THERMAL SCIENCE

International Scientific Journal

T. Micha Prem Kumar

,

N. Alagumurthi

,

K. Palaniradja

CONJUGATED HEAT TRANSFER ANALYSIS OF GAS TURBINE VANES USING MACCORMACK'S TECHNIQUE

ABSTRACT
It is well known that turbine engine efficiency can be improved by increasing the turbine inlet gas temperature. This causes an increase of heat load to the turbine components. Current inlet temperature level in advanced gas turbine is far above the melting point of the vane material. Therefore, along with high temperature material development, sophisticated cooling scheme must be developed for continuous safe operation of gas turbine with high performance. Gas turbine blades are cooled internally and externally. Internal cooling is achieved by passing the coolant through passages inside the blade and extracting the heat from outside of the blade. This paper focuses on turbine vanes internal cooling. The effect of arrangement of rib and parabolic fin turbulator in the internal cooling channel and numerical investigation of temperature distribution along the vane material has been presented. The formulations for the internal cooling for the turbine vane have been done and these formulated equations are solved by MacCormack's technique.
KEYWORDS
internal cooling, turbine vanes, conjugate heat transfer, MacCormack's technique, parabolic fin turbulator
PAPER SUBMITTED: 2007-01-21
PAPER REVISED: 2008-01-11
PAPER ACCEPTED: 2008-03-05
DOI REFERENCE: https://doi.org/10.2298/TSCI0803065K
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2008, VOLUME 12, ISSUE Issue 3, PAGES [65 - 73]
REFERENCES
  1. Zhang, Y. M., Gu, W. Z., Han, J.-C., Heat Transfer and Friction in Rectangular Channel with Ribbed or Ribbed-Grooved Walls, ASME Journal of Heat Transfer, 116 (1994), pp. 58-65
  2. Tiwari, S., Diswas, G., Numerical Prediction of Flow and Heat Transfer In a Rectangular Channel with a Build-In Circular Tube, ASME Journal of Heat Transfer, 125 (2003), pp. 413-421
  3. Han, J.-C., Dutta, S., Recent Developments in Turbine Blade Internal Cooling, Texas A&M University, College Station, Tex., USA
  4. Carlson, K. D., Chen, C. J., Conjugate Heat Transfer on Complex Geometries with Diagonal Cartesian Method, Part I: Methods, ASME Journal of Heat Transfer, 121 (1999), pp. 253-260
  5. Metzger, D. E., Berry, R. A., Bronson., J. P., Developing Heat Transfer in Rectangular Ducts with Staggered Arrays of Short Pin Fins, ASME Journal of Heat Transfer, 104 (1982), pp. 700-706
  6. Han, J.-C., Park, J. S., Developing Heat Transfer in Rectangular Channel with Rib Turbulators, Int. J. Heat and Mass Transfer, 31 (1988), 1, pp. 183-195
  7. Jang, Y.-J., Chen, H.-C., Han, J.-C., Computation of Flow and Heat Transfer in Two-Pass Channels with 60 deg Ribs, ASME Journal of Heat Transfer, 123 (2001), pp. 563-575
  8. Gee, D. L., Webb, R. L., Forced Convection Heat Transfer in Helically Rib- Roughened Tubes, Int. J. Heat and Mass Transfer, 23 (1980), 8, pp. 1127-1136
  9. Sethumadhavan, R., Raja Rao, M., Turbulent Flow Heat Transfer and Fluid Friction in Helical-Wire-Coil-Inserted Tubes, Int. J. Heat and Mass Transfer, 26 (1983), 12, pp. 1833-1844
  10. Prakash, C., Zerkle, R., Prediction of Turbulent Flow and Heat Transfer in a Ribbed Rectangular Duct with and without Rotation, ASME J. of Turbomachinery, 177 (1995), 2, pp. 255-264
  11. Anderson, Jr., D. J., Computational Fluid Dynamics: The Basics with Applications, International Edition 1995, McGraw-Hill Inc., New York, USA, p. 222
  12. Incropera, P. F., Dewitt, P. D., Fundamental of Heat and Mass Transfer, John Wiley and Sons, 5th ed., 1996, pp. 196-202
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Conjugated heat transfer analysis of gas turbine vanes using MacCormack's technique

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence