Design and Key Technology of Oil-Free Centrifugal Air Compressor for Hydrogen Fuel Cell
For a 120kW hydrogen fuel cell system, a centrifugal air compressor with fixed power of 22kW fuel cell is designed.Firstly, the theoretical calculation is carried out for the aerodynamic characteristics of a ultra-high-speed permanent magnet synchronous motor, an air compressor, and an aerodynamic tillman 750m foil bearing.Then, a prototype is tria