Turbine nozzle airfoil and/or trailing edge profile
A turbine nozzle for a gas turbine includes: an airfoil having an airfoil shape having a nominal profile substantially in accordance with at least a portion of Cartesian coordinate values of X, Y and Z set forth in TABLE I. The Cartesian coordinate values are non-dimensional values of from 0% to 100% convertible to distances by multiplying the values by a height of the airfoil expressed in units of distance. The X and Y values are connected by smooth continuing arcs that define airfoil profile sections at each distance Z along at least a portion of the airfoil, and the airfoil profile sections at the Z distances are joined smoothly with one another to form the nominal profile. A trailing edge profile for a turbine nozzle is also disclosed.
1. A turbine nozzle comprising:
an airfoil having: a suction side, a pressure side opposing the suction side, a leading edge spanning between the pressure side and the suction side, and a trailing edge opposing the leading edge and spanning between the pressure side and the suction side; and
at least one endwall connected with the airfoil along the suction side, the pressure side, the trailing edge and the leading edge,
wherein at least one of a suction side or a pressure side of the airfoil has a shape having a nominal profile in accordance with at least a portion of Cartesian coordinate values of X, Y and Z set forth in Table I, wherein the Cartesian coordinate values are non-dimensional values of from 0% to 100% convertible to distances by multiplying the values by a height of the airfoil expressed in units of distance, and wherein X and Y values connected by smooth continuing arcs define airfoil profile sections at each distance Z along at least a portion of the airfoil, the airfoil profile sections at the Z distances being joined smoothly with one another to form the nominal profile,
wherein the shape having the nominal profile in accordance with the at least a portion of Cartesian coordinate values of X, Y and Z set forth in TABLE I includes the airfoil profile sections defined within 10% and 90% of the height of the airfoil.
2. The turbine nozzle of claim 1 , further comprising a fillet connecting a surface of the at least one endwall to a surface of the airfoil.
3. The turbine nozzle of claim 1 , wherein the at least one endwall includes an inner endwall or an outer endwall.
4. The turbine nozzle of claim 1 , wherein the turbine nozzle includes a first stage nozzle.
5. The turbine nozzle of claim 1 , wherein the shape having the nominal profile in accordance with the at least a portion of Cartesian coordinate values of X, Y and Z set forth in TABLE I includes the airfoil profile sections defined within 5% and 95% of the height of the airfoil.
6. A static nozzle section for a turbine, the static nozzle section comprising:
a set of static nozzles, the set of static nozzles including at least one nozzle having:
an airfoil having: a suction side, a pressure side opposing the suction side, a leading edge spanning between the pressure side and the suction side, and a trailing edge opposing the leading edge and spanning between the pressure side and the suction side; and
at least one endwall connected with the airfoil along the suction side, the pressure side, the trailing edge and the leading edge,
wherein at least one of a suction side or a pressure side of the airfoil has a shape having a nominal profile in accordance with at least a portion of Cartesian coordinate values of X, Y and Z set forth in TABLE I, wherein the Cartesian coordinate values are non-dimensional values of from 0% to 100% convertible to distances by multiplying the values by a height of the airfoil expressed in units of distance, and wherein X and Y values connected by smooth continuing arcs define airfoil profile sections at each distance Z along at least a portion of the airfoil, the airfoil profile sections at the Z distances being joined smoothly with one another to form the nominal profile,
wherein the shape having the nominal profile in accordance with the at least a portion of Cartesian coordinate values of X, Y and Z set forth in TABLE I includes the airfoil profile sections defined within 10% and 90% of the height of the airfoil.
7. The static nozzle section of claim 6 , further comprising a fillet connecting a surface of the at least one endwall to a surface of the airfoil.
8. The static nozzle section of claim 6 , wherein the at least one endwall includes an inner endwall or an outer endwall.
9. The static nozzle section of claim 6 , wherein the static nozzle section is a first stage nozzle section.
10. The static nozzle section of claim 6 , wherein the shape having the nominal profile in accordance with at least a portion of Cartesian coordinate values of X, Y and Z set forth in Table I includes the airfoil profile sections defined within 5% and 95% of the height of the airfoil.
11. A turbine nozzle comprising:
an airfoil having: a suction side, a pressure side opposing the suction side, a leading edge spanning between the pressure side and the suction side, and a trailing edge opposing the leading edge and spanning between the pressure side and the suction side; and
at least one endwall connected with the airfoil along the suction side, the pressure side, the trailing edge and the leading edge,
wherein at least one of a suction side or a pressure side of the airfoil has a trailing edge shape having a nominal profile in accordance with at least a portion of Cartesian coordinate values of X, Y and Z set forth in TABLE II, wherein the Cartesian coordinate values are non-dimensional values of from 0% to 100% convertible to distances by multiplying the values by a height of the airfoil expressed in units of distance, and wherein X and Y values connected by smooth continuing arcs define trailing edge profile sections at each distance Z along at least a portion of the airfoil, the trailing edge profile sections at the Z distances being joined smoothly with one another to form the nominal profile of the trailing edge shape,
wherein the shape having the nominal profile in accordance with the at least a portion of Cartesian coordinate values of X, Y and Z set forth in TABLE I includes the airfoil profile sections defined within 10% and 90% of the height of the airfoil.
12. The turbine nozzle of claim 11 , further comprising a fillet connecting a surface of the at least one endwall to a surface of the airfoil.
13. The turbine nozzle of claim 11 , wherein the at least one endwall includes an inner endwall or an outer endwall.
14. The turbine nozzle of claim 11 , wherein the turbine nozzle includes a first stage nozzle.
15. The turbine nozzle of claim 11 , wherein the trailing edge shape having the nominal profile in accordance with the at least a portion of Cartesian coordinate values of X, Y and Z set forth in TABLE II includes the trailing edge profile sections defined within 5% and 95% of the height of the airfoil.