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Research Papers

Recent Advances of Internal Cooling Techniques for Gas Turbine Airfoils

[+] Author and Article Information
Minking K. Chyu

e-mail: mkchyu@pitt.edu

Sin Chien Siw

Department of Mechanical Engineering and Materials Science,
University of Pittsburgh,
Pittsburgh, PA 15261

1Corresponding author.

Manuscript received November 5, 2012; final manuscript received February 5, 2013; published online May 17, 2013. Assoc. Editor: Srinath V. Ekkad.

J. Thermal Sci. Eng. Appl 5(2), 021008 (May 17, 2013) (12 pages) Paper No: TSEA-12-1197; doi: 10.1115/1.4023829 History: Received November 05, 2012; Revised February 05, 2013

The performance goal of modern gas turbine engines, both land-base and air-breathing engines, can be achieved by increasing the turbine inlet temperature (TIT). The level of TIT in the near future can reach as high as 1700 °C for utility turbines and over 1900 °C for advanced military engines. Advanced and innovative cooling techniques become one of the crucial major elements supporting the development of modern gas turbines, both land-based and air-breathing engines with continual increment of turbine inlet temperature (TIT) in order to meet higher energy demand and efficiency. This paper discusses state-of-the-art airfoil cooling techniques that are mainly applicable in the mainbody and trailing edge section of turbine airfoil. Potential internal cooling designs for near-term applications based on current manufacturing capabilities are identified. A literature survey focusing primarily on the past four to five years has also been performed.

