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Stationäre Gasturbinen pp 609–636Cite as

Turbinenschaufel-Kühlung

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Zusammenfassung

Eine der wirkungsvollsten Methoden zur Steigerung der Leistungsdichte und des thermischen Wirkungsgrades einer Gasturbine im Kombiprozess besteht in der Anhebung der Turbineneintrittstemperatur (s. auch Kap. 2). Abbildung 17-1 zeigt die Entwicklung der Eintrittstemperatur seit 1950. Man erkennt, dass zu Beginn der 50er-Jahre die Gasturbinenschaufeln ohne eine aktive Kühlung auskamen. Dies lag natürlich an den niedrigen Heißgastemperaturen von rund 1000 K, die am Eintritt der Turbine auftraten. Die Entwicklung neuer, leistungsfähiger Gasturbinen mit höheren thermischen Wirkungsgraden verlangte aber gerade eine Steigerung der Eintrittstemperatur in die Turbine.

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  1. Bernhard Weigand

    Present address: TU Stuttgart, Filderstadt, Deutschland

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    1. Bernhard Weigand
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    1. Angewandte Wissenschaften, FB Naturwissenschaftliche Technik, Hochschule für, Lohbrügger Kirchstr. 65, Hamburg, 21033, Germany

      Christof Lechner

    2. Inst. für Strömungsmaschinen, Universität Hannover, Appelstr. 9, Hannover, 30167, Germany

      Jörg Seume

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    Weigand, B. (2010). Turbinenschaufel-Kühlung. In: Lechner, C., Seume, J. (eds) Stationäre Gasturbinen. VDI-Buch(). Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-92788-4_17

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