Accession Number : AD0690726

Title :   THE PROPERTIES OF BUBBLES IN FLUIDIZED BEDS OF CONDUCTING PARTICLES AS MEASURED BY AN ELECTRORESISTIVITY PROBE,

Corporate Author : NATIONAL RESEARCH COUNCIL OF CANADA OTTAWA (ONTARIO) DIV OF APPLIED CHEMISTRY

Personal Author(s) : Park,W. H. ; Kang,W. K. ; Capes,C. E. ; Osberg,G. L.

Report Date : 22 NOV 1968

Pagination or Media Count : 16

Abstract : An electroresistivity probe was used to determine point properties of an air-fluidized bed of conducting coke particles. The probe contained two electrodes, one vertically above the other and separated by a known distance. Interruptions of current between the electrodes of the probe and a large wall electrode were analyzed with the aid of a hybrid computer to yield information on bubble properties (frequency, volume fraction, size and size distribution and rising velocity) as a function of fluidization level, particle size and position within the bed. The results are generally in agreement with available theory and literature data. (Author)

Descriptors :   (*COAL, FLUIDIZED BED PROCESSES), PROBES, CHEMICAL ENGINEERING, BUBBLES, CANADA

Subject Categories : Industrial Chemistry and Chemical Processing
      Mfg & Industrial Eng & Control of Product Sys

Distribution Statement : APPROVED FOR PUBLIC RELEASE