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Title: Cooling system for a gas turbine using a cylindrical insert having V-shaped notch weirs

Abstract

An improved cooling system for a gas turbine is disclosed. A plurality of V-shaped notch weirs are utilized to meter a coolant liquid from a pool of coolant into a plurality of platform and airfoil coolant channels formed in the buckets of the turbine. The V-shaped notch weirs are formed in a separately machined cylindrical insert and serve to desensitize the flow of coolant into the individual platform and airfoil coolant channels to design tolerances and non-uniform flow distribution.

Inventors:
 [1];  [2]
  1. (Clifton Park, NY)
  2. (Ballston Lake, NY)
Issue Date:
Research Org.:
General Electric Co
OSTI Identifier:
863766
Patent Number(s):
4244676
Assignee:
General Electric Company (Schenectady, NY) OSTI
DOE Contract Number:  
EX-76-C-01-1806
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
cooling; gas; turbine; cylindrical; insert; v-shaped; notch; weirs; improved; disclosed; plurality; utilized; meter; coolant; liquid; pool; platform; airfoil; channels; formed; buckets; separately; machined; serve; desensitize; flow; individual; design; tolerances; non-uniform; distribution; cylindrical insert; coolant channel; channels formed; gas turbine; coolant liquid; v-shaped notch; notch weirs; flow distribution; uniform flow; coolant channels; improved cooling; /416/

Citation Formats

Grondahl, Clayton M., and Germain, Malcolm R. Cooling system for a gas turbine using a cylindrical insert having V-shaped notch weirs. United States: N. p., 1981. Web.
Grondahl, Clayton M., & Germain, Malcolm R. Cooling system for a gas turbine using a cylindrical insert having V-shaped notch weirs. United States.
Grondahl, Clayton M., and Germain, Malcolm R. Thu . "Cooling system for a gas turbine using a cylindrical insert having V-shaped notch weirs". United States. https://www.osti.gov/servlets/purl/863766.
@article{osti_863766,
title = {Cooling system for a gas turbine using a cylindrical insert having V-shaped notch weirs},
author = {Grondahl, Clayton M. and Germain, Malcolm R.},
abstractNote = {An improved cooling system for a gas turbine is disclosed. A plurality of V-shaped notch weirs are utilized to meter a coolant liquid from a pool of coolant into a plurality of platform and airfoil coolant channels formed in the buckets of the turbine. The V-shaped notch weirs are formed in a separately machined cylindrical insert and serve to desensitize the flow of coolant into the individual platform and airfoil coolant channels to design tolerances and non-uniform flow distribution.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1981},
month = {1}
}

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