thrust on the rotor is minimized by using this opposed dual exhaust system if desired a flywheel may be mounted on the turbine shaft to provide a greater moment of inertia and angular momentum combustion products are the preferred motive fluid for the turbine such combustion products are generated by the combustion system 30 which receives and mixes fuel and air from a fuel supply 52 and an air supply 54 the combustion system ignites and burns the fuel and the resulting exhaust gases are directed by the turbine nozzle 44 against the turbine rotor to drive the turbine the turbine system may have conventional components known in the art including compressors for fuel and air igniters separate combustion chambers cooling systems and various devices such as recuperators that are used to improve turbine efficiency the tesla turbine has a number of advantages over traditional bladed turbines including simplicity of construction low cost high tolerance for particulate contaminants in the air and fuel reduced maintenance requirements low audible noise adaptability for use with multiple fuels low rotor stress concentrations high moment of inertia per unit of mass high moment of inertia per unit of volume ability to operate at higher tip speeds ability to store more energy as angular momentum and reduced thrust bearing requirements when opposed dual exhausts are used when the primary power supply is functioning normally the static switch 20 is on and the critical load 16 is powered by the primary power supply through the static switch 20 power from the primary power supply also powers the controller 14 and the motor generator machine 8 which acts.