TECHNICAL PAPERS: Gas Turbines: Cycle Innovations

Design Optimization of the Graz Cycle Prototype Plant

[+] Author and Article Information
Herbert Jericha, Emil Göttlich, Wolfgang Sanz, Franz Heitmeir

Institute for Thermal Turbomachinery and Machine Dynamics, Graz University of Technology, Inffeldgasse 25, A-8010 Graz, Austria

J. Eng. Gas Turbines Power 126(4), 733-740 (Nov 24, 2004) (8 pages) doi:10.1115/1.1762910 History: Received October 01, 2002; Revised March 01, 2003; Online November 24, 2004
Copyright © 2004 by ASME
Your Session has timed out. Please sign back in to continue.



Grahic Jump Location
Principle flow scheme of Graz cycle power plant
Grahic Jump Location
Schematic arrangement of turbomachine shafts
Grahic Jump Location
Comparison of O2 burner design solutions (a) H2+O2, (b) CH4+O2, (c) oxygen blown fuel gas+O2
Grahic Jump Location
Combustion chamber, O2 burner and annular flame cage cross section at entry to HTT
Grahic Jump Location
High speed shaft, HTT and HPT driving C3 and power gear to el. generator Nr. 2
Grahic Jump Location
(a) Standard gas turbine rotor speed optimization at given volume flow and enthalpy head; (b) HTT shaft built in two overhung disks (single and double) with optimal speed selected for compressor and gear drive
Grahic Jump Location
HTT first-stage velocity triangles and blade profiles over blade height, for tip, mean and root section in curved annular blade channel
Grahic Jump Location
HTT first-stage transonic expansion in nozzle profile near blade root and tail shocks of nozzle trailing edges reaching into blade profile inlet creating a high-frequency shock passing flow situation there
Grahic Jump Location
HTT first-stage blade design drawing, steam cooling ICS slits and supply hole arrangement
Grahic Jump Location
HTT first-stage steam cooling flow; pressure distribution radial, through nozzle cooling holes inward, through tangential acceleration nozzles into wheel space and radially outwards in ICS supply holes is shown, transonic pressure ratio for ICS slits is secured
Grahic Jump Location
HTT cooling flow in both rotors and intermediate shaft vibration damper
Grahic Jump Location
General optimized arrangement of turbomachines for a 92 MW prototype unit
Grahic Jump Location
Detailed thermodynamic cycle data of 92 MW Graz cycle plant, 12




Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In