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Study of particle movement in conical fluidized beds using the tracer method

Abstract

In the work reported here, a method is described which enables the path and speed of the particles during fluidization to be measured using a tracer particle technique. Using statistical methods, it is then possible to determine the path-time diagram, the rate of circulation of the particles, the transport capacity, the extent of mixing and the relative residence time of the particles in a given zone of the bed. Measurements were made at room temperature in a 3'' model fluidized bed as a first step in evaluating the feasibility of the test method. Criteria for the type of coating, the growth rate of the coatings and the coating potential of the coating as were correlated with the relative dwell time of the particles and the dwell-time spectrum of the coating gases in a given part of the bed. It was therefore necessary to know the streaming behavior of the fluidizing gas, and so such an analysis was first carried out.
Publication Date:
Jan 15, 1976
Product Type:
Technical Report
Report Number:
GERHTR-165; JUEL-1266
Reference Number:
ERA-02-054323; EDB-77-125350
Resource Relation:
Related Information: English translation of the German report JUL-1266. Work performed under United States -- German High Temperature Reactor Research Exchange Program
Subject:
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; 11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; COATED FUEL PARTICLES; FABRICATION; HTGR TYPE REACTORS; FLUIDIZED BED; GASES; PYROLYTIC CARBON; SURFACE COATING; CARBON; DEPOSITION; ELEMENTS; FLUIDS; FUEL PARTICLES; GAS COOLED REACTORS; GRAPHITE MODERATED REACTORS; NONMETALS; REACTORS; 210300* - Power Reactors, Nonbreeding, Graphite Moderated; 050700 - Nuclear Fuels- Fuels Production & Properties
OSTI ID:
8181151
Research Organizations:
Kernforschungsanlage Juelich G.m.b.H. (Germany). Inst. fuer Reaktorwerkstoffe und Heisse Zellen
Country of Origin:
Germany
Language:
English
Submitting Site:
TIC
Size:
113 p.
Announcement Date:
Oct 01, 1977

Citation Formats

Penkalla, H. J., Gyarmati, E., and Nickel, H. Study of particle movement in conical fluidized beds using the tracer method. Germany: N. p., 1976. Web.
Penkalla, H. J., Gyarmati, E., & Nickel, H. Study of particle movement in conical fluidized beds using the tracer method. Germany.
Penkalla, H. J., Gyarmati, E., and Nickel, H. 1976. "Study of particle movement in conical fluidized beds using the tracer method." Germany.
@misc{etde_8181151,
title = {Study of particle movement in conical fluidized beds using the tracer method}
author = {Penkalla, H. J., Gyarmati, E., and Nickel, H.}
abstractNote = {In the work reported here, a method is described which enables the path and speed of the particles during fluidization to be measured using a tracer particle technique. Using statistical methods, it is then possible to determine the path-time diagram, the rate of circulation of the particles, the transport capacity, the extent of mixing and the relative residence time of the particles in a given zone of the bed. Measurements were made at room temperature in a 3'' model fluidized bed as a first step in evaluating the feasibility of the test method. Criteria for the type of coating, the growth rate of the coatings and the coating potential of the coating as were correlated with the relative dwell time of the particles and the dwell-time spectrum of the coating gases in a given part of the bed. It was therefore necessary to know the streaming behavior of the fluidizing gas, and so such an analysis was first carried out.}
place = {Germany}
year = {1976}
month = {Jan}
}