An Airfoil-Type Propeller Blower for Ventilating Electrical Machines

The authors discuss the development of an airfoil-type propeller blower, the design of which was influenced by space limitations in connection with the motor-driven blower equipment for a 165,000-kw turbine-generator unit installed at the Richmond station of the Philadelphia Electric Company. After the fan was designed, a model was built and tested before the full-size equipment was constructed. The authors present performance data for both the model and the full-size blower.