Turbine airfoil with an internal cooling system having vortex forming turbulators

Title: Turbine airfoil with an internal cooling system having vortex forming turbulators

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Abstract

A turbine airfoil usable in a turbine engine and having at least one cooling system is disclosed. At least a portion of the cooling system may include one or more cooling channels having a plurality of turbulators protruding from an inner surface and positioned generally nonorthogonal and nonparallel to a longitudinal axis of the airfoil cooling channel. The configuration of turbulators may create a higher internal convective cooling potential for the blade cooling passage, thereby generating a high rate of internal convective heat transfer and attendant improvement in overall cooling performance. This translates into a reduction in cooling fluid demand and better turbine performance.

Inventors:: Lee, Ching-Pang

Publication Date:: Tue Dec 30 00:00:00 EST 2014

Research Org.:: Siemens Energy, Inc., Orlando, FL (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1166773

Patent Number(s):: 8,920,122

Application Number:: 13/417,714

Assignee:: Siemens Energy, Inc. (Orlando, FL) NETL

DOE Contract Number:: FC26-05NT42644

Resource Type:: Patent

Resource Relation:: Patent File Date: 2012 Mar 12

Country of Publication:: United States

Language:: English

Subject:: 42 ENGINEERING

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                    Lee, Ching-Pang. Turbine airfoil with an internal cooling system having vortex forming turbulators.  United States: N. p., 2014. 
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                    Lee, Ching-Pang. Turbine airfoil with an internal cooling system having vortex forming turbulators.  United States.

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                    Lee, Ching-Pang. Tue .  
        "Turbine airfoil with an internal cooling system having vortex forming turbulators".  United States.  
        doi:.  https://www.osti.gov/servlets/purl/1166773.

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@article{osti_1166773,

  title        = {Turbine airfoil with an internal cooling system having vortex forming turbulators},

  author       = {Lee, Ching-Pang},

  abstractNote = {A turbine airfoil usable in a turbine engine and having at least one cooling system is disclosed. At least a portion of the cooling system may include one or more cooling channels having a plurality of turbulators protruding from an inner surface and positioned generally nonorthogonal and nonparallel to a longitudinal axis of the airfoil cooling channel. The configuration of turbulators may create a higher internal convective cooling potential for the blade cooling passage, thereby generating a high rate of internal convective heat transfer and attendant improvement in overall cooling performance. This translates into a reduction in cooling fluid demand and better turbine performance.},

  doi          = {},

  journal      = {},

  number       = ,

  volume       = ,

  place        = {United States},

  year         = {Tue Dec 30 00:00:00 EST 2014},

  month        = {Tue Dec 30 00:00:00 EST 2014}

}

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