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Title: Compound cooling flow turbulator for turbine component

Abstract

Multi-scale turbulation features, including first turbulators (46, 48) on a cooling surface (44), and smaller turbulators (52, 54, 58, 62) on the first turbulators. The first turbulators may be formed between larger turbulators (50). The first turbulators may be alternating ridges (46) and valleys (48). The smaller turbulators may be concave surface features such as dimples (62) and grooves (54), and/or convex surface features such as bumps (58) and smaller ridges (52). An embodiment with convex turbulators (52, 58) in the valleys (48) and concave turbulators (54, 62) on the ridges (46) increases the cooling surface area, reduces boundary layer separation, avoids coolant shadowing and stagnation, and reduces component mass.

Inventors:
; ; ;
Publication Date:
Research Org.:
Siemens Energy, Inc., Orlando, FL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1164355
Patent Number(s):
8,894,367
Application Number:
12/884,464
Assignee:
Siemens Energy, Inc. (Orlando, FL)
DOE Contract Number:  
FC26-05NT42644
Resource Type:
Patent
Resource Relation:
Patent File Date: 2010 Sep 17
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; 33 ADVANCED PROPULSION SYSTEMS

Citation Formats

Lee, Ching-Pang, Jiang, Nan, Marra, John J, and Rudolph, Ronald J. Compound cooling flow turbulator for turbine component. United States: N. p., 2014. Web.
Lee, Ching-Pang, Jiang, Nan, Marra, John J, & Rudolph, Ronald J. Compound cooling flow turbulator for turbine component. United States.
Lee, Ching-Pang, Jiang, Nan, Marra, John J, and Rudolph, Ronald J. 2014. "Compound cooling flow turbulator for turbine component". United States. https://www.osti.gov/servlets/purl/1164355.
@article{osti_1164355,
title = {Compound cooling flow turbulator for turbine component},
author = {Lee, Ching-Pang and Jiang, Nan and Marra, John J and Rudolph, Ronald J},
abstractNote = {Multi-scale turbulation features, including first turbulators (46, 48) on a cooling surface (44), and smaller turbulators (52, 54, 58, 62) on the first turbulators. The first turbulators may be formed between larger turbulators (50). The first turbulators may be alternating ridges (46) and valleys (48). The smaller turbulators may be concave surface features such as dimples (62) and grooves (54), and/or convex surface features such as bumps (58) and smaller ridges (52). An embodiment with convex turbulators (52, 58) in the valleys (48) and concave turbulators (54, 62) on the ridges (46) increases the cooling surface area, reduces boundary layer separation, avoids coolant shadowing and stagnation, and reduces component mass.},
doi = {},
url = {https://www.osti.gov/biblio/1164355}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Nov 25 00:00:00 EST 2014},
month = {Tue Nov 25 00:00:00 EST 2014}
}

Works referenced in this record:

Enhanced impingement cooled components
patent, October 1994


Heat exchanger
patent, November 1996


Turbulated cooling passages for turbine blades
patent, November 1999


Turbine blade
patent, March 2003


Article having turbulation and method of providing turbulation on an article
patent, July 2003


Hot gas path component with mesh and turbulated cooling
patent, January 2006


Offset Coriolis turbulator blade
patent, August 2006


Hot gas path component with mesh and dimpled cooling
patent, March 2007


Arrangement for cooling a flow-passage wall surrounding a flow passage, having at least one rib element
patent-application, January 2002


Heat exchanger for power generation equipment
patent-application, March 2004


Gas turbine blade cooling circuit having a cavity with a high aspect ratio
patent-application, November 2005


Centrifugal fan and apparatus using the same
patent-application, August 2006


Works referencing / citing this record:

Compound cooling flow turbulator for turbine component
patent, November 2014