • Charles E. Dougherty

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Air Platforms
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Coefficients
  • Cryopumping
  • Energy
  • Equations
  • Flow Rate
  • Heat Energy
  • Heat Transfer
  • Kinetic Theory
  • Knudsen Number
  • Low Density
  • Mass Flow
  • Mean Free Path
  • Shielding
  • Surface Temperature
  • Transitions
  • Vapor Pressure
  • Viscous Flow

Readers

  • Combustion and Flow Dynamics.
  • Systems Analysis and Design