Title:
GAS TURBINE FOR PRESSURIZED FLUIDIZED BED COMBUSTION PLANT AND METHOD FOR DETECTING SECULAR DETERIORATION OF TURBINE
Document Type and Number:
Japanese Patent JP3045041
Kind Code:
B2
Abstract:
PURPOSE: To perform safely continuous operation of a gas turbine body by a method wherein an exhaust gas temperature and an exhaust gas pressure at a turbine outlet, the inlet temperature of a turbine, and the inlet pressure of turbine are measured, and based on the measurements thereof, turbine efficiency is calculated.
CONSTITUTION: Temperature TT4 and a total pressure PT4 at the inlet of a turbine 2 and an exhaust gas temperature TT5 and a pressure PT5 at the outlet of the turbine 2 are measured and turbine efficiency is determined through a given formula. By deciding the change of a calculating turbine efficiency, dust accumulation or erosion of the turbine are detected. This constitution detects an adverse influence on the gas turbine body side owing to wear of a blade caused by dust accumulation and secular erosion of a PFBC plant gas turbine during continuous operation and high reliability operation is executed.
Inventors:
Nobuyuki Horii
Isao Takehara
Tetsuo Sasada
Tomo Sato
Isao Takehara
Tetsuo Sasada
Tomo Sato
Application Number:
JP13140795A
Publication Date:
May 22, 2000
Filing Date:
May 30, 1995
Export Citation:
Assignee:
株式会社日立製作所
International Classes:
F02C7/00; F02C3/26; F02C9/00; F02C9/18; (IPC1-7): F02C7/00; F02C3/26; F02C9/00
Domestic Patent References:
| JP6193462A | ||||
| JP63131834A | ||||
| JP60216098A | ||||
| JP59226234A |
Attorney, Agent or Firm:
Yasuo Sakuta
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