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Title: Apparatus and methods for impingement cooling of an undercut region adjacent a side wall of a turbine nozzle segment

Abstract

A gas turbine nozzle segment has outer and inner bands. Each band includes a side wall, a cover and an impingement plate between the cover and nozzle wall defining two cavities on opposite sides of the impingement plate. Cooling steam is supplied to one cavity for flow through apertures of the impingement plate to cool the nozzle wall. The side wall of the band and inturned flange define with the nozzle wall an undercut region. The inturned flange has a plurality of apertures for directing cooling steam to cool the side wall between adjacent nozzle segments.

Inventors:
 [1];  [2]
  1. (Schenectady, NY)
  2. (Simpsonville, SC)
Issue Date:
Research Org.:
General Electric Company (Schenectady, NY)
OSTI Identifier:
874170
Patent Number(s):
6331096
Assignee:
General Electric Company (Schenectady, NY) NETL
DOE Contract Number:  
FC21-95MC31176
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
apparatus; methods; impingement; cooling; undercut; region; adjacent; wall; turbine; nozzle; segment; gas; outer; inner; bands; band; cover; plate; defining; cavities; opposite; steam; supplied; cavity; flow; apertures; cool; inturned; flange; define; plurality; directing; segments; gas turbine; turbine nozzle; region adjacent; nozzle segment; /415/

Citation Formats

Burdgick, Steven Sebastian, and Itzel, Gary Michael. Apparatus and methods for impingement cooling of an undercut region adjacent a side wall of a turbine nozzle segment. United States: N. p., 2001. Web.
Burdgick, Steven Sebastian, & Itzel, Gary Michael. Apparatus and methods for impingement cooling of an undercut region adjacent a side wall of a turbine nozzle segment. United States.
Burdgick, Steven Sebastian, and Itzel, Gary Michael. Mon . "Apparatus and methods for impingement cooling of an undercut region adjacent a side wall of a turbine nozzle segment". United States. https://www.osti.gov/servlets/purl/874170.
@article{osti_874170,
title = {Apparatus and methods for impingement cooling of an undercut region adjacent a side wall of a turbine nozzle segment},
author = {Burdgick, Steven Sebastian and Itzel, Gary Michael},
abstractNote = {A gas turbine nozzle segment has outer and inner bands. Each band includes a side wall, a cover and an impingement plate between the cover and nozzle wall defining two cavities on opposite sides of the impingement plate. Cooling steam is supplied to one cavity for flow through apertures of the impingement plate to cool the nozzle wall. The side wall of the band and inturned flange define with the nozzle wall an undercut region. The inturned flange has a plurality of apertures for directing cooling steam to cool the side wall between adjacent nozzle segments.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2001},
month = {1}
}

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