skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Compound cooling flow turbulator for turbine component

Patent ·
OSTI ID:1164355
; ; ;

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.

Research Organization:
Siemens Energy, Inc., Orlando, FL (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
FC26-05NT42644
Assignee:
Siemens Energy, Inc. (Orlando, FL)
Patent Number(s):
8,894,367
Application Number:
12/884,464
OSTI ID:
1164355
Resource Relation:
Patent File Date: 2010 Sep 17
Country of Publication:
United States
Language:
English

References (23)

Angled turbulence promoter patent April 1985
System for controlling the flow of a fluid medium relative to an object patent December 1990
Enhanced impingement cooled components patent October 1994
Heat exchanger patent November 1996
Turbulator configuration for cooling passages of an airfoil in a gas turbine engine patent April 1998
Turbulator configuration for cooling passages or rotor blade in a gas turbine engine patent August 1998
Turbulated cooling passages for turbine blades patent November 1999
Heat exchanger tube for heating boilers patent June 2000
Coriolis turbulator blade patent December 2001
Enhanced heat transfer surface for cast-in-bump-covered cooling surfaces and methods of enhancing heat transfer patent June 2002
Turbine blade patent March 2003
Method for enhancing heat transfer inside a turbulated cooling passage patent June 2003
Article having turbulation and method of providing turbulation on an article patent July 2003
Turbine blade having a vortex forming cooling system for a trailing edge patent August 2005
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
Graphical user interface for displaying and navigating in a directed graph structure patent July 2007
Turbine nozzle with trailing edge convection and film cooling patent August 2009
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

Cited By (1)

Compound cooling flow turbulator for turbine component patent November 2014

Similar Records

Related Subjects

42 ENGINEERING
33 ADVANCED PROPULSION SYSTEMS