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Title: One-dimensional model of fluidized-bed combustor dynamics

Starting from Soo's basic multiphase equations, a set of one-dimensional time-dependent hydrodynamic and enthalpy equations was developed for a fluidized bed reactor by averaging over its cross sectional area. The following effects were not considered in the derivation of the FBC equations: forces to accelerate the apparent mass of the solid particle, basset force, heat exchange by radiation between solids and fluid or within each phase, and electrodynamic effects. Within these restrictions, the material developed here forms the basis for a sequel to this report devoted to the development of stability studies and to the application of stochastic methods for FBC surveillance.
Authors:
Publication Date:
OSTI Identifier:
5782876
Report Number(s):
ORNL/TM-7141
DOE Contract Number:
W-7405-ENG-26
Resource Type:
Technical Report
Research Org:
Oak Ridge National Lab., TN (USA)
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; 42 ENGINEERING; FLUIDIZED-BED COMBUSTORS; MATHEMATICAL MODELS; CHEMICAL REACTIONS; COAL; ENERGY BALANCE; ENTHALPY; EQUATIONS; EQUATIONS OF MOTION; HEAT TRANSFER; HYDRODYNAMICS; ONE-DIMENSIONAL CALCULATIONS; CARBONACEOUS MATERIALS; COMBUSTORS; DIFFERENTIAL EQUATIONS; ENERGY SOURCES; ENERGY TRANSFER; FLUID MECHANICS; FOSSIL FUELS; FUELS; MECHANICS; PHYSICAL PROPERTIES; THERMODYNAMIC PROPERTIES 014000* -- Coal, Lignite, & Peat-- Combustion; 421000 -- Engineering-- Combustion Systems