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A New Optimization Method for Centrifugal Compressors Based on 1D Calculations and Analyses

Author

Listed:
  • Pei-Yuan Li

    (Department of Thermal Engineering, Tsinghua University, Beijing 100084, China)

  • Chu-Wei Gu

    (Department of Thermal Engineering, Tsinghua University, Beijing 100084, China)

  • Yin Song

    (Department of Thermal Engineering, Tsinghua University, Beijing 100084, China)

Abstract

This paper presents an optimization design method for centrifugal compressors based on one-dimensional calculations and analyses. It consists of two parts: (1) centrifugal compressor geometry optimization based on one-dimensional calculations and (2) matching optimization of the vaned diffuser with an impeller based on the required throat area. A low pressure stage centrifugal compressor in a MW level gas turbine is optimized by this method. One-dimensional calculation results show that D3/D2 is too large in the original design, resulting in the low efficiency of the entire stage. Based on the one-dimensional optimization results, the geometry of the diffuser has been redesigned. The outlet diameter of the vaneless diffuser has been reduced, and the original single stage diffuser has been replaced by a tandem vaned diffuser. After optimization, the entire stage pressure ratio is increased by approximately 4%, and the efficiency is increased by approximately 2%.

Suggested Citation

  • Pei-Yuan Li & Chu-Wei Gu & Yin Song, 2015. "A New Optimization Method for Centrifugal Compressors Based on 1D Calculations and Analyses," Energies, MDPI, vol. 8(5), pages 1-18, May.
    • Handle: RePEc:gam:jeners:v:8:y:2015:i:5:p:4317-4334:d:49431
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    Citations

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    Cited by:

    1. Marco Bicchi & Michele Marconcini & Ernani Fulvio Bellobuono & Elisabetta Belardini & Lorenzo Toni & Andrea Arnone, 2023. "Multi-Point Surrogate-Based Approach for Assessing Impacts of Geometric Variations on Centrifugal Compressor Performance," Energies, MDPI, vol. 16(4), pages 1-21, February.
    2. Nima Khoshkalam & Mohammad Mojaddam & Keith R. Pullen, 2019. "Characterization of the Performance of a Turbocharger Centrifugal Compressor by Component Loss Contributions," Energies, MDPI, vol. 12(14), pages 1-21, July.
    3. He, Yang & Chen, Haisheng & Xu, Yujie & Deng, Jianqiang, 2018. "Compression performance optimization considering variable charge pressure in an adiabatic compressed air energy storage system," Energy, Elsevier, vol. 165(PB), pages 349-359.
    4. Meroni, Andrea & Zühlsdorf, Benjamin & Elmegaard, Brian & Haglind, Fredrik, 2018. "Design of centrifugal compressors for heat pump systems," Applied Energy, Elsevier, vol. 232(C), pages 139-156.
    5. Mohsen Ebrahimi & Qiangqiang Huang & Xiao He & Xinqian Zheng, 2017. "Effects of Variable Diffuser Vanes on Performance of a Centrifugal Compressor with Pressure Ratio of 8.0," Energies, MDPI, vol. 10(5), pages 1-15, May.

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