WO2018070946A2

WO2018070946A2 - Electric power generation system using a domestic water turbine

Info

Publication number: WO2018070946A2
Application number: PCT/TN2017/000003
Authority: WO
Inventors: Khaldoun CHATER; Anouar BEN CHAABANE
Original assignee: Chater Khaldoun; Ben Chaabane Anouar
Priority date: 2016-10-10
Filing date: 2017-10-10
Publication date: 2018-04-19
Also published as: TN2016000434A1; WO2018070946A3

Abstract

The invention relates to an electric power generation system using a domestic water turbine, known as "KARFOUDA". The system of the invention essentially comprises: a cylindrical or ring-shaped basin having a flat or conical base; multiple vertical-axis turbines, two-thirds being secured to the inner wall of the basin; and, optionally, a large vertical-axis turbine (main turbine) located in the middle of the basin and driven by an electric gear motor. As water is poured gradually into the basin, the large turbine, driven by the motor, creates a hydrodynamic lift that rotates the small turbines, each of which is coupled to an alternator so as to generate electric power. As the water continues to pour into the basin, the hydrodynamic lift that was created in turn assists the gear motor in causing a large amount of water to whirl. In this way, it is possible to generate electric power to operate the gear motor and for the remaining electric power to be used.

Description

TITLE: System of production of electric energy with a domestic turbine

DESCRIPTION:

The invention relates to a system for producing electrical energy with a domestic turbine "KARFOUDA".

The system initially consists of (Figure 1):

"A cylindrical basin with a flat bottom,

^■ Several turbines with vertical axes located 2/3 on the inner wall of the basin and each one is linked to a speed multiplier and then to an alternator,

^■ A large turbine, with a vertical axis, located in the middle of the basin and which is driven by an electric motor coupled to a speed reducer located at the top or bottom of the basin,

1- Operation:

By pouring water from the source gradually and rotating the electric motor, which in turn rotates the main turbine through a coupling and a speed reducer, it causes the rotation of the water and by following the creation of a hydrodynamic lift capable of rotating small turbines.

These small turbines are located 2/3 on the inner wall (circumferential surface) of the basin and are guided in rotation each by two rolling bearings: one is fixed at the bottom of the basin and the other is attached to an assembled lid to the basin on the high side. (Figure 2).

The rotational movement of these small turbines will be transmitted to the alternators via speed multipliers attached to the end of each turbine (Figure 1). By continuing to pour water into the basin, the hydrodynamic lift that has been created, will help the gear motor to rotate a large amount of water.

In this way we will be able to produce electrical energy to operate the simple gear motor and use the rest.

2- Improvements:

Several improvements that can undergo by the system, object of our invention, and in order to increase the energy recovered by the latter:

"The use of a toroid shaped pond facilitates the flow of water and subsequently increases the hydrodynamic lift responsible for rotating the small turbines (Figures 5 and 6),

^■ Hyperbola shape fins make it easier for the motor to turn the main turbine (Figures 3 and 4),

^■ Other suggestions for improvement that can be considered such as:

The use of a pump whose role is to suck the water from the pool and reinject it again through orifices machined on the inner wall of the basin and located close to each small turbine, thus serving both to increase the hydrodynamic lift of the water circulating in the basin and also cause the small turbines in rotation (Figures 7, 8, 9 and 10).

Replace the main turbine by a plate with fins and located at the bottom of the basin and rotated by an electric motor.

The system may also be equipped with a turbine whose bore surrounds the axis of the first turbine which is rotated by the geared motor. The latter, which starts to rotate due to the hydrodynamic lift produced by the first turbine, is also coupled to an alternator to produce more energy.

^■ Outputs from each turbine that is main or auxiliary (small turbine), instead of being linked to the speed multipliers and then to the alternators, they will each be coupled to a low pressure pump. All these pumps (BP) participate in the transmission of the fluid to a single hydraulic motor and running at a very high speed. This hydraulic motor, in turn, transmits the rotational movement to a large alternator. The synoptic of this solution is shown in Figure 1 1.

Claims

CLAIMS The embodiments of the invention, for which an exclusive right of ownership or privilege is claimed, are as follows:

1. System of production of electrical energy with a domestic turbine "KARFOUDA",

2. The system according to the claim is characterized in that its active part is composed of:

A cylindrical or toric basin with conical bottom,

Several turbines with vertical axes located 2/3 on the inner wall of the basin and each is linked to a speed multiplier and then to an alternator, - A large turbine, vertical axis, located in the middle of the basin and which is driven by an electric motor coupled to a speed reducer located at the top or the bottom of the basin,

3. The subject system of the invention may also include a pump whose role is to suck water from the pool and reinject it back through orifices machined on the inner wall of the pool and located near each small turbine , thus serving both to increase the hydrodynamic lift of the water circulating in the basin and also to drive small turbines in rotation.

4. To increase the production of electrical energy, the system according to claim may be equipped with a turbine whose bore surrounds the axis of the first turbine which is rotated by the geared motor. The latter, which starts to rotate due to the hydrodynamic lift produced by the first turbine, is also coupled to an alternator to produce more energy.

5. The system is open to any improvement such as the change of the main turbine by a plate with fins located at the bottom of the basin and rotated by an electric motor.

6. At the outlet of each turbine (either main or auxiliary), a low pressure pump (BP) can be coupled with the others to run a hydraulic motor at a very high speed. This motor, in turn, drives a large alternator in rotation to produce electrical energy.