THE THERMAL CONDUCTIVITY OF A FLUIDIZED BED

Abstract

Heat transfer within a fluidized bed of solid particles is discussed. The structure of a fluidized bed is similar to that of a turbulent fluid. Motion pictures have shown the random movement of individual particles and circulation flows of entire groups of particles in approximately closed and moving orbits. The average value of these pulsation velocities u could be measured from the oscillations of a large sphere suspended from a spring and immersed in the fluidized bed (turbulence gage). For a bed which is higher than the diameter of the reactor, the main scale of the pulsations is close in order of magnitude to the apparatus radius R. (Author)

Document Details

Document Type
Technical Report
Publication Date
Feb 07, 1962
Accession Number
AD0271835

Entities

People

  • A.k. Bondareva
  • O.m. Todes

Organizations

  • National Air and Space Intelligence Center

Tags

DTIC Thesaurus Topics

  • Beds (Process Engineering)
  • Buildings And Structures
  • Conductivity
  • Diameters
  • Energy Transfer
  • Heat Transfer
  • Motion Pictures
  • Oscillation
  • Particles
  • Physical Properties
  • Thermal Conductivity
  • Turbulence

Fields of Study

  • Chemistry
  • Environmental science

Readers

  • Fluid Dynamics.
  • Materials Science.
  • Thermal Physics or Thermal Science.

Technology Areas

  • Space
  • Space - Hall-Effect Thruster