This paper describes results obtained during a research project on improving metal temperature prediction in air-cooled gas turbine blades and nozzles. Two different fluid-dynamic analysis methods have been used to predict the heat exchange coefficients for a gas turbine first stage nozzle. A finite-element thermal analysis was then carried out to predict the airfoil temperature distribution. The numerical predictions account for impingement and film-cooling. Predicted temperature distributions are finally compared to measurements taken on an instrumented machine. Predictions based on the full viscous analysis code show the best agreement with experimental data in the critical area near the airfoil leading edge.

Theoretical and Experimental Investigation of Temperature Distribution in a Gas Turbine First Stage Nozzle / Arnone A.; Benvenuti E.; Corradini U.; Stecco S. S.. - STAMPA. - (1992), pp. 557-562. (Intervento presentato al convegno 6th International Conference on Gas Turbines in Cogeneration and Utility Industrial and Independent Power Generation - 1992 ASME COGEN-TURBO tenutosi a Houston, TX, USA nel 1-3 September, 1992).

Theoretical and Experimental Investigation of Temperature Distribution in a Gas Turbine First Stage Nozzle

ARNONE, ANDREA;
1992

Abstract

This paper describes results obtained during a research project on improving metal temperature prediction in air-cooled gas turbine blades and nozzles. Two different fluid-dynamic analysis methods have been used to predict the heat exchange coefficients for a gas turbine first stage nozzle. A finite-element thermal analysis was then carried out to predict the airfoil temperature distribution. The numerical predictions account for impingement and film-cooling. Predicted temperature distributions are finally compared to measurements taken on an instrumented machine. Predictions based on the full viscous analysis code show the best agreement with experimental data in the critical area near the airfoil leading edge.
1992
Conference proceedings
6th International Conference on Gas Turbines in Cogeneration and Utility Industrial and Independent Power Generation - 1992 ASME COGEN-TURBO
Houston, TX, USA
1-3 September, 1992
Arnone A.; Benvenuti E.; Corradini U.; Stecco S. S.
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in FLORE sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/649078
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 4
  • ???jsp.display-item.citation.isi??? ND
social impact