The influence of sampling point on solids suspension density applied in scaling of the hydrodynamics of a supercritical CFB boiler

• Autorzy: Paweł Mirek , Jolanta Ziaja
• Języki publikacji: EN

Abstrakty

EN

The article presents the results of laboratory tests carried out on a scaling model of the 966MWth fluidised-bed boiler operating in the Lagisza Power Plant, made on a scale of 1:20 while preserving the geometrical similarity. The tests were carried out for scaled-down material taken from different locations on the circulation contour in the state of full boiler loading. To reflect the hydrodynamic conditions prevailing in the combustion chamber, solids with properly selected density and particle size distribution were used. The obtained results have made it possible to determine the location for taking the most representative granular material sample.

Słowa kluczowe

EN

circulating fluidised bed; hydrodynamics; scaling

• Czasopismo: Chemical and Process Engineering
• Rocznik: 2011
• Tom: 32
• Numer: 4
• Strony: 391-399

Daty

wydano

2011-12-01

online

2012-02-15

Twórcy

autor

Paweł Mirek

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

autor

Jolanta Ziaja

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

Bibliografia

• Glicksman L. R., Hyre M., Woloshun K., 1993. Simplified scaling relationships for fluidized beds. Powder Technol., 77, 177-199. DOI: 10.1016/0032-5910(93)80055-F.[Crossref]
• Horio M., Grace J.R., Avidan A.A., Knowlton T.M. (Eds.), 1997. Circulating Fluidized Beds, Blackie Academic and Professional, London.
• Ishii H., Nakajima T., Horio M., 1989. The clustering annular flow model of circulating fluidized bed. J. Chem. Eng. Japan, 22, 484-490.
• Knowlton T.M., Karri S.B.R., Issangya A., 2005. Scale-up of fluidized-bed hydrodynamics. Powder Technol., 150, 272-277. DOI: 10.1016/j.powtec.2004.11.036.[Crossref]
• Mirek P., 2011. A simplified methodology for scaling hydrodynamic data from Lagisza 460MWe supercritical CFB boiler. Chem. Process Eng., 32, 245-253. DOI: 10.2478/v10176-011-0019-1[Crossref][WoS]
• Nian-Sheng Cheng, 2009. Comparison of formulas for drag coefficient and settling velocity of spherical particles. Powder Technol., 189, 395-398. DOI: 10.1016/j.powtec.2008.07.006.[Crossref]
• Van der Meer E.H., Thorpe R.B., Davidson J.F., 1999. Dimensionless groups for practicable similarity of circulating fluidised beds. Chem. Eng. Sci., 54, 5369-5376. DOI: 10.1016/S0009-2509(99)00270-5.[Crossref]

Identyfikatory

DOI

10.2478/v10176-011-0031-5