This paper presents the spectral reduction of the 1-D distributed dynamic model of a non-isothermal Circulating Fluidized Bed Combustor (CFBC). The continuum model is first approximated by a finite-difference method and integrated in time by means of Adams-Moulton method to provide a "reference" solution. Then, Proper Orthogonal Decomposition (POD) is introduced, coupled with a spectral penalty method, to derive a reduced order model (ROM). The penalty method deals with the variable boundary conditions which characterize the original model. The numerical performance of the proposed approach is evaluated

POD Reduced Order Dynamical Model of Non-isothermal Circulating Fluidized Bed Combustor

Continillo G.
2010

Abstract

This paper presents the spectral reduction of the 1-D distributed dynamic model of a non-isothermal Circulating Fluidized Bed Combustor (CFBC). The continuum model is first approximated by a finite-difference method and integrated in time by means of Adams-Moulton method to provide a "reference" solution. Then, Proper Orthogonal Decomposition (POD) is introduced, coupled with a spectral penalty method, to derive a reduced order model (ROM). The penalty method deals with the variable boundary conditions which characterize the original model. The numerical performance of the proposed approach is evaluated
9780444535696
POD/Galerkin; Circulating Fluidized Bed
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.12070/9154
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