conceptual design of a centrifugal compressor impeller for a 65 kw micro gas turbine

the aim of this study is designing the impeller of a centrifugal compressor in order to supply pressure ratio for a 65 kw micro gas turbine. first, the primary thermodynamic analysis has been conducted for the considered cycle using a home made code. herein, the compressor pressure ratio was considered to be 4. the obtained thermal efficiency was 25.64%. then, the design of micro compressor in 90,000 rpm rotational speed was conducted and its dimensions were extracted. the designed micro compressor has 9 main blades and 9 splitter blades. the outer diameter of the compressor impeller was 95.5 mm. then, the three-dimensional geometry of the compressor impeller was extracted. finally, to validate the designed impeller, ccd software was used and cfd analysis has been conducted on generated geometry, using cfx.