Influence of coal grade on the technical and economical efficiency of CFB-units

Author

Russkikh, E.E. ; Nozdrenko, G.V.

Author_Institution

JSC "SibCOTES", Novosibirsk

fYear

2007

fDate

3-6 Oct. 2007

Firstpage

386

Lastpage

389

Abstract

The present status of the circulating fluidized bed technology combustion (CFB-technology) is commercially viable. CFB-boilers represent an advanced stage of development and have competitive advantages compared with the conventional pulverized-coal (PC) type of boilers.However, CFB-boilers are quite expensive as compared to the conventional PC-boilers, and for high-quality fuels CFB-technology does not always have certain benefits. The paper assesses technical and economical efficiency range for CFB- technology usage. The paper also provides assessment of optimal thermodynamic parameters of CFB-units depending on fuel. Influence of multivariable interactions of thermodynamic, technical, design and infrastructure restrictions are considered as well.

Keywords

boilers; coal; fluidised beds; pulverised fuels; steam power stations; CFB-units; circulating fluidized bed technology combustion; coal grade; conventional pulverized-coal type boiler; optimal thermodynamic parameters; Aggregates; Boilers; Combustion; Cost function; Fuel economy; Lagrangian functions; Mathematical model; Power generation economics; Thermodynamics; Turbines;

fLanguage

English

Publisher

ieee

Conference_Titel

Strategic Technology, 2007. IFOST 2007. International Forum on

Conference_Location

Ulaanbaatar

Print_ISBN

978-1-4244-3589-0

Electronic_ISBN

978-1-4244-1831-2

Type

conf

DOI

10.1109/IFOST.2007.4798611

Filename

4798611