Hot spot detection system for vanes or blades of a combustion turbine
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.
- Research Organization:
- Westinghouse Electric Corporation
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- FC21-95MC32267
- Assignee:
- Siemens Westinghouse Power Corp., Orlando, FL (United States)
- Patent Number(s):
- US 5,865,598/A/
- Application Number:
- PAN: 8-886,877
- OSTI ID:
- 321246
- Resource Relation:
- Other Information: PBD: 2 Feb 1999
- Country of Publication:
- United States
- Language:
- English
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