Thermodynamic and economic analysis of a 900 MW ultra-supercritical power unit

• Autorzy: Łukowicz H. , Dykas S. , Rulik S. , Stępczyńska K.
• Języki publikacji: EN

Abstrakty

EN

The paper presents a thermal-economic analysis of different variants of a hard coal-fired 900 MW ultra-supercritical power unit. The aim of the study was to determine the effect of the parameters of live and reheated steam on the basic thermodynamic and economic indices of the thermal cycle. The subject of the study was the cycle configuration proposed as the "initial thermal cycle structure" during the completion of the project "Advanced Technologies for Energy Generation" with the live and reheated steam parameters of 650/670 [degrees]C. At the same time, a new concept of a thermal cycle for ultra-supercritical parameters with live and reheated steam temperature of 700/720 [degrees]C was suggested. The analysis of the ultra-supercritical unit concerned a variant with a single and double steam reheat. All solutions presented in the paper were subject to a detailed thermodynamic analysis, as well as an economic one which also included CO2 emissions charges. The conducted economic analysis made it possible to determine the maximum value of investment expenditures at which given solutions are pro.table.

Słowa kluczowe

EN

coal-fired power unit; double reheat; steam cycle; ultra-supercritical steam parameters

PL

obieg pary; parametry apry; podwójne podgrzewanie

• Wydawca: Wydawnictwo Instytutu Maszyn Przepływowych PAN ; Komitet Termodynamiki i Spalania PAN
• Czasopismo: Archives of Thermodynamics
• Rocznik: 2011
• Tom: Vol. 32, no. 3
• Strony: 231--245
• Opis fizyczny: Bibliogr. 7 poz.,

Twórcy

autor

Łukowicz H.

autor

Dykas S.

autor

Rulik S.

autor

Stępczyńska K.

• Silesian University of Technology, Institute of Power Engineering and Turbomachinery, ul. Konarskiego 18, 44-100 Gliwice, Poland,

Bibliografia

• [1] BEJAN A., TSATSARONIS G., MORAN M.: Thermal design and optimization John-Wiley & Sons, Inc. New York 1996.
• [2] BLUM R., BUGGE J., KJAER S.: USC 700°C Power Technology — A European success story VGB PowerTech 4(/2009), 26-32.
• [3] BLUM R., KJÆR S., BUGGE J.: Development of a PF Fired High Efficiency Power Plant (AD700).
• [4] CHMIELNIAK T.: Thermodynamical cycles of turbines. Wrocław 1988 (in Polish).
• [5] KOSMAN G., RUSIN A., TALER J., PAWLIK M.: The issues of design and operation of boilers and turbines for the supercritical coal-fired power units. Gliwice 2010 (in Polish).
• [6] PIWOWARSKI M.: Optimization of steam cycles with respect to supercritical parameters. Polish Maritime Research 2009/S1, 45–51.
• [7] WEISSINGER G., CHEN Q.: Boiler Designs for the AD700 Power Plant. ALSTOM Power Boiler GmbH, 2005.