طراحي مفهومي جز دوار يك كمپرسور گريز از مركز ميكروتوربين گاز 65 كيلووات

Conceptual Design of a Centrifugal Compressor Impeller for a 65 KW Micro Gas Turbine

دانشگاه علم و صنعت ايران

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.