Mahpeykar, M. R.; Lakzian, E.; Amirirad, E. Reduction of thermodynamic losses in a supersonic nucleating steam nozzle by spraying water droplets. (English) Zbl 1350.76033 Sci. Iran., Trans. B, Mech. Eng. 16, No. 3, 253-262 (2009). Summary: During the course of expansion of steam in turbines, the vapour first 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 flow, subjected to spraying the liquid droplets close to the nozzle’s throat, are investigated. By injecting the water droplets into a supersonic condensing flow, the thermodynamic loss is considerably decreased. Cited in 2 Documents MSC: 76J20 Supersonic flows 76T10 Liquid-gas two-phase flows, bubbly flows 80A20 Heat and mass transfer, heat flow (MSC2010) Keywords:two-phase flow; convergent-divergent nozzle; nucleation PDFBibTeX XMLCite \textit{M. R. Mahpeykar} et al., Sci. Iran., Trans. B, Mech. Eng. 16, No. 3, 253--262 (2009; Zbl 1350.76033)