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References

Han, J. C., 2004, “Recent Studies in Turbine Blade Cooling,” Int. J. Rotat. Mach., 10, pp. 443–457. [CrossRef]
Dennis, R. A., 2006, “FE Research Direction—Thermal Barrier Coatings and Health Monitoring Techniques,” Workshop on Advanced Coating Materials and Technology for Extreme Environments, Pennsylvania State University, State College, PA, Sept. 12–13.
Dennis, R. A., and Harp, R., 2007, “Overview of the U.S. Department of Energy's Office of Fossil Energy Advanced Turbine Program for Coal Based Power Systems With Carbon Capture,” ASME Turbo Expo, Paper No. GT2007-28338. [CrossRef]
Alvin, M. A., Pettit, F., Meier, G., Yanar, N., Chyu, M., Mazzotta, D., Slaughter, W., Karaivanov, V., Kang, B., Feng, C., Chen, R., and Fu, T.-C., 2007, “Materials and Component Development for Advanced Turbine Systems,” Proceedings of the EPRI 5th International Conference on Advances in Materials Technology for Fossil Power Plants, Florida, Oct. 3–5.
Chyu, M. K., 2010, “Recent Advances in Turbine Heat Transfer—With a Review of Transition to Coal Gas-Based Systems,” Proceedings of the International Heat Transfer Conference IHTC-14, Washington, DC.
Han, J. C., and Huh, M., 2009, “Recent Studies in Turbine Blade Internal Cooling,” Proceedings of the International Symposium on Heat Transfer in Gas Turbine Systems, Antalya, Turkey.
Langston, L. S., and Holley, B. M., 2009, “Turbine Airfoil Leading Edge Stagnation Aerodynamics and Heat Transfer—A Review,” Proceedings of the International Symposium on Heat Transfer in Gas Turbine Systems, Antalya, Turkey.
Devore, M. A., and Paauwe, C. S., 2009, “Turbine Airfoil With Improved Cooling,” U.S. Patent No. 7,600,966, B2.
Liang, G., 2010, “Blade for a Gas Turbine,” U.S. Patent No. 7,819,629, B2.
Campbell, C. X., and Morrison, J. A., 2012, “Turbine Airfoil With a Compliant Outer Wall,” U.S. Patent No. 8,147,196, B2.
Liang, G., 2011, “Light Weight and Highly Cooled Turbine Blade,” U.S. Patent No. 8,057,183, B1.
Sweeney, P. C., and Rhodes, J. P., 1999, “An Infrared Technique for Evaluating Turbine Airfoil Cooling Designs,” ASME J. Turbomach., 122(1), pp. 170–177. [CrossRef]
Amano, R. S., and Sunden, B., 2008, Thermal Engineering in Power Systems, WIT Press, Southampton, UK, pp. 199–223.
Battisti, L., Cerri, G., and Fedrizzi, R., 2006, “Novel Technology for Gas Turbine Blade Effusion Cooling,” ASME Turbo Expo, Paper No. GT2006-90516. [CrossRef]
Bunker, R. S., Bailey, J. C., Lee, C. P., and Stevens, C. W., 2004, “In-Wall Network(Mesh) Cooling Augmentation of Gas Turbine Airfoils,” ASME, Paper No. GT2004-54260. [CrossRef]
Cunha, F. J., and Abdel-Messeh, W., 2006, “Microcircuit Cooling With an Aspect Ratio of Unity,” U.S. Patent No. 8,177,506 B2.
Ganmol, P., Chyu, M. K., Chi, X., Shih, T. I. P., and Alvin, M. A., 2010, “Effects of 90-Degree Jet Inlet on Heat Transfer From Staggered Pin-Fin Arrays,” Proceedings of the ASME ATI-UIT 2010 Conference on Thermal and Environmental, Italy.
Goldstein, R. J., ed., 2001, Heat Transfer in Gas Turbine Systems, Annals of the New York Academy of Sciences, New York.
Dunn, D. G., 2001, “Convection Heat Transfer and Aerodynamics in Axial Flow Turbines,” ASME J. Turbomach., 123(4), pp. 637–686. [CrossRef]
Han, J. C., Dutta, S., and Ekkad, S. V., 2000, Gas Turbine Heat Transfer and Cooling Technology, Taylor and Francis, New York.
Han, J. C., and Chen, H. C., 2006, “Turbine Blade Internal Cooling Passages With Rib Turbulators,” J. Propul. Power, 22(2), pp. 226–248. [CrossRef]
Taslim, M. E., and Wadsworth, C. M., 1997, “An Experimental Investigation of the Rib Surface-Averaged Heat Transfer Coefficient in a Rib-Roughened Square Passage,” ASME J. Turbomach., 119(2), pp. 381–389. [CrossRef]
Taslim, M. E., and Lengkong, A., 1998, “45-Degree Round-Corner Rib Heat Transfer Coefficient Measurements in a Square Channel,” ASME Paper No. 98-GT-176.
Taslim, M. E., and Lengkong, A., 1998, “45 deg Staggered Rib Heat Transfer Coefficient Measurements in a Square Channel,” ASME J. Turbomach., 120(3), pp. 571–580. [CrossRef]
Wright, L. M., Fu, W. L., and Han, J. C., 2004, “Thermal Performance of Angled, V-Shaped, and W-Shaped Rib Turbulators in Rotating Rectangular Cooling Channels (AR=4:1),” ASME, Paper No. GT2004-54073. [CrossRef]
