Library Subscription: Guest
International Journal of Energy for a Clean Environment

Published 8 issues per year

ISSN Print: 2150-3621

ISSN Online: 2150-363X

SJR: 0.597 SNIP: 1.456 CiteScore™:: 3.7 H-Index: 18

Indexed in

STUDY ON HEAT TRANSFER ENHANCEMENT OF GAS TURBINE BLADES

Volume 21, Issue 2, 2020, pp. 91-106
DOI: 10.1615/InterJEnerCleanEnv.2020033628
Get accessGet access

ABSTRACT

It is crucial to perform high thermal efficiency in a gas turbine. Increasing the inlet temperature in the combustor is the way to achieve this goal for a gas turbine. Nonetheless, increasing the heat causes a significant difference in the temperature gradient within the blade material, thus resulting in thermal stresses. These effects must be reduced to achieve higher thermal efficiency. The two-pass cooling channels have been studied due to their performance in heat transfer. The dimpled surface on a pass wall cooling technology gets popular in recent years as it shows a low-pressure loss penalty. It is also advantageous to the turbine stages where lower pressure cooling is employed. This study is going to investigate turbulent flow and heat transfer in a two-pass duct. The duct is represented by small cooling channels drilled inside modern gas turbine blades to assist with the heat removal from the hot surfaces of the blade. The modeled channel in this study has a square cross section with a size of 50.8 mm, and the first and second passage lengths of 514 mm and 440 mm, respectively. The dimples are imprinted in the bottom wall of the channel with a depth of 10 mm. Also, results are compared with the elimination of the bend crossflow feed system. The two passes are connected with each other by three cylindrical holes along a partition wall. The airflow rate is set such that the maximum Reynolds number of 25,000 can be achieved. Several computational fluid dynamics simulations are carried out to understand the effect of the dimples on flow and heat transfer in channels with and without bend under various operating conditions. The results show that a dimpled cooling path is more advantageous than the smooth wall channel, and by eliminating bend, a higher heat transfer is achieved without affecting the first pass heat transfer enhancement.

REFERENCES
  1. Afanasyev, V.N., Chudnovsky, Y.P., Leontiev, A.I., and Roganov, P.S., Turbulent Flow Friction and Heat Transfer Characteristics for Spherical Cavities on a Flat Plate, Exp. Therm. Fluid Sci., vol. 7, no. 1, pp. 1-8, 1993.

  2. Bergman, T.L., Incropera, F.P., DeWitt, D.P., and Lavine, A.S., Fundamentals of Heat and Mass Transfer, New York: John Wiley & Sons, 2011.

  3. Bunker, R.S. and Donnellan, K.F., Heat Transfer and Friction Factors for Flows inside Circular Tubes with Concavity Surfaces, J. Turbomach., vol. 125, no. 4, pp. 665-672, 2003.

  4. Burgess, N.K. and Ligrani, P.M., Effects of Dimple Depth on Channel Nusselt Numbers and Friction Factors, J. Heat Transf, vol. 127, no. 8, pp. 839-847, 2005.

  5. Choi, E.Y., Choi, Y.D., Lee, W.S., Chung, J.T., and Kwak, J.S., Heat Transfer Augmentation Using a Rib-Dimple Compound Cooling Technique, Appl. Therm. Eng., vol. 51, nos. 1-2, pp. 435-441, 2013.

  6. Chyu, M.K., Regional Heat Transfer in Two-Pass and Three-Pass Passages with 180-deg Sharp Turns, J. Heat Transf., vol. 113, no. 1, pp. 63-70, 1991.

  7. Chyu, M.K., Yu, Y., Ding, H., Downs, J.P., and Soechting, F.O., Concavity Enhanced Heat Transfer in an Internal Cooling Passage, in ASME 1997 Int. Gas Turbine and Aeroengine Congress and Exhibition, American Society of Mechanical Engineers, ASME Paper No. 97-GT-437, 1997.

  8. Ekkad, S.V. and Han, J.C., Local Heat Transfer Distributions near a Sharp 180 Turn of a Two-Pass Smooth Square Channel Using a Transient Liquid Crystal Image Technique, J. Flow Visual. Image Proc., vol. 2, no. 3, pp. 285-297, 1995.

