Accession Number : AD0271835

Title :   THE THERMAL CONDUCTIVITY OF A FLUIDIZED BED

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : BONDAREVA,A.K. ; TODES,O.M.

Report Date : 07 FEB 1962

Pagination or Media Count : 1

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)

Descriptors :   *HEAT EXCHANGERS, *THERMAL CONDUCTIVITY, FLUID FLOW, HEAT TRANSFER, LIQUIDS, SOLIDS, TURBULENCE

Distribution Statement : APPROVED FOR PUBLIC RELEASE