Alkhamis, N. Y., Rallabandi, A. P., and Han, J. C., 2011, “Heat Transfer and Pressure Drop Correlations for Square Channels With V-Shaped Ribs at High Reynolds Numbers,” ASME J. Heat Transfer, 133(11), p. 111901. [CrossRef]
Lau, S. C., Kukreja, R. T., and McMillin, R. D., 1991, “Effects of V-shaped Rib Arrays on Turbulent Heat Transfer and Friction of Fully Developed Flow in a Square Channel,” Int. J. Heat Mass Transfer, 34, pp. 1605–1616. [CrossRef]
Taslim, M. E., Li, T., and Kercher, D. M., 1996, “Darryl E. Metzger Memorial Session Paper: Experimental Heat Transfer and Friction in Channels Roughened With Angled, V-Shaped, and Discrete Ribs on Two Opposite Walls,” ASME J. Turbomach., 118(1), pp. 20–28. [CrossRef]
Gao, X., and Suden, B., 2001, “Heat Transfer and Pressure Drop Measurements in Rib-Roughened Rectangular Ducts,” Exp. Therm. Fluid Sci., 24, pp. 25–34. [CrossRef]
Rhee, D. H., Lee, D. H., Cho, H. H., and Moon, H. K., 2003, “Effects of Duct Aspect Ratios on Heat/Mass Transfer With Discrete V-Shaped Ribs,” ASME, Paper No. GT2003-38622. [CrossRef]
Lockett, J. F., and Collins, M. W., 1990, “Holographic Interferometry Applied to Rib-Roughness Heat Transfer in Turbulent Flow,” Int. J. Heat Mass Transfer, 33(11), pp. 2439–2449. [CrossRef]
Han, J. C., Glicksman, L. R., and Rohsenow, W. M., 1978, “An Investigation of Heat Transfer and Friction for Rib-Roughened Surfaces,” Int. J. Heat Mass Transfer, 21(8), pp. 1143–1156. [CrossRef]
Chandra, P. R., Fontenot, M. L., and Han, J. C., 1998, “Effect of Rib Profiles on Turbulent Channel Flow Heat Transfer,” AIAA J. Thermophys. Heat Transfer, 12(1), pp. 116–118. [CrossRef]
Ahn, S. W., 2001, “The Effect of Roughness Type on Friction Factors and Heat Transfer in Roughened Rectangular Duct,” Int. Commun. Heat Mass Transfer, 28(7), pp. 933–942. [CrossRef]
Wang, L., and Sunden, B., 2007, “Experimental Investigation of Local Heat Transfer in a Square Duct With Various-Shaped Ribs,” Heat Mass Transfer, 43, pp. 759–766. [CrossRef]
Lei, J. L., Li, S. J., Han, J. C., Zhang, L. Z., and Moon, H. K., 2012, “Heat Transfer in Rotating Multi-Pass Rectangular Ribbed Channel With and Without a Turning Vane,” ASME Paper No. GT2012-69139.
Colletti, F., Cresci, I., and Arts, T., 2012, “Time-Resolved PIV Measurements of Turbulent Flow in Rotating Rib-Roughened Channel With Coriolis and Boundary Forces,” ASME Paper No. GT2012-69406.
Lei, J., Han, J. C., and Huh, M., 2011, “Effects of Rib Spacing on Heat Transfer in a Two Pass Rectangular Channel (AR = 2:1) at High Rotation Numbers,” ASME, Paper No. GT2011-45926. [CrossRef]
Schroll, M., Lange, L., and Elfert, M., 2011, “Investigation of the Effect of Rotation on the Flow in a Two-Pass Cooling System With Smooth and Ribbed Walls Using PIV,” ASME, Paper No. GT2011-46427. [CrossRef]
Armstrong, J., and Winstanley, D., 1987, “A Review of Staggered Array Pin Fin Heat Transfer for Turbine Cooling Applications,” ASME Paper No. 87-GT-201.
Park, J. S., Kim, K. M., Lee, D. H., Cho, H. H., and Chyu, M. K., 2008, “Heat Transfer on Rotating Channel With Various Height of Pin-Fin,” ASME, Paper No. GT2008-50783. [CrossRef]
Chyu, M. K., Siw, S., and Moon, H. K., 2009, “Effects of Height-to-Diameter Ratio of Pin Element on Heat Transfer From Staggered Pin-Fin Arrays,” ASME, Paper No. GT2009-59814. [CrossRef]
Chyu, M. K., Yen, C. H., and Siw, S., 2007, “Comparison of Heat Transfer From Staggered Pin Fin Arrays With Circular, Cubic and Diamond Shaped Elements,” ASME Turbo Expo, Paper No. GT2007-28306. [CrossRef]
Chang, S. W., Liou, T. M., and Lee, T. H., 2012, “Heat Transfer of Rotating Rectangular Channel With Diamond Shaped Pin-Fin Array at High Rotation Number,” ASME Paper No. GT2012-68676.
Siw, S. C., Chyu, M. K., and Alvin, M. A., 2012, “Heat Transfer Enhancement of Internal Cooling Passage With Triangular and Semi-Circular Shaped Pin-Fin Arrays,” ASME Turbo Expo, Paper No. GT2012-69266.
Metzger, D. E., and Haley, S. W., 1982, “Heat Transfer Experiments and Flow Visualization for Arrays of Short Pin Fins,” ASME Paper No. 82-GT-138.
Simoneau, R. J., and VanFossen, G. J., Jr., 1984, “Effect of Location in an Array on Heat Transfer to a Short Cylinder in Crossflow,” ASME J. Heat Transfer, 106(1), pp. 42–48. [CrossRef]