  9. Fan, C.S. and Metzger, D.E., Effects of Channel Aspect Ratio on Heat Transfer in Rectangular Passage Sharp 180-deg Turns, in 32nd Int. Gas Turbine Conference and Exhibition, 1987.

  10. Glezer, B., Moon, H.K., and O'Connell, T., A Novel Technique for the Internal Blade Cooling, in ASME 1996 Int. Gas Turbine and Aero-Engine Congress and Exhibition, American Society of Mechanical Engineers Digital Collection, 1996.

  11. Griffith, T.S., Al-Hadhrami, L., and Han, J.C., Heat Transfer in Rotating Rectangular Cooling Channels (AR = 4) with Dimples, in ASME Turbo Expo 2002: Power for Land, Sea, and Air, American Society of Mechanical Engineers, pp. 551-560, 2002.

  12. Kesarev, V.S. and Kozlov, A.P., Convective Heat Transfers in Turbulized Flow past a Hemispherical Cavity, Heat Transf. Res, vol. 25, no. 2, pp. 156-160, 1993.

  13. Kim, K.Y., Moon, M.A., and Kim, H.M., Shape Optimization of Inclined Elliptic Dimples in a Cooling Channel, J. Thermophys. Heat Transf., vol. 25, no. 3, pp. 472-476, 2011.

  14. Kondratiuk, V.A., Terekh, A.M., Rogachov, V.A., Baranyuk, A.V., and Rudenko, A.I., Analysis and Generalization of the Experimental Data on Heat Transfer in Staggered Bundles of Flat-Oval Tubes, Int. J. Energy Clean Environ., vol. 18, no. 3, pp. 189-202, 2017.

  15. Ligrani, P.M., Harrison, J.L., Mahmmod, G.I., and Hill, M.L., Flow Structure due to Dimple Depressions on a Channel Surface, Phys. Fluids, vol. 13, no. 11, pp. 3442-3451, 2001.

  16. Mahmood, G.I., Hill, M.L., Nelson, D.L., Ligrani, P.M., Moon, H.K., and Glezer, B., Local Heat Transfer and Flow Structure on and above a Dimpled Surface in a Channel, ASME J. Turbomach., vol. 123, no. 1, pp. 115-123, 2001.

  17. Moon, H.K., O'Connell, T., and Gletzer, B., Channel Height Effect on Heat Transfer and Friction in a Dimpled Passage, ASME J. Eng. Gas Turbine Power, vol. 122, no. 2, pp. 307-313, 2000.

  18. Moon, H.K., O'Connell, T., and Glezer, B., Heat Transfer Enhancement in a Circular Channel Using Lengthwise Continuous Tangential Injection, in International Heat Transfer Conference Digital Library, Begell House Inc., 1998.

  19. Nishida, S., Murata, A., Saito, H., and Iwamoto, K., Measurement of Heat and Fluid Flow on Surface with Teardrop-Shaped Dimples, in Proc. of the Asian Congress on Gas Turbines, vol. 2009-8, pp. 1-4, 2009.

  20. Pamula, G., Ekkad, S.V., and Acharya, S., Influence of Crossflow-Induced Swirl and Impingement on Heat Transfer in a Two-Pass Channel Connected by Two Rows of Holes, J. Turbomach., vol. 123, no. 2, pp. 281-287, 2000.

  21. Rao, Y., Feng, Y., Li, B., and Weigand, B., Experimental and Numerical Study of Heat Transfer and Flow Friction in Channels with Dimples of Different Shapes, J. Heat Transf., vol. 137, no. 3, p. 031901, 2015.

  22. Sangewar, R.K., Enhancement of Thermal Efficiency by Using Hemispherical Protrusions on Solar Air Heaters, Int. J. Energy Clean Environ., vol. 15, no. 1, pp. 19-33, 2014.

  23. Shen, Z., Qu, H., Zhang, D., and Xie, Y., Effect of Bleed Hole on Flow and Heat Transfer Performance of U-Shaped Channel with Dimple Structure, Int. J. Heat Mass Transf., vol. 66, pp. 10-22, 2013.

