Geothermal steam-water separators: Design overview

摘要: Abstract Since the development of liquid dominated geothermal reservoir at Wairakei, New Zealand in 1950s, various separator designs have been utilised to enable separation steam and water from two-phase fluid. This is ensure that only dry clean enters turbine generates electricity. Information several existing fields shows there are two common designs, vertical cyclone horizontal separator. Both reported high efficiency order 99.9% or higher. The normally found power stations with strong influence by technology Zealand. Iceland, Japan, Russia US. based on experience Wairakei Kawerau 1950s 1960s, modelling work Lazalde-Crabtree's (1984) . While principles design were Gerunda (1981) paper reviews steam-water commonly used worldwide. general steps for any given fluid presented. starting selection optimum pressure, predicting calculating internal pressure drop. Recent research utilises numerical approach using Computational Fluid Dynamics (CFD) obtain better understanding behaviour within reported. Unpublished data early trials presented this work. They show breakdown velocity increases reduction diameter body. measurement also discussed. Practical aspects locating main considerations given. concepts