Centrifugal compressors for gas industry consume huge amount of energy. As a rule, they are single-shaft, with two or more stages and with comparatively low pressure ratio. Compressors operate at low Mach numbers and high Reynolds numbers. Two design parameters influence mostly stage performances. Stage flow coefficient optimal values lie in range 0.060–0.11. Chosen number of stages establishes value of this coefficient if speed of a rotor rotation is fixed. Design loading factor optimal values are 0.42–0.52. It corresponds to high efficiency, shifts a surge limit far from a design point and makes power maximal in a design point. Some considerations about impeller and diffuser types are presented. Design procedure consists on application of the Universal modeling programs for main dimensions optimization and performance calculations. Q3D non-viscid velocity diagrams are analyzed for optimization of blade configuration. Samples of design are presented, 32 MW single-stage pipeline compressor stage with record efficiency included.
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ASME 2015 Gas Turbine India Conference
December 2–3, 2015
Hyderabad, India
Conference Sponsors:
- International Gas Turbine Institute
ISBN:
978-0-7918-5731-1
PROCEEDINGS PAPER
Gas Dynamic Designs of Centrifugal Compressors for Gas Industry Available to Purchase
Y. Galerkin,
Y. Galerkin
Peter the Great St. Petersburg Polytechnic University, St. Petersburg, Russia
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A. Rekstin,
A. Rekstin
Peter the Great St. Petersburg Polytechnic University, St. Petersburg, Russia
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K. Soldatova,
K. Soldatova
Peter the Great St. Petersburg Polytechnic University, St. Petersburg, Russia
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A. Drozdov
A. Drozdov
Peter the Great St. Petersburg Polytechnic University, St. Petersburg, Russia
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Y. Galerkin
Peter the Great St. Petersburg Polytechnic University, St. Petersburg, Russia
A. Rekstin
Peter the Great St. Petersburg Polytechnic University, St. Petersburg, Russia
K. Soldatova
Peter the Great St. Petersburg Polytechnic University, St. Petersburg, Russia
A. Drozdov
Peter the Great St. Petersburg Polytechnic University, St. Petersburg, Russia
Paper No:
GTINDIA2015-1215, V001T01A007; 8 pages
Published Online:
February 10, 2016
Citation
Galerkin, Y, Rekstin, A, Soldatova, K, & Drozdov, A. "Gas Dynamic Designs of Centrifugal Compressors for Gas Industry." Proceedings of the ASME 2015 Gas Turbine India Conference. ASME 2015 Gas Turbine India Conference. Hyderabad, India. December 2–3, 2015. V001T01A007. ASME. https://doi.org/10.1115/GTINDIA2015-1215
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