Turbine bucket having outlet path in shroud

A turbine blade comprising:

• a blade coupled to a base and extending radially outward from the base, the blade including:
• a body having:
• a pressure side;
• a suction side opposing the pressure side;
• a leading edge between the pressure side and the suction side;
• and a trailing edge between the pressure side and the suction side on a side opposing the leading edge;
• and
• a shroud coupled to the blade radially outboard of the blade, the shroud including:
• a notch between a leading half and a trailing half of the shroud;
• a first plurality of radially extending cooling passageways within the body on the leading half of the shroud;
• a second plurality of radially extending cooling passageways within the body on the trailing half of the shroud;
• and
• a first outlet path comprising outlet passageways extending radially through the shroud on the trailing half of the shroud;
• and
• a second outlet path extending at least partially circumferentially through the trailing half of the shroud at the trailing edge of the body wherein the second outlet path exits the blade only at the trailing half of the shroud, wherein an entirety of cooling fluid passing through the first plurality of radially extending cooling passageways and an entirety of the cooling fluid passing through the second plurality of radially extending cooling passageways exits only the first outlet path and the second outlet path.

A turbine comprising:

• a stator;
• and
• a rotor contained within the stator, the rotor having:
• a spindle;
• and
• a plurality of buckets extending radially from the spindle, at least one of the plurality of buckets including:
• a base;
• a blade coupled to the base and extending radially outward from the base, the blade including:
• a body having:
• a pressure side;
• a suction side opposing the pressure side;
• a leading edge between the pressure side and the suction side;
• and a trailing edge between the pressure side and the suction side on a side opposing the leading edge;
• and
• a shroud coupled to the blade radially outboard of the blade, the shroud including:
• a notch between a leading half and a trailing half of the shroud;
• a first plurality of radially extending cooling passageways within the body on the leading half of the shroud;
• a second plurality of radially extending cooling passageways within the body on the trailing half of the shroud;
• and
• a first outlet path comprising outlet passageways extending radially through the shroud on the trailing half of the shroud;
• and
• a second outlet path extending at least partially circumferentially through the trailing half of the shroud at the trailing edge of the body wherein the second outlet path exits the blade only at the trailing half of the shroud, wherein an entirety of cooling fluid passing through the first plurality of radially extending cooling passageways and an entirety of cooling fluid passing through the second plurality of radially extending cooling passageways exits only the first outlet path and the second outlet path.