First stage impulse steam turbine nozzle axially tangential holes matrix

A turbine system including gas turbines, comprising:

• a turbine rotor comprising a plurality of blades attached to a rotatable shaft;
• and
• a turbine nozzle placed in front of the turbine rotor, wherein the turbine nozzle comprises:
• a body comprising a first side and a second side opposing the first side, defining a thickness between the first side and second side, and having a plurality of nozzle holes formed through the thickness between the first side and second side, wherein:
• the second side of the body faces the turbine rotor;
• each nozzle hole has an inlet on the first side of the body to receive fluid and an outlet on the second side of the body to direct the fluid to the blades of the turbine rotor;
• the nozzle holes are arranged in a plurality of circular patterns on the first side about a central axis;
• inlet areas of the nozzle holes arranged in the same circular pattern are the same;
• and
• inlet areas of the nozzle holes arranged in a circular pattern having a larger radius are larger than inlet areas of the nozzle holes arranged in a circular pattern having a smaller radius.