Optimization of start-up conditions to reduce thermal loads in cooled components of a supercritical steam turbine

• Autorzy: Kosman, W.
• Języki publikacji: EN

Abstrakty

EN

The paper describes the analysis of a start-up process of supercritical steam turbines. The problem under the investigation is the decrease of thermal loads due to the designs that are specific to this type of machines. The analysis focuses on the main components - the rotor and the inner casing that operate under the highest level of the thermal loads. The analysis involves the determination of the temperature and the stress fields and the behavior in the response to transient loading (thermal elongations). The obtained results allow to compare various cases of the transient loading.

Słowa kluczowe

PL

nadkrytyczna turbina parowa; przebieg nieustalony; start-up; optymalizacja

EN

supercritical steam turbine; transient; start-up; optimization

• Czasopismo: Journal of Power Technologies
• Rocznik: 2015
• Tom: Vol. 95, spec.
• Strony: 47--53
• Opis fizyczny: Bibliogr. 7 poz., rys., wykr.

Twórcy

autor

Kosman, W.

• Silesian University of Technology, Konarskiego 18, 44-100 Gliwice, Poland,

Bibliografia

• [1] R. Knodler, S. Straub, B. Scarlin, Komet 650–investigation of materials for use in steam turbines at temperatures up to 650 (degree) c, VGB PowerTech 88 (3) (2008) 59.
• [2] M. Susta, Latest development in supercritical steam technology, PowerGen Asia (2008) 21–23.
• [3] W. Kosman, Thermal analysis of cooled supercritical steam turbine components, Energy 35 (2) (2010) 1181–1187.
• [4] W. Kosman, The possibilities to reduce casing thermal loads of the supercritical steam turbines, Archives of Thermodynamics 30 (2009) 149–161.
• [5] F. Cziesla, H. Kremer, U. Much, J.-E. Riemschneider, R. Quinkertz, Advanced 800+ mw steam power plants and future ccs options, in: COAL-GEN Europe 2009, Katowice, Poland, 2009.
• [6] F. Cziesla, J. Bewerunge, A. Senzel, Lünen–state-of-theart ultra supercritical steam power plant under construction, in: POWERGEN Europe, 2009.
• [7] W. Kosman, The influence of external cooling system on the performance of supercritical steam turbine cycles, Archives of Thermodynamics 31 (3) (2010) 131–144.

Uwagi

PL

Tytuł numeru spec. "Polish Energy Mix 2014"