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1. (WO2018077414) FLOATING SCREW TURBINES DEVICE

Pub. No.:    WO/2018/077414    International Application No.:    PCT/EP2016/076002
Publication Date: Fri May 04 01:59:59 CEST 2018 International Filing Date: Fri Oct 28 01:59:59 CEST 2016
IPC: F03B 13/26
F03B 17/06
Applicants: UPRAVLJANJE KAOTICNIM SUSTAVIMA J.D.O.O.
Inventors: KONCAR, Nenad
SOKOLIC, Sanjin
MUSTRA, Jure
VUKMAN, Denis
MACUT, Zoran
MILAT, Jozo
Title: FLOATING SCREW TURBINES DEVICE
Abstract:
A floating screw turbine device with adjustable rear deflectors/diffusors (80, 90) is disclosed. Three pontoons (10, 20, 30), spaced apart, carry water ducts (40, 50) in which screw turbines (60, 70) are mounted. Screw turbines (60, 70), mounted in a V configuration, have mirror symmetrical pitches of the screws measured over the centre of symmetry that passes through the central pontoon (20). Such a configuration minimizes the vibration of the said device. Rear deflectors/diffusors (80, 90) have an adjustable pitch relative to the floors of the water ducts (40, 50) by which they can affect the water flow velocity through the said water ducts (40, 50). In one embodiment, the optimum pitch is selected according to the previously performed computational fluid dynamics simulation for the said device, where the said pitch is changed using hydraulic or electromechanical actuators. In another variant an artificial neural network (ANN) is taught to model a global function of the system dynamics in order to achieve optimal operation.