  24. Shoshe, M.A.M.S., Ahmed, R., and Sarkar, M.A.R., Heat Transfer Enhancement in Turbulent Flow through a Circular Tube with Various Arrangements of a Delta Winglet Vortex Generator, Int. J. Energy Clean Environ., vol. 16, nos. 1-4, pp. 197-207, 2015.

  25. Xie, G. and Sunden, B., Numerical Predictions of Augmented Heat Transfer of an Internal Blade Tip-Wall by Hemispherical Dimples, Int. J. Heat Mass Transf., vol. 53, nos. 25-26, pp. 5639-5650, 2010.

  26. Xie, G., Liu, J., Ligrani, P.M., and Zhang, W., Numerical Analysis of Flow Structure and Heat Transfer Characteristics in Square Channels with Different Internal-Protruded Dimple Geometrics, Int. J. Heat Mass Transf, vol. 67, pp. 81-97, 2013.

  27. Xie, G., Sunden, B., and Zhang, W., Comparisons of Pins/Dimples/Protrusions Cooling Concepts for a Turbine Blade Tip-Wall at High Reynolds Numbers, J. Heat Transf., vol. 133, no. 6, p. 061902, 2011.

CITED BY
  1. Nourin Farah Nazifa, Amano Ryoichi S., Review of Gas Turbine Internal Cooling Improvement Technology, Journal of Energy Resources Technology, 143, 8, 2021. Crossref

  2. Nourin Farah Nazifa, Amano Ryoichi S., Experimental and Large Eddy Simulation Study for Visualizing Complex Flow Phenomena of Gas Turbine Internal Blade Cooling Channel With No Bend, Journal of Energy Resources Technology, 144, 6, 2022. Crossref

  3. Abousabae Mohamed, Amano Ryoichi S., Air Flow Acceleration Effect on Water Droplet Flow Behavior in Solid Rocket Motor, Journal of Energy Resources Technology, 144, 8, 2022. Crossref

  4. Nourin Farah Nazifa, Amano Ryoichi S., Experimental Study on Flow Behavior and Heat Transfer Enhancement With Distinct Dimpled Gas Turbine Blade Internal Cooling Channel, Journal of Energy Resources Technology, 144, 7, 2022. Crossref

  5. Selim Osama M., Al Hamad Saif, Amano Ryoichi S., Experimental and Numerical Study on the Effect of Annular Combustor Design on Thermal Uniformity Jet in Crossflow, Journal of Energy Resources Technology, 144, 10, 2022. Crossref

  6. Nourin Farah Nazifa, Blum Brinn Leighton, Amano Ryoichi S., Evaluation of Heat Transfer Enhancement on Rotational Gas Turbine Blade Internal Cooling Channel With Dimpled Surface, Journal of Energy Resources Technology, 144, 11, 2022. Crossref

  7. Wu Zhuang, Zhu Hui-ren, Liu Cun-liang, Liu Xu-yang, Zhang Zheng, Investigation of the roughened target plate to enhance the impingement heat transfer with reduced pressure loss, Applied Thermal Engineering, 208, 2022. Crossref

  8. Nourin Farah Nazifa, Amano Ryoichi S., Heat Transfer Augmentation With Multiple Jet Impingement Cooling on Dimpled Surface for Gas Turbine Blades, Journal of Energy Resources Technology, 145, 2, 2023. Crossref

  9. Shetty Tushar , Manjunath M. S., EFFECT OF MODIFIED RECTANGULAR RIB ON THERMAL PERFORMANCE OF SOLAR AIR HEATER , International Journal of Energy for a Clean Environment, 23, 7, 2022. Crossref

  10. Kumar Ravindra , Mehta Ruchika, Rathore Himanshu , Kumar Manoj , EFFECT OF AXISYMMETRIC MIXED CONVECTION BOUNDARY LAYER FLOW AND HEAT TRANSMISSION OVER EXPONENTIALLY STRETCHING SHEET FIXED IN POROUS MEDIUM WITH HEAT SOURCE/SINK AND RADIATION EFFECT , International Journal of Energy for a Clean Environment, 23, 7, 2022. Crossref

