THERMODYNAMIC DESIGN OF RADIAL TURBINE FOR TURBO - CHARGER

This is a report for design process of radial turbine used in turbocha rger. Input for design requirements are power, mass flow rate, inlet temperature, pressure and rotation speed. The design variables include rotor radius ratios, stator - exit angle and rotor - exit tangential velocity distribution. The geometry was tested usin g Computational Fluid Dynamics (CFD) where some modifications were introduced on the preliminary design to satisfy the design requirements. The turbine’s design point rotational speed is 60000 rpm, stagnation inlet temperature and pressure are 1050K, 3.39 bar respectively and mass flow rate is 0.55kg/s. The turbine rotor has 15 blades with inlet and exit diameters 102mm and 36 mm.