Turbomachines

Turbomachines are rotary type machines where the transfer of energy is brought about by dynamic action. Here impervious boundary containing the fluid does not exist. In a  turbomachine, energy exchange is brought about by hydrodynamic forces that appear between a moving fluid and the rotating and stationary elements of the machine. Here a dynamic energy exchange is taking place between one or several rotating elements and a rapidly moving fluid. The main components of a turbomachine are a vane carrying rotating element which operates in a fluid stream, some stationary elements acting as guide vanes for the proper control of flow direction and the energy conversion process, two shafts and housing. A turbomachine creates thermodynamic and dynamic action between a slow moving surface and a static fluid. This action involves a change in either volume or displacement of the fluid. Some characteristics of turbomachine are high rotational speed, simple design, less weight and almost vibration free.