A second generation<\/strong>, taking into account a certain number of dysfunctions of the first generation, was developed during the years 2010. The impeller of this new generation differs from the previous one by a slightly radial profile of the impeller<\/strong> allowing a control of the velocity of the liquid phase relative to the gas phase one, the objective being to obtain a velocity slip (difference in phase velocities) as close as possible to zero.<\/p>\n\n\n\n A third section deals with two-phase expansion using helico axial hydraulics<\/strong> inspired by the two-phase compression equipment. The hydraulics of this turbine, strictly helico axial (no radial component) were developed in the 2000s and have been tested with particularly satisfactory results.<\/p>\n\n\n\n Just as the second generation of compression hydraulics allows interfacial slip control (velocity of the liquid phase relatively close to that of the gas), it is perfectly conceivable to apply this theory to the impellers of a two phase turbine. This should also lead to a slightly radial shape<\/strong> however with a decreasing diameter from the impeller inlet to the outlet<\/strong> (the reverse in the compression case).<\/p>\n\n\n\n A fourth section presents a wide range of applications for two-phase pumping and expansion.<\/strong> These applications relate to the field of petroleum production, refining and chemistry. This section will be completed in 2021.<\/p>\n\n\n\n![\"Helico](\"http:\/\/yvcharron.com\/wp-content\/uploads\/2020\/03\/PVC-Impeller_2nd-generation.png\")
Two phase flow turbines<\/h2>\n\n\n\n
Severe slugging control with two phase pumping<\/h2>\n\n\n\n