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Title:
DEVICE AND METHOD FOR GENERATING ENERGY
Document Type and Number:
WIPO Patent Application WO/2017/115194
Kind Code:
A1
Abstract:
A method for generating energy comprising steps of (a) a liquid flowing in a conductor (2) from a liquid reservoir (1) (b) liquid impacting at least two turbines (4, 4') placed inside the conductor (2) (c) producing energy by a generator connected to turbine (d) pumping liquid back to the liquid reservoir (1). The step of pumping liquid back may comprise at least one intermediate reservoir (8) to which liquid is pumped from lower level. A device for generating energy comprises a liquid reservoir (1); a conductor (2) for flow of liquid; at least two turbines (4, 4') inside the conductor; a generator connected to turbine; venturi (6) with or without pump (9) to pump back the water.

Inventors:
RASHIDIYAN SALEHI, Hamed (No.803 Aryan town, Hesabi st, Shiraz 78778, 7197678778, IR)
Application Number:
IB2016/057555
Publication Date:
July 06, 2017
Filing Date:
December 13, 2016
Export Citation:
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Assignee:
RASHIDIYAN SALEHI, Hamed (No.803 Aryan town, Hesabi st, Shiraz 78778, 7197678778, IR)
International Classes:
F03B13/08; F03B9/00; F03B17/04; F03G7/10
Domestic Patent References:
WO2012071632A12012-06-07
WO2014020241A22014-02-06
WO2015004509A12015-01-15
Foreign References:
US20030059292A12003-03-27
GB2516612A2015-02-04
Attorney, Agent or Firm:
ESTEDLAL, Gholamhosein (no.60, North Iman st, Shiraz 67784, 7186667784, IR)
Download PDF:
Claims:
C O N C L U S I O N S

1. Method for generating energy, encompassing liquid flowing through a conductor from a liquid reservoir, which conductor contains a generator connected to a turbine which generates electricity from the flow of water, which method is distinctive as the conductor contains at least two turbines connected to dedicated generators.

2. Method in accordance with conclusion 1, encompassing the step of the flowing water running through both turbines in series.

3. Method in accordance with conclusion 1, encompassing the step of the flowing water running through at least two parallel conductors which are each equipped with turbines.

4. Method in accordance with conclusion 1, encompassing the step of pumping the water back to the reservoir.

5. Method in accordance with conclusion 1, encompassing the step of installing a venturi in a position after the last generator, which is the outflow to spray the water back to the reservoir.

6. Method in accordance with conclusion 5, encompassing the step-by-step moving of liquid from the outflow to the end of the conductor to the liquid reservoir, first encompassing spraying liquid to an additional reservoir, and then pumping the liquid from this reservoir to the liquid reservoir.

7. Method in accordance with conclusion 1, encompassing the step of flowing liquid from a natural liquid reservoir, which natural liquid reservoir is a lake or sea.

8. Method in accordance with conclusion 7, encompassing the step of installing a conductor in a dyke for the flow of liquid from a natural liquid reservoir to drive at least two turbines connected to generators in order to generate electricity and feeding back the water to the liquid reservoir using a pump, which pump is powered by energy generated by a generator driven by a turbine.

9. Design for applying a method in accordance with the above conclusions, encompassing: a liquid reservoir; a conductor for the flow of liquid from the liquid reservoir under the influence of gravity; at least two turbines in the conductor which are connected to dedicated generators in order to generate electricity; and a design to feed the liquid back to the liquid reservoir.

10. Design in accordance with conclusion 9, in which the design used to feedback liquid is a pump which is at least partially fed by a turbine, with the understanding that the number of generators powering the pump is less than the total number of generators driven by the turbines.

Description:
DEVICE AND METHOD FOR GENERATING ENERGY

This invention concerns a method in accordance with claim 1. The invention also relates to a design for the application of this method.

