In this context the component fatigue and operational limitations of current and future power stations have to be investigated under the influence of enhanced plant dynamics.
For this purpose a detailed Modelica model of the hard coal fired steam power plant of Rostock; Germany is presented and extensively validated. The model makes use of the well-known non-commercial library ThermoPower. This Modelica Library is extended by models for common solid fuel burners and radiation-dominated firing zones. In addition to this; different approaches for modeling two-phase containers like the feed water tank are discussed. The derived model is used to compare different operation modes with respect to the occurring component wear.
Keywords: ThermoPower; coal fired power plants; firing modeling; two phase tank; power unit start up
Proceedings of the 8th International Modelica Conference; March 20th-22nd; Technical Univeristy; Dresden; Germany
[1] Dahl-Soerensen; M.J./ Solberg; B. Pulverized Fuel Control using Biased Flow Measurements. In: IFAC Symposium on Power Plants and Power Systems Control; Tampere; 2009.
[2] Hojczyk;B./ Hühne;W./ Thierfelder;H.G. Das Steinkohlekraftwerk Rostock. In: VGB Kraftwerkstechnik 77; 1997.
[3] Casella;C./ Leva;A. Open Library for Power Plant Simulation: Design and Experimental Validation. In: proceedings of 3rd. International Modelica Conference; Linköping; 2003.
[4] Niemczyk;P./ Andersen;P./ Bendtsen;J.D. /Soendergaard Pedersen;T. /Ravn;A.P. Derivation and validation of a coal mill model for control. In: IFAC Symposium on Power Plants and Power Systems Control; Tampere; 2009.
[5] Effenberger Dampferzeugung. Berlin; Springer-Verlag; 2000.
[6] Verein Deutscher Ingenieure VDI-Wärmeatlas; 10. Auflage. Berlin; Springer-Verlag; 2006.
[7] VDI/VDE-Gesellschaft Mess- und Automatisierungstechnik VDI/VDE - Richtlinie 3508: Block-Führung/-Regelung von Wärmekraftwerken; 2002.
[8] Deutscher Dampfkesselausschuss Technische Regeln für Dampfkessel (TRD) 301 Berechnung auf Wechselbeanpruchung durch schwellenden Innendruck bzw. durch kombinierte Innendruck- und Temperaturänderungen. Carl Heymanns Verlag KG; 2000.
[9] Deutscher Dampfkesselausschuss Technische Regeln für Dampfkessel (TRD) 508 Zusätzliche Prüfungen an Bauteilen berechnet mit zeitabhängigen Festigkeitswerten. Carl Heymanns Verlag KG; 2000.