Liquid ring rotating casing steam turbine and method of use thereof

A liquid ring rotating casing steam turbine, comprising:

• a casing mounted for rotation about a first axis and having an inner cylindrical surface surrounding a liquid ring that is warmer than the steam so as to inhibit condensation of the steam upon contact with said liquid ring;
• an impeller mounted for rotation eccentrically in said casing about a second axis parallel to and spaced from said first axis, said impeller forming a static axial bore;
• said impeller having a plurality of vanes spaced from each other around said bore with each vane extending outwardly from said bore to a tip in a radial direction with respect to said second axis such that the vanes form multiple chambers that are directed towards and lie within said inner cylindrical surface;
• a steam inlet within the static axial bore of the impeller for injecting a steam at high pressure into the impeller where the chambers are narrow so as to rotate the impeller and in so doing to expand said steam essentially isentropically within a plurality of said chambers so that said steam at least partially undergoes a steam-to-liquid phase change in the impeller to convert heat to work;
• and
• a steam outlet within the static axial bore of the impeller and fluidly separated from the steam inlet for allowing the expanded steam to escape at low pressure and low temperature.