Effect of diffuser vane shape on the performance of a centrifugal compressor stage

Reddy, T. Ch. Siva; Murty, G. V. Ramana; Prasad, M. V. S. S. S. M.

doi:10.1007/s11630-014-0686-6

Cited by 4 publications

(2 citation statements)

References 4 publications

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“…While the pressure ratios rose at low rotational speeds, they decreased at high rotational speeds. The diffuser designed with a width ratio of 0.854 performed better [14]. Experimental research on the impact of impeller width on the operation of lowsolidity vaned diffusers in centrifugal compressor stages was carried out by Hu et al [15].…”

Section: Introductionmentioning

confidence: 99%

Effect of Centrifugal Compressor with Influence on Partial Vaned Diffuser

Sivasubramaniyan,

Muthusamy,

Kuppusamy

et al. 2024

The International Conference on Processing and Performance of Materials (ICPPM 2023)

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Section: Introductionmentioning

confidence: 99%

Effect of Centrifugal Compressor with Influence on Partial Vaned Diffuser

Sivasubramaniyan,

Muthusamy,

Kuppusamy

et al. 2024

The International Conference on Processing and Performance of Materials (ICPPM 2023)

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“…Therefore, the requirement for high efficiency and compact size has led to widespread applications of different vaned diffusers in centrifugal compressors. Many previously published papers [3][4][5][6][7] on diffusers are focused on the influence of vane shapes on performance characteristics. Liu and Xu 8 presented a computational investigation of the flow field in a high-speed centrifugal compressor with a backswept unshrouded impeller and vane diffuser.…”

Section: Introductionmentioning

confidence: 99%

Study of the flow characteristics in multi-row vaned diffusers of a centrifugal compressor stage

Zhao

2018

Advances in Mechanical Engineering

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The vaned diffuser has a significant impact on the performance and operating range of a centrifugal compressor stage, and multi-row vaned diffusers are applied to improve the compressor characteristics in this article. In order to validate the effectiveness of the present calculation method, the calculation results of the centrifugal compressor with the conventional diffuser have been verified by the experimental data. The simulation results reveal that, compared with the original model at design point, the isentropic efficiency increases by 2.8% and 4.1%, and the total pressure ratio increases by 1.9% and 3.4%, for the compressor stage with the two-row vaned diffuser and the three-row vaned diffuser, respectively. The models with multi-row vaned diffusers also give higher static pressure recovery coefficient and lower total pressure loss coefficient. A pressure gradient formed on vane suction surface near vane leading edge develops the flow separation in the conventional diffuser. The pressure gradient thus causes the secondary flow from hub to shroud on vane suction surface, aggravating the separation in the rear part of the conventional diffuser. The analysis of flow characteristics in diffuser passages also shows that using multi-row vaned diffusers can alleviate flow separation appearing in the diffuser passages.

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Effects of vaneless region length on the performance of centrifugal compressor with vaned diffuser

Chen

Yang

et al. 2021

J Braz. Soc. Mech. Sci. Eng.

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Effect of diffuser vane shape on the performance of a centrifugal compressor stage

Cited by 4 publications

References 4 publications

Effect of Centrifugal Compressor with Influence on Partial Vaned Diffuser

Effect of Centrifugal Compressor with Influence on Partial Vaned Diffuser

Study of the flow characteristics in multi-row vaned diffusers of a centrifugal compressor stage

Effects of vaneless region length on the performance of centrifugal compressor with vaned diffuser

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