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논문 상세정보

가스터빈 블레이드 끝단 형상에 따른 블레이드 끝단 및 그 주변에서의 열전달 계수 변화

Effect of Blade Tip Geometry on Heat Transfer Coefficients on Gas Turbine Blade Tips and Near Tip Regions

Abstract

Detailed heat transfer coefficient distributions an two. types of gas turbine blade tip, plane tip and squealer tip, were measured using a hue-detection base transient liquid crystals technique.. The heat transfer coefficients an the shroud and near tip regions of the pressure and suction sides af the blade were also. measured. The heat transfer measurements were taken at the three different tip gap clearances af 1.0%, 1.5%, and 2.5% of blade span. Results shaw the overall heat transfer coefficients on the tip and shroud with squealer tip blade were lower than those with plane tip blade. By using squealer tip, however, the reductions af heat transfer coefficients near the tip regions of the pressure and suction sides were nat remarkable.

저자의 다른 논문

참고문헌 (14)

  1. Bunker, R. S., Baily, J. C. and Ameri, A. A., 2000, 'Heat Transfer and Flow on the First Stage Blade Tip of a Power Generation Gas Turbine: Part 1: Experimental Results,' Trans. of ASME J. of Turbomachinery, 122, pp. 272-277 
  2. Bunker, R. S. and Baily, J. C., 2001, 'Effect of Squealer Cavity Depth and Oxidation on Turbine Blade Tip Heat Transfer,' ASME Paper No. 2001-GT-0155 
  3. Azad, GM S., Han, J. C., Teng, S. and Boyle, R., 2000, 'Heat Transfer and Pressure Distributions on a Gas Turbine Blade Tip,' Trans. of ASME J. of Turbomachinery, 122, pp. 717-724 
  4. Azad, GM S., Han, J. C. and Boyle, R., 2000, 'Heat Transfer and Pressure Distributions on the Squealer Tip of a Gas Turbine Blade,' Trans. of ASME J. of Turbomachinery, 122, pp. 725-732 
  5. Azad, GM S., Han, J. C., Bunker, R. S. and Lee, C. P., 2002, 'Effect of Squealer Geometry Arrangement On a Gas Turbine Blade Tip Heat Transfer,' Trans. of ASME J. of Heat Transfer, 124, pp. 452-459 
  6. Rhee, D. H., Choi, J. H. and Cho, H. H., 2001, 'Effect of Blade Tip Clearance on Turbine Shroud HeatlMass Transfer,' ASME Paper No. 2001-GT-0158 
  7. Jin, P. and Goldstein, R. J., 2002, 'Local Mass/Heat Transfer on a Turbine Blade Tip,' The 9th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, Honolulu, February 
  8. Jin, P. and Goldstein, R. J., 2002, 'Local Mass/Heat Transfer on Turbine Blade Near-Tip Surfaces,' ASME Paper No. GT2002-30556 
  9. Papa, M., Goldstein, R. J. and Gori, F., 2003, 'Effects of Tip Geometry and Tip Clearance on the Mass/Heat Transfer from a Large-Scale Gas Turbine Blade,' Trans. of ASME J. of Turbomachinery, Vol. 125, pp. 90-96 
  10. Acharya, S., Yang, H., Prakash, C. and Bunker, R., 2003, 'Numerical Study of Flow and Heat Transfer on a Blade Tip with Different Leakage Reduction Strategies,' ASME Paper No. GT2003-38617 
  11. Saxena, V. and Ekkad, S. V., 2004, 'Effect of Squealer Geometry on Tip Flow and Heat Transfer for a Turbine Blade in a Low Speed Cascade,' Trans. of ASME J. of heat transfer, Vol. 126, pp. 546-553 
  12. Yang, H., Chern, H. C. and Han, J. C., 2005, 'Flow and Heat Transfer Prediction on Turbine Rotor with Various Tip Configurations,' AIAA paper, No. 2005-573 
  13. Lee, D. H. and Cho, H. H., 2005, 'Heat/Mass Transfer Characteristics on Stationary Turbine Blade and Shroud in a Low Speed Annular Cascadei II ),' Trans. of the KSME B, Vol. 29, pp. 495-503 
  14. Kline, S. J. and McClintock, F. A., 1953, 'Describing Uncertainties in Single Sample Experiments,' Mechanical Engineering, Vol. 75, pp. 3-8 

이 논문을 인용한 문헌 (3)

  1. Rhee, Dong-Ho ; Cho, Hyung-Hee 2007. "Effect of Incidence Angle on Turbine Blade Heat Transfer Characteristics (II) - Blade Surface -" 大韓機械學會論文集. Transactions of the Korean Society of Mechanical Engineers. B. B, 31(4): 357~366 
  2. Cho, Jae-Ung ; Han, Moon-Sik 2011. "Study on Flow and Stress Analysis of Gas Turbine Blade" 한국기계가공학회지 = Journal of the Korean Society of Manufacturing Process Engineers, 10(3): 67~72 
  3. Kim, Dae Hyun ; Lee, Won Suk ; Chung, Jin Taek 2013. "Numerical Study of Aerodynamics of Turbine Rotor with Leading Edge Modification Near Hub" 大韓機械學會論文集. Transactions of the Korean Society of Mechanical Engineers. A. A, 37(8): 1007~1013 

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