  11. Abdelmaksoud Ramy, Wang Ting, RECENT ADVANCES IN HEAT TRANSFER APPLICATIONS USING SWEEPING JET FLUIDIC OSCILLATORS , International Journal of Energy for a Clean Environment, 24, 2, 2023. Crossref

  12. Nourin Farah Nazifa, Blum Brinn Leighton, Amano Ryoichi S., Exploring the Effects of Guide Vane on Dimpled Cooling Channel of Gas Turbine Blade, Journal of Energy Resources Technology, 145, 5, 2023. Crossref

Forthcoming Articles

APPLICATION OF MICROBIAL FUEL CELL FOR CASSAVA FERMENTATION WASTEWATER TREATMENT Anwar Ma'ruf, Agus Mulyadi Purnawanto, Latiful Hayat, Novi Astuti Experimental and regression analysis of C. I engine powered by diesel surrogate fuel from waste lubricating oil using microwave pyrolysis Mohammad Nematullah Nasim, Ravindra Babu Yarasu, Satish J. Suryawanshi PREFACE sachindra Rout, Kamalakanta Muduli, Jnana Ranjan Senapati, Aruna Kumar Behura Thermal analysis and Improvement of Municipal Solid Waste Syngas Combustion applied on Micro Gas Turbine Amornrat Kaewpradap, Sumrerng Jugjai Numerical simulation of turbulent flow in a heat exchanger equipped with fins of different materials and geometries Abin Roy, Uddala Sreekanth, Joel Ashirvadam, Saboor Shaik, Aruna Kumar Behura, Bibin B.S Low-Cost Photovoltaic Emulator With a High-Dynamic Response for Small Satellite Applications Mauricio Troviano, Germán G. Oggier Collection efficiency analysis and structure optimization of fugitive fumes from aluminum electrolysis based on multi-field coupling Shuichang Liu, Qingyu Wang, Yong Zhang, Fengzhao Mao, Huijuan Zhao, Xindan Hu Transient Analysis of Liquid Hydrogen Transfer in Cryogenic Storage Tanks Ahmad M. Mahmoud, William E Lear, SA Sherif Pure Ammonia Combustion in a Bidirectional Swirling Flow Alexander Igorevich Guryanov, Oleg A. Evdokimov, Vladimir Burtsev, Nikita Burtsev, Sergey Veretennikov, Valeriy Koshkin CFD modeling of the combustion of Ukrainian coal and biomass in a flare boiler unit TPP-210a Alexandr Baranyuk, Nataliya Dunayevska, Artur Rachinsky, Nikita Vorobyov, Petro Merenger, Evgeniy Shevel An Experimental Study of the Cooling Efficiency on Curved Surfaces with Different Shaped Holes Sergey Veretennikov, Oleg Evdokimov, Anna Kolesova Employing Granulated Bimetallic Nanocomposite of Ni/Cu@CuMOF Nanocomposite in Steam Reforming of Methanol Process for Hydrogen Production Mohammad Saleh-Abadi, Mohsen Rostami, Amir Hamzeh Farajollahi, Rasool Amirkhani, Mahdi Ebrahimi Farshchi, Mahdi Simiari INVESTIGATION THE PERFORMANCE OF AN EVACUATED TUBE SOLAR COLLECTOR FILLED WITH AL2O3/WATER NANOFLUID UNDER THE CLIMATE CONDITIONS OF AL-HILLA(IRAQ) Nagham Albakry, Ahmed Kadhim Hussein The effect of carbonization temperature on the properties of carbonaceous material obtained from ethylene-propylene-diene-monomer (EPDM) wastes Muhammet Ramazan Eren, Işıl Güneş, Esin Varol THE SOCIAL COST OF CARBON EVALUATION BASED ON CARBON CAPTURE AND STORAGE TECHNOLOGIES FOR POWER GENERATION PLANTS Okan Kon, Ismail Caner
Begell Digital Portal Begell Digital Library eBooks Journals References & Proceedings Research Collections Prices and Subscription Policies Begell House Contact Us Language English 中文 Русский Português German French Spain