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Performance predicting modeling of axial-flow compressor at design and off-design conditions

Madadi, A ; Sharif University of Technology | 2008

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  1. Type of Document: Article
  2. DOI: 10.1115/GT2008-50550
  3. Publisher: 2008
  4. Abstract:
  5. Axial flow compressor is one of the most important parts of gas turbine units. Therefore, its design and performance prediction are very important. One-dimensional modeling is a simple, fast and accurate method for performance prediction of any type of compressors with different geometries. In this approach, inlet flow conditions and compressor geometry are known and by considering various compressor losses, velocity triangles at rotor, and stator inlets and outlets are determined, and then compressor performance characteristics are predicted. Numerous models have been developed theoretically and experimentally for estimating various types of compressor losses. In present work, performance characteristics of the axial-flow compressor are predicted based on one-dimensional modeling approach. In this work, models of Lieblein, KochSmith, Herrig, Johnsen-Bullock, Pollard-Gostelow, Aungier, Hunter-Cumpsty Reneau are implemented to consider compressor losses, incidence angles, deviation angles, stall and surge conditions. The model results are compared with experimental data to validate the model. This model can be used for various types of single stage axial-flow compressors with different geometries, as well as multistage axial-flow compressors. Copyright © 2008 by ASME
  6. Keywords:
  7. Axial-flow compressor ; Compressor geometry ; Compressor performance ; Deviation angles ; Different geometry ; Experimental data ; Gas-turbine units ; Incidence angles ; Inlet flow ; Model results ; Numerous models ; Off design condition ; One-dimensional modeling ; Performance characteristics ; Performance prediction ; Single stage ; Axial flow ; Axial flow turbomachinery ; Gas turbines ; Geometry ; Compressors
  8. Source: Proceedings of the ASME Turbo Expo, 9 June 2008 through 13 June 2008, Berlin ; Volume 6, Issue PART A , 2008 , Pages 317-324 ; 9780791843161 (ISBN)
  9. URL: https://asmedigitalcollection.asme.org/GT/proceedings-abstract/GT2008/43161/317/334452