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Title: Hot spot detection system for vanes or blades of a combustion turbine

Abstract

This invention includes a detection system that can determine if a turbine component, such as a turbine vane or blade, has exceeded a critical temperature, such as a melting point, along any point along the entire surface of the vane or blade. This system can be employed in a conventional combustion turbine having a compressor, a combustor and a turbine section. Included within this system is a chemical coating disposed along the entire interior surface of a vane or blade and a closed loop cooling system that circulates a coolant through the interior of the vane or blade. If the temperature of the vane or blade exceeds a critical temperature, the chemical coating will be expelled from the vane or blade into the coolant. Since while traversing the closed loop cooling system the coolant passes through a detector, the presence of the chemical coating in the coolant will be sensed by the system. If the chemical coating is detected, this indicates that the vane or blade has exceeded a critical temperature. 5 figs.

Inventors:
Publication Date:
Research Org.:
Westinghouse Electric Corporation
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
321246
Patent Number(s):
US 5,865,598/A/
Application Number:
PAN: 8-886,877
Assignee:
Siemens Westinghouse Power Corp., Orlando, FL (United States) PTO; SCA: 330103; 420500; PA: EDB-99:029903; SN: 99002064410
DOE Contract Number:  
FC21-95MC32267
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 2 Feb 1999
Country of Publication:
United States
Language:
English
Subject:
33 ADVANCED PROPULSION SYSTEMS; 42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES; TURBINE BLADES; TEMPERATURE MEASUREMENT; ON-LINE MEASUREMENT SYSTEMS; DESIGN; GAS TURBINE ENGINES; COATINGS; CHEMICAL ANALYSIS; COOLANTS

Citation Formats

Twerdochlib, M. Hot spot detection system for vanes or blades of a combustion turbine. United States: N. p., 1999. Web.
Twerdochlib, M. Hot spot detection system for vanes or blades of a combustion turbine. United States.
Twerdochlib, M. Tue . "Hot spot detection system for vanes or blades of a combustion turbine". United States.
@article{osti_321246,
title = {Hot spot detection system for vanes or blades of a combustion turbine},
author = {Twerdochlib, M.},
abstractNote = {This invention includes a detection system that can determine if a turbine component, such as a turbine vane or blade, has exceeded a critical temperature, such as a melting point, along any point along the entire surface of the vane or blade. This system can be employed in a conventional combustion turbine having a compressor, a combustor and a turbine section. Included within this system is a chemical coating disposed along the entire interior surface of a vane or blade and a closed loop cooling system that circulates a coolant through the interior of the vane or blade. If the temperature of the vane or blade exceeds a critical temperature, the chemical coating will be expelled from the vane or blade into the coolant. Since while traversing the closed loop cooling system the coolant passes through a detector, the presence of the chemical coating in the coolant will be sensed by the system. If the chemical coating is detected, this indicates that the vane or blade has exceeded a critical temperature. 5 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {2}
}