Multi-stage partial admission axial turbine

A turbogenerator comprising:

• an axial turbine, comprising:
• a body having a first open end and a second open end;
• a plenum disposed at the first open end for admitting a working fluid;
• a first partial admission stage, the first partial admission stage comprising:
• a first stator annulus attached to the body, the first stator annulus comprising a first partial admission sector, the first partial admission sector comprising a passage for the working fluid received from the plenum, and disposed on a first section of the first stator annulus, wherein the first section of the first stator annulus is disposed between a first opening angle and a second opening angle, and wherein the first partial admission sector comprises a plurality of vanes to steer the working fluid in a direction of rotation;
• and
• a first rotor having an annular profile and comprising a first plurality of blades;
• a second partial admission stage, the second partial admission stage comprising:
• a second stator annulus attached to the body comprising a second partial admission sector, the second partial admission sector comprising a passage for the working fluid received from the first partial admission stage, and disposed on a first section of the second stator annulus, wherein the first section of the second stator annulus is disposed between a third opening angle and a fourth opening angle, and wherein the first partial admission sector comprises a plurality of vanes to steer the working fluid in the direction of rotation;
• a second rotor having an annular profile and comprising a second plurality of blades;
• one or more driveshafts connected to the first rotor and the second rotor;
• and
• an electrical generator connected to the one or more driveshafts,
• wherein the first partial admission sector is disposed at a first clocking angle relative to the second partial admission sector and
• wherein at least one of the first partial admission stage or the second partial admission stage comprises an adjustment mechanism for changing the first clocking angle.