Ames, F. E., Dvorak, L. A., and Morrow, M. J., 2005, “Turbulent Augmentation of Internal Convection Over Pins in Staggered-Pin Fin Arrays,” ASME J. Turbumach., 127(1), pp. 183–190. [CrossRef]
Ostanek, J. K., and Thole, K. A., 2012, “Effects of Varying Streamwise and Spanwise Spacing in Pin-Fin Arrays,” ASME Paper No. GT2012-68127.
Nagoga, G. P., 1996, Effective Methods of Cooling Blades of High Temperature Gas Turbines, Moscow Aerospace Institute, Moscow, Russia.
Bunker, R. S., and Donnellan, K. F., 2003, “Heat Transfer and Friction Factors for Flows Inside Circular Tubes With Concavity Surfaces,” ASME J. Turbomach, 125(4), pp. 665–672. [CrossRef]
Kim, Y. W., Arellano, L., Vardakas, M., Moon, H. K., and Smith, K. O., 2003, “Comparison of Trip-Strip/Impingement/Dimple Cooling Concepts at High Reynolds Numbers,” ASME, Paper No. GT2003-38935. [CrossRef]
Moon, H. K., O'Connell, T., and Glezer, B., 2000, “Channel Height Effect on Heat Transfer and Friction in a Dimpled Passage,” ASME J. Eng. Gas Turbines Power, 122(2), pp. 307–313. [CrossRef]
Lin, Y. L., Shih, T. I.-P., and Chyu, M. K., 1999, “Computations of Flow and Heat Transfer in a Channel With Rows of Hemispherical Cavities,” ASME Paper No. 99-GT-263.
Mahmood, G. I., Hill, M. L., Nelson, D. L., Ligrani, P. M., Moon, H. K., and Glezer, B., 2001, “Local Heat Transfer and Flow Structure on and Above a Dimpled Surface in a Channel,” ASME J. Turbomach., 123(1), pp. 115–123. [CrossRef]
Mahmood, G. I., and Ligrani, P. M., 2002, “Heat Transfer in a Dimpled Channel: Combined Influences of Aspect Ratio, Temperature Ratio, Reynolds Number, and Flow Structure,” Int. J. Heat Mass Transfer, 45, pp. 2011–2020. [CrossRef]
Burgess, N. K., Oliveira, M. M., and Ligrani, P. M., 2003, “Nusselt Number Behavior on Deep Dimpled Surfaces Within a Channel,” ASME J. Heat Transfer, 125(1), pp. 11–18. [CrossRef]
Ligrani, P. M., Burgess, N. K., and Won, S. Y., 2004, “Nusselt Numbers and Flow Structure on and Above a Shallow Dimpled Surface Within a Channel Including Effects of Inlet Turbulence Intensity Level,” ASME, Paper No. GT2004-54231. [CrossRef]
Griffith, T. S., Al-Hadhrami, L., and Han, J. C., 2003, “Heat Transfer in Rotating Rectangular Cooling Channels (AR=4) With Dimples,” ASME J. Turbomach., 125, pp. 555–564. [CrossRef]
Chyu, M. K., Yu, Y., and Ding, H., 1999, “Heat Transfer Enhancement in Rectangular Channels With Concavities,” J. Enhanced Heat Transfer, 6, pp. 429–439.
Zhou, F., and Acharya, S., 2009, “Experimental and Computational Study of Heat/Mass Transfer and Flow Structure for Four Dimple Shapes in a Square Internal Passage,” ASME, Paper No. GT2009-60240. [CrossRef]
Jordan, C. N., and Wright, L. M., 2011, “Heat Transfer Enhancement in a Rectangular (AR=3:1) Channel With V-Shaped Dimples,” ASME, Paper No. GT2011-46128. [CrossRef]
Nakamata, C., 2009, “Internal Cooling Structure for Hot Section Components,” Japanese Patent Application No. 2009-167860.
Bunker, R. S., Bailey, J. C., and Lee, C. P., 2007, “Hot Gas Path Component With Mesh and Dimpled Cooling,” U.S. Patent No. 7,186,084 B2.
Murata, A., Nishida, S., Saito, H., Iwamoto, K., Okita, Y., and Nakamata, C., 2011, “Heat Transfer Enhancement Due to Combination of Dimples, Protrusions, and Ribs in Narrow Internal Passage of Gas Turbine Blade,” ASME, Paper No. GT2011-45356. [CrossRef]
Lan, J. B., Xie, Y. H., and Zhang, D., 2011, “Heat Transfer Enhancement in a Rectangular Channel With the Combination of Ribs, Dimples and Protrusions,” ASME, Paper No. GT2011-46031. [CrossRef]
Rao, Y., Wan, C., and Zhang, S. S., 2010, “Comparisons of Flow Friction and Heat Transfer Performance in Rectangular Channels With Pin Fin-Dimple, Pin Fin and Dimple Arrays,” ASME, Paper No. GT2010-22442. [CrossRef]
Siw, S. C., Chyu, M. K., and Alvin, M. A., 2011, “Effects of Pin Detached Space on Heat Transfer in a Rib Roughened Channel,” ASME, Paper No. GT2011-46078. [CrossRef]
Siw, S. C., Chyu, M. K., and Alvin, M. A., 2012, “Investigation of Heat Transfer Enhancement and Pressure Characteristics of Zig-Zag Channels,” ASME Paper No. GT2012-9268.
Siw, S. C., Chyu, M. K., and Alvin, M. A., 2013, “Heat Transfer and Pressure Loss Characteristics of Zig-Zag Channel With Rib-Turbulators,” ASME Paper No. GT2013-95407 (submitted).

