International Scientific Journal

Authors of this Paper

External Links


According to the geometry and the state parameters, a single channel model of a supercritical CO2 radial-inflow turbine is established. The finite volume method, the finite element method, and the shear stress transport turbulence model are used for solid-fluid interaction. In 3-D finite element analysis, the results of flow analysis and thermal analysis are adopted to obtain the stress distribution of the impeller in working condition. The results show that the maximum equivalent stress of the impeller is 550 MPa, which is located at the blade root of trailing edge and lower than the yield limit. Meanwhile, the centrifugal load increases the stress level on the inside back end surface and the surface of the blade root. The aerodynamic load causes obvious stress concentration at the blade root of the trailing edge and increases the stress level in the downstream position of the impeller. The thermal load increases the stress level on the outside edge of the back-end surface and the surface near the blade root of the leading edge.
PAPER REVISED: 2017-05-01
PAPER ACCEPTED: 2017-05-18
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2017, VOLUME 21, ISSUE Supplement 1, PAGES [S251 - S258]
  1. Deng, Q. H., et al., Study on Performances of Supercritical CO2 Recompression Brayton, Applied Thermal Engineering, 114 (2017), Mar., pp. 1335-1342
  2. Dostal, V., et al., High-Performance Supercritical Carbon Dioxide Cycle for Next-Generation Nuclear Reactors, Nucl. Technol, 154 (2006), 3, pp.265-282
  3. Fang, H. Z., Application of High Efficiency Radial Inflow Steam Turbines in Cogeneration (in Chinese), Power Engineering, 95 (1991), 4, pp. 38-42
  4. Li, T. Q., Numerical Research on the Periodic Finite Element Strength and Vibration of the Radial-flow Impeller (in Chinese), Turbine Technology, 58 (2016), 2, pp. 109-113
  5. Ramamuri, V., Balasubraminian, P., Steady State Stress Analysis of Centrifugal Fan Impellers, Computers & Structures, 25 (1987), 1, pp. 21-24
  6. Hamed, A., et al., Stress Analysis Study in Cooled Radial Inflow Turbine, J.Aircraft, 15 (1978), Jan., pp. 803-804
  7. Zheng, X. Q., Ding, C., Effect of Temperature and Pressure on Stress of Impeller in Axial-Centrifugal Combined Compressor, Advances in Mechanical Engineering, 8 (2016), 6, pp. 1-11
  8. Zhang, H., et al., Analysis and Engineering Examples of Fluid Solid Interaction in ANSYS (in Chinese), China Water & Power Press, Beijing, 2012
  9. Andrew, H., et al., Dynamic Stress Prediction in Centrifugal Compressor Blades Using Fluid Structure Interaction, Proceedings, ASME Turbo Expo 2012: Power for Land, Sea and Air GT2012. Vol, GT2012- 69933, Copenhagen, Denmark, 2012
  10. Li, Y. M., et al., Handbook of Metallic Materials for Thermal Power Plants (in Chinese), China Electric Power Press, Beijing, 2000
  11. Redlich, O., Kwong, J. N. S., On the Thermodynamics of Solutions. V. An Equation of State. Fugacities of Gaseous Solutions, Chemical Reviews, 44 (1949), 1, pp. 233-244
  12. Kim, S. G., et al., CFD Investigation of a Centrifugal Compressor Derived from Pump Technology for Supercritical Carbon Dioxide as a Working Fluid, Journal of Supercritical Fluids, 86 (2014), 1, pp. 160-171
  13. Menter, F. R., Two-Equation Eddy-Viscosity Turbulence Models for Engineering Applications, AIAA Journal, 32 (1994) 8, pp. 1598-1605
  14. YANG, J. G., Wu, H., Explicit Coupled Solution of Two-Equation k-ω SST Turbulence Model and Its Application in Turbomachinery Flow Simulation (in Chinese), Acta Aeronautica et Astronautica Sinica, 35 (2014), 1, pp. 116-124
  15. Zheng, X. Q., et al., Effect of Temperature on the Strength of a Centrifugal Compressor Impeller for a Turbocharger. Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 277 (2012), 5, pp. 1-9

© 2017 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, 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