Browse > Article
http://dx.doi.org/10.5139/JKSAS.2004.32.9.094

An Experimental Study of the Performance on a Rotating Turbine with Various incidences  

Cho, Chong-Hyun (경상대학교 항공공학과 대학원)
Cho, Soo-Yong (경상대학교 항공기부품기술연구센터)
Cho, Tae-Hwan (경상대학교 항공기부품기술연구센터)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.32, no.9, 2004 , pp. 94-102 More about this Journal
Abstract
An experimental study on a rotating turbine is conducted with various incidence angles in order to find an optimum incidence angle. The incidence angle is an important design parameter in turbine blade design. however, most of experiments were conducted in a linear or annual cascade row. The suggested incidence angles from the experiments conducted in cascade rows could be unsuitable as a design parameter in the design of rotating parts. In this study, various incidence angles are applied and the turbine performance is measured in a rotating state. Experimental results show that the incidence on the rotor has a great influence on the turbine efficiency. The range of applicable incidence becomes narrow when the turbine operates at high input power. In the case of the tested rotor, the optimum incidence is about $-12^{\circ}$.
Keywords
Incidence Angle; Axial-Type Turbine; Turbine Blade Angle; Turbine Performance Test;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Cofer, J. I., Reinher, J. K., and Summer, W. J., "Advances in Steam Path Technology," GER-3713D, 1993, pp.1-25.
2 Yamamoto, A. and Nouse, H., "Effects of Incidence on Three-Dimensional Flows in a Linear Turbine Cascade," J. of Turbomachinery, Vol.110, 1988, pp.486-495   DOI   ScienceOn
3 Molnar, V., Ridzon, F. and Sporina, T., "An Experimental Investigation of Secondary Flow in a Low Aspect Ratio Impulse Cascade at Different Inlet Flow Angles," 3rd European Conference on Turbomachinery Fluid Dynamics and Thermodynamics, 1999, C557/027/99.
4 Wilson, D. G. and Korakiaitis, T., "The Design of High-Efficiency Turbomachinery and Gas Turbines, Prentice Hall, 1998, pp.288-290.
5 Cohen, H., Rogers, G. F. C. and Saravanamuttoo, H. I. H., 1996, Gas Turbine Theory, Fourth Edition, Long Scientific & Technical, pp.293-296.
6 Perdichizzi, A. and Dossena, V., "Incidence Angle and Pitch-Chord Effects on Secondary Flows Downstream of a Turbine Cascade,", J. of Turbomachinery, Vo1.115, 1993, pp.383-391.   DOI   ScienceOn
7 Yoon, Y. S., Song, S. J., Kim, H. W. and Cho, S. H., "Axial Turbine Performance Evaluation in a Rotating Facility," J. of Fluid Machinery, Vol.4, No.3, 2001, pp.46-52.
8 Hodson, H. P. and Dominy, R. G., "The Off-Design Performance of a Low Pressure Turbine Cascade Passage," J. of Turbomachinery, Vo1.109, 1987, pp.201-209.   DOI   ScienceOn
9 김은종, 조수용, "터빈성능시험에서 측정변수의 불확도 파급에 관한 연구," 한국항공우주학회지, 제31권 제8호, 2003, pp.107-114.
10 Siverding, C. H., "Recent Progress in the Understanding of Basic Aspects of Secondary Flows in Turbine Blade Passage," J. of Engineering for Gas Turbine and Power, Vo1.107, 1985, pp.248-257.   DOI
11 Langston, L. S., Nice, M. L. and Hooper, R. M., "Three-Dimensional Flow Within a Turbine Cascade Passage," J. of Engineering for Power, Jan., 1977, pp.21-28.