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Title: 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:
; ;
Publication Date:
Research Org.:
Siemens Power Generation, Inc., Orlando, FL, (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1175705
Patent Number(s):
7,028,747
Application Number:
10/308,280
Assignee:
Siemens Power Generation, Inc. OSTI
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. doi:. 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}
}

Patent:

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