RESEARCH PAPERS: Gas Turbines: Ceramics

Strength Design and Reliability Evaluation of a Hybrid Ceramic Stator Vane for Industrial Gas Turbines

[+] Author and Article Information
K. Nakakado, T. Machida

Hitachi, Ltd., Tsuchiura, Japan

H. Miyata

Hitachi, Ltd., Hitachi, Japan

T. Hisamatsu, N. Mori, I. Yuri

Central Research Institute of Electric Power Industry, Yokosuka, Japan

J. Eng. Gas Turbines Power 117(2), 245-250 (Apr 01, 1995) (6 pages) doi:10.1115/1.2814087 History: Received February 01, 1994; Online November 19, 2007


Employing ceramic materials for the critical components of industrial gas turbines is anticipated to improve the thermal efficiency of power plants. We developed a first-stage stator vane for a 1300°C class, 20-MW industrial gas turbine. This stator vane has a hybrid ceramic/metal structure, to increase the strength reliability of brittle ceramic parts, and to reduce the amount of cooling air needed for metal parts as well. The strength design results of a ceramic main part are described. Strength reliability evaluation results are also provided based on a cascade test using combustion gas under actual gas turbine running conditions.

Copyright © 1995 by The American Society of Mechanical Engineers
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