Sensitivity Analysis of One-Dimensional Performance Prediction for Centrifugal Compressor

Abstract To explore the sensitivity sorting of a one-dimensional performance prediction model, high-load centrifugal compressor is studied. Using Latin Hypercube method, influencing factors model are designed. Based on analysis ANOVA, main pressure ratio and efficiency investigated, guidance for optimization proposed. The results show that affecting deviation loss, radial diffuser incidence impeller blockage loss. choke Finally, optimal coefficients corresponding to loss models obtained based results. Compared with three-dimensional numerical simulation, error near design condition within 1%, which indicates presented method can achieve accurate off-design prediction.