International Scientific Journals
of Scientific Technical Union of Mechanical Engineering "Industry 4.0"

Inline pipe Francis turbine design is proposed. Spiral case is not used in inline pipe Francis turbines and the flow can enter the stay vanes directly. The flow rate can be distributed uniformly around stay vanes. Another advantage of the new design is that the static pressure drop of the flow is less than that of conventional Francis turbines, which minimize the losses. Working range of the turbine is increased in the new design, as well.