Aldo Antonio Rueda Martínez, Fernando Rueda Martínez, Miguel Toledo Velázquez^*, Florencio Sánchez Silva, Ignacio Carvajal Mariscal, Juan Abugaber Francis

Show more
Researching and Graduate Section Applied Hydraulics and Thermal Engineering Laboratory.
Show less

Abstract: Within turbine blade rows, particularly for cascades of high deflection angle, cross-channel gradients of steam properties may be appreciable. To determine the effects on spontaneous condensation of gradients of supersaturation normal to streamlines, the conservation equations can be incorporated in a two dimensional calculation procedure. With the help of program FORTRAN 90 a developed computational program of calculations is accomplished, whose results are communicated to the pressure and Mach number distribution, direction of flow and streamlines in the field and the drops distribution in the outlet of the stator blade mesh. The procedure contains a program section, which avoids difficulties in the strongly curved profile of the leading and trailing edge by a developed computational mesh construction.

Keywords: Steam Turbines; Nucleation; Two Phase Flow; Erosion

Cite this paper: A. Martínez, F. Martínez, M. Velázquez, F. Silva, I. Mariscal and J. Francis, "The Density and Momentum Distributions of 2-Dimensional Transonic Flow in an LP-Steam Turbine," Energy and Power Engineering, Vol. 4 No. 5, 2012, pp. 365-371. doi: 10.4236/epe.2012.45048.

References

[1]   R. I. Crane, “Droplet Deposition in Steam Turbines,” Proceedings of the Institute of Mechanical Engineer Sciences, Vol. 218, No. 8, 2004, pp. 859-870.

[2]   J. A. Hesketh and P. J. Walker, “Effects of Wetness in Steam Turbines,” Proceedings of the Institution of Mechanical Engineers Science, Vol. 219, No. 12, 2005, pp. 1301-1314.

[3]   F. Bakhtar, A. J. White and H. Mashmoushy, “Theoretical Treatments of Two-Dimensional Two-Phase Flows of Steam and Comparison with Cascade Measurement,” Proceedings of the Institution of Mechanical Engineering Science, Vol. 219, No. 12, 2005, pp. 1335-1336. doi:10.1243/095440605X31454

[4]   D. Xie, X. Yu, W. Li, Y. Hou, Y. Shi and S. Cai, “Numerical Simulation of Water Droplets Deposition on the Last Stage Stationary Blade of Steam Turbine,” Energy and Power Engineering, Vol. 2, No. 4, 2010. pp. 248-249. doi:10.4236/epe.2010.24036