Department of Mechanical Engineering,Ferdowsi University of Mashhad
Abstract
Abstract. During the course of expansion of steam in turbines, the vapour rst supercools and then
nucleates to become a two-phase mixture. Formation of the liquid phase causes thermodynamic and
aerodynamic losses in steam turbines. In this study, the treatment is a one-dimensional, non-equilibrium
ow in a steady Laval nozzle. In this paper, the changes in the rate of nucleation, entropy, pressure and
other parameters of the two-phase
ow, subjected to spraying the liquid droplets close to the nozzle's throat,
are investigated. By injecting the water droplets into a supersonic condensing
ow, the thermodynamic
loss is considerably decreased.
Mahpeykar, M. , Lakzian, E. and Amirirad, E. (2009). Reduction of Thermodynamic Losses in a Supersonic Nucleating Steam Nozzle by Spraying Water Droplets. Scientia Iranica, 16(3), -.
MLA
Mahpeykar, M. , , Lakzian, E. , and Amirirad, E. . "Reduction of Thermodynamic Losses in a Supersonic Nucleating Steam Nozzle by Spraying Water Droplets", Scientia Iranica, 16, 3, 2009, -.
HARVARD
Mahpeykar, M., Lakzian, E., Amirirad, E. (2009). 'Reduction of Thermodynamic Losses in a Supersonic Nucleating Steam Nozzle by Spraying Water Droplets', Scientia Iranica, 16(3), pp. -.
CHICAGO
M. Mahpeykar , E. Lakzian and E. Amirirad, "Reduction of Thermodynamic Losses in a Supersonic Nucleating Steam Nozzle by Spraying Water Droplets," Scientia Iranica, 16 3 (2009): -,
VANCOUVER
Mahpeykar, M., Lakzian, E., Amirirad, E. Reduction of Thermodynamic Losses in a Supersonic Nucleating Steam Nozzle by Spraying Water Droplets. Scientia Iranica, 2009; 16(3): -.
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