A simplified methodology for scaling hydrodynamic data from Lagisza 460 MWe supercritical CFB boiler

• Authors: Paweł Mirek
• Languages of publication: EN

Abstracts

EN

The paper presents the results of model studies on the hydrodynamics of the world's first supercritical circulating fluidized bed boiler Lagisza 460 MWe, carried out on a scale model built in a scale of 1/20 while preserving the full geometrical similarity. To reflect the macroscopic pattern of flow in the boiler's combustion chamber, tests were carried out based on two dimensionless flow dynamic similarity criteria, while maintaining a constant Froude number value between the commercial and the scaled-down units. A mix of polydispersion solids with its fractional composition determined by scaling down the particle size distribution of the boiler's inert material was utilised for the tests using a special scaling function. The obtained results show very good agreement with the results of measurements taken on the Lagisza 460 MWe supercritical CFB boiler.

Keywords

EN

circulating fluidized bed; scaling; hydrodynamics

• Publisher: De Gruyter Open
• Journal: Chemical and Process Engineering
• Year: 2011
• Volume: 32
• Issue: 4
• Pages: 245-253

Dates

published

1 - 12 - 2011

online

20 - 10 - 2011

Contributors

author

Paweł Mirek

• Faculty of Environmental Protection and Engineering, Institute of Advanced Energy Technologies, Częstochowa University of Technology, ul. Dąbrowskiego 69, 42-200 Częstochowa, Poland

References

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Identifiers

DOI

10.2478/v10176-011-0019-1