Figures

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Fig. 1

Projected coal-gas turbine operating parameters [2-4]

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Fig. 2

Schematic of typical gas turbine airfoil with common cooling techniques [6]

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Fig. 3

Airfoil with double-wall cooling [8-11]

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Fig. 4

Generic Lamilloy® cooling [12]

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Fig. 5

Durability map illustrating the path for higher cooling effectiveness [16]

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Fig. 6

Local heat transfer coefficient (W/m2-K) and CFD simulated streakline in a double-wall cooling channel, channel's Reynolds number = 8000 [17]

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Fig. 7

Rib-turbulators for internal cooling passages in turbine airfoil [21]

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Fig. 8

Local heat transfer coefficient distribution with diamond shaped pin-fins [44]

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Fig. 9

Top view of test plate with different pin-fin configurations

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Fig. 10

Local heat transfer coefficient distribution (case 1)

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Fig. 11

Endwall heat transfer enhancement versus Re

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Fig. 12

Total heat transfer enhancement versus Re

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Fig. 13

Different dimple geometries [60-62]

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Fig. 14

Heat transfer enhancement versus Re with dimples

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Fig. 15

Innovative cooling configurations with mesh and dimple [64]

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Fig. 16

Schematic layout of detached pin-fin with broken rib and full rib

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Fig. 17

Local heat transfer coefficient, h (W/m2-K) distribution for endwall and pin-fins [68]

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Fig. 18

Total heat transfer enhancement of detached pin-fins with broken rib and full rib [68]

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Fig. 19

Heat transfer enhancement of pin-fins with dimples and rib-turbulators

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Fig. 20

Zig-zag channel with different surface configuration [70]

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Fig. 21

Local heat transfer coefficient of smooth zig-zag channel [69]

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Fig. 22

Local heat transfer coefficient of rib-turbulated zig-zag channel [70]

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Fig. 23

Total heat transfer enhancement versus Re (zig-zag channel) [70]

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Fig. 24

Pressure loss versus Re (zig-zag channel) [70]

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