Optimization procedures are widely used in centrifugal compressor developments to enable high efficiency and wide operating ranges of compressors. It is very important to understand how to set the parameters and which parameter needs to be optimized. This paper demonstrates a case study on the importance of mechanical and structure combination optimization and also discusses the meridional impacts of compressor performance.

Recently, the high pressure ratio and the efficiency of centrifugal compressors require impeller designs to pay attention to multi-disciplinary optimization. High efficiency and a wide operation range are always the design goal. The geometry of the blades and the meridional profile are very important contributors to compressor performance and structure reliability. Therefore, it is critical to consider all aspects of compressor optimization. The goal of currently used centrifugal compressors is to design a compressor with the same back-disc diameter with the best efficiency and the highest-pressure ratio.

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