Investigation of Inlet Guide Vane Efficiency in Centrifugal Compressors for the Turbo Refrigeration Machines

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Numerical optimization reveals key design factors affecting performance in centrifugal compressors, indicating the vital role of swirl generation.

Inlet guide vane blade curvature angle significantly affects swirl generation efficiency at the impeller inlet, enhancing compressor performance.
Numerical simulations analyzed approximately 120 IGV configurations to establish performance correlations based on geometric parameters.
Theoretical foundations of inlet swirl's impact on aerodynamic characteristics provide insight for optimizing turbo refrigeration machines.
Results enable recommendations for optimal inlet guide vane design to improve efficiency in centrifugal compressors across various refrigerants.

Danilishin et al. (2025) studied this question.

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Numerical optimization reveals key design factors affecting performance in centrifugal compressors, indicating the vital role of swirl generation.