Closed loop steam cooled airfoil
Abstract
An airfoil, a method of manufacturing an airfoil, and a system for cooling an airfoil is provided. The cooling system can be used with an airfoil located in the first stages of a combustion turbine within a combined cycle power generation plant and involves flowing closed loop steam through a pin array set within an airfoil. The airfoil can comprise a cavity having a cooling chamber bounded by an interior wall and an exterior wall so that steam can enter the cavity, pass through the pin array, and then return to the cavity to thereby cool the airfoil. The method of manufacturing an airfoil can include a type of lost wax investment casting process in which a pin array is cast into an airfoil to form a cooling chamber.
- Inventors:
- Issue Date:
- Research Org.:
- Siemens Power Generation, Inc., Orlando, FL, (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1175705
- Patent Number(s):
- 7028747
- Application Number:
- 10/308,280
- Assignee:
- Siemens Power Generation, Inc.
- Patent Classifications (CPCs):
-
F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01D - NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
F - MECHANICAL ENGINEERING F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04 F05D - INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- DOE Contract Number:
- AC05-00 OR22725
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING
Citation Formats
Widrig, Scott M., Rudolph, Ronald J., and Wagner, Gregg P. Closed loop steam cooled airfoil. United States: N. p., 2006.
Web.
Widrig, Scott M., Rudolph, Ronald J., & Wagner, Gregg P. Closed loop steam cooled airfoil. United States.
Widrig, Scott M., Rudolph, Ronald J., and Wagner, Gregg P. Tue .
"Closed loop steam cooled airfoil". United States. https://www.osti.gov/servlets/purl/1175705.
@article{osti_1175705,
title = {Closed loop steam cooled airfoil},
author = {Widrig, Scott M. and Rudolph, Ronald J. and Wagner, Gregg P.},
abstractNote = {An airfoil, a method of manufacturing an airfoil, and a system for cooling an airfoil is provided. The cooling system can be used with an airfoil located in the first stages of a combustion turbine within a combined cycle power generation plant and involves flowing closed loop steam through a pin array set within an airfoil. The airfoil can comprise a cavity having a cooling chamber bounded by an interior wall and an exterior wall so that steam can enter the cavity, pass through the pin array, and then return to the cavity to thereby cool the airfoil. The method of manufacturing an airfoil can include a type of lost wax investment casting process in which a pin array is cast into an airfoil to form a cooling chamber.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Apr 18 00:00:00 EDT 2006},
month = {Tue Apr 18 00:00:00 EDT 2006}
}
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