Sharif Digital Repository

The performance of centrifugal compressors deviates from its best design point and reaches lower efficiencies by time and conversion of input gas properties such as the pressure, temperature, and mixture characteristics. By the fact that each designed compressor should have a wide range of functionality, redesign and optimization processes take place. One of the challenging methods for improving the performance of centrifugal compressors is to modify aerodynamic passage of gas in impellers in order to achieve better pressure ratio and efficiency. The aims of the current study are to evaluate geometry properties of the blades of the first or the second impeller and even the whole compressor...