0

Development of Ceramic Components for Ceramic Gas Turbine Engine (CGT302) FREE

[+] Author Affiliations
Makoto Yoshida, Koichi Tanaka, Toshifumi Kubo, Hirofumi Terazono, Sazo Tsuruzono

Kyocera Corporation, Kokubu, Kagoshima, Japan

Paper No. 98-GT-398, pp. V002T04A007; 8 pages
doi:10.1115/98-GT-398
From:
  • ASME 1998 International Gas Turbine and Aeroengine Congress and Exhibition
  • Volume 2: Aircraft Engine; Marine; Microturbines and Small Turbomachinery
  • Stockholm, Sweden, June 2–5, 1998
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7863-7
  • Copyright © 1998 by ASME

abstract

The 300kW Industrial Ceramic Gas Turbine (CGT) Research and Development Project is going on as a part of New Sunshine project under the contract of Japanese Ministry of International Trade and Industry (MITI). The objective of this project is to achieve higher efficiency and lower pollutant emissions for small sized gas turbine engines used in co-generation systems.

Under this project, Kyocera has been developing various ceramic components for the CGT302 engine designed by Kawasaki Heavy Industries (KHI). This engine has set a thermal efficiency of over 42% at a turbine inlet temperature (TIT) of 1350°C as a final target. For such operations, we have developed the new silicon nitride materials, SN281 and SN282, which have excellent stress rupture strength and superior oxidation resistance at elevated temperatures up to 1500°C.

We have also developed improved fabrication technologies for the use of SN281 and SN282 as engine components. In 1997 fiscal year, all ceramic components for the CGT302 were successfully fabricated by using these new materials. Especially, the large sized monolithic power turbine (PT) rotor, which has a 192mm outer diameter, was manufactured by SN282, and exhibited fracture rotating speeds greater than 120% of the design rotating speed in cold spin tests.

This paper discusses the mechanical properties of these new materials and the results of ceramic components evaluated under engine test conditions.

Copyright © 1998 by ASME
This article is only available in the PDF format.

Figures

Tables

Interactive Graphics

Video

Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

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 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