Sampling related issues in pod-based model reduction of simplified circulating fluidised bed combustor model

• Authors: Katarzyna Bizon
• Languages of publication: EN

Abstracts

EN

Over the last decades the method of proper orthogonal decomposition (POD) has been successfully employed for reduced order modelling (ROM) in many applications, including distributed parameter models of chemical reactors. Nevertheless, there are still a number of issues that need further investigation. Among them, the policy of the collection of representative ensemble of experimental or simulation data, being a starting and perhaps most crucial point of the POD-based model reduction procedure. This paper summarises the theoretical background of the POD method and briefly discusses the sampling issue. Next, the reduction procedure is applied to an idealised model of circulating fluidised bed combustor (CFBC). Results obtained confirm that a proper choice of the sampling strategy is essential for the modes convergence however, even low number of observations can be sufficient for the determination of the faithful dynamical ROM.

Keywords

EN

model reduction; proper orthogonal decomposition; circulating fluidised bed; optimal sampling

• Publisher: De Gruyter Open
• Journal: Chemical and Process Engineering
• Year: 2015
• Volume: 36
• Issue: 3
• Pages: 365-376

Dates

published

1 - 9 - 2015

revised

11 - 8 - 2015

received

2 - 2 - 2015

online

5 - 11 - 2015

accepted

7 - 9 - 2015

Contributors

author

Katarzyna Bizon

• Institute of Chemical and Process Engineering, Cracow University of Technology, ul. Warszawska 24, 31-155 Kraków, Poland

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Identifiers

DOI

10.1515/cpe-2015-0026