Such a method is known in the field of engineering. There are, for example, hydro-electric power stations that work in accordance with the principle of streams of water from a reservoir through piping with a turbine to a lower area in order to generate electricity using this turbine. The turbine is connected to a generator for this purpose.

Such method requires large installations in order to generate electricity. Water fed through the turbine is not reused. The amount of energy generated using water is therefore limited in current plants.

The present society continuously requires an increasing amount of energy. Electricity in particular must be generated in increasing larger volumes to meet the ever increasing demand. Sadly, the largest amount is being using coal plants and the like, which release a large amount of pollutants into the atmosphere. The quality of life of all living beings on earth diminishes as a result.

A new method for generating energy is required. There is a particular need for a method to generate energy in a simple and cheap manner at virtually every place on earth with a limited number of resources without any or a limited amount of emissions harmful substances.

The invention aims to provide an improved method of the type indicated in the claim.

The invention has the particular aim of providing a method as indicated in the claim which can be implemented both in a fixed manner in the earth and as a mobile unit.

The invention also aims to provide an improved design able to perform the method in accordance with the invention.

In order to gain at least one of the above examples, the invention provides a first method which includes the measures of conclusion 1. This method has the benefit of easily generating energy without, essentially, any emission of harmful substances.

It has been found that the method in accordance with the invention can be rapidly constructed with a limited number of resources. Such synergistic action is completely unexpected.

The invention therefore relates to a method for generating energy, including having liquid flow from a reservoir through a conductor by means of gravity, which conductor includes a turbine connected to a generator, which generates electric energy using the flow of the water, which method is characteristic by the conductor containing at least two turbines which are each connected to a dedicated generator. By installing more than a single turbine in the conductor, the water flowing through the conductor will be able to generate twice the electric energy. The flow rate of the water through the conductor will decrease, due to increasing friction losses. The discharge will also decrease in comparison with a conductor only containing a single turbine. Each generator will therefore provide less energy than a conductor with a single generator. The benefit of this is that a lower fluid discharge needs to be fed back to the reservoir to go through the process again. By using high-efficiency turbines, generators and pumps, the discharge fed through the conductor can be fed back using the pump powered by a generator connected to a turbine placed in the generator.

In accordance with an alternative design, a limited amount of energy from outside the system can be provided to power the pump; for example from a solar cell or windmill, possibly in conjunction with a powered battery. The diameter of the conductor can be increased to maintain the same flow rate for multiple turbines.

This document will discuss water in its examples, but other liquids are also applicable in the invention.

The method preferably contains a step in which the water flows through the turbines in series, as the whole flow of water flows through multiple turbines in order to generate a certain amount of energy each time which drives the generator. This results in a very efficient design of the method in accordance with the invention.

Another application preferably contains a parallel switch, in which a greater number of turbine can be easily applied.

As aforementioned, it is preferable that the method includes a step of pumping the water fed through the turbines back to the reservoir.

A special design is created with a method in which a venturi is placed after the last generator, which is an outlet used to spray the water which has been fed through the turbines back to the reservoir. This locally increases the flow rate of the liquid. By aiming the outlet of the venturi, the outlet of the conductor, towards the liquid reservoir, the liquid can be fed back to the liquid reservoir, at least partially.

If the distance to be covered from the venturi is insufficient, the method can include a step in which the liquid is moved step by step from the outlet of the conductor to the liquid reservoir, in which the liquid is first sprayed to another reservoir, and then into the original liquid reservoir. The necessary electric energy for the pump which moves the liquid to the liquid reservoir is significantly lower than the energy generated by the generators.

A cheap design is created if the liquid stems from a natural liquid reservoir, such as a lake or the sea. This provides the benefit that the most costly component is already present in nature. Building a separate liquid reservoir with sufficient capacity to maintain the method is very costly.

A cheap design is particularly created if the reservoir is located near the surface of the earth, and the conductor is located lower beneath the surface, and water is fed through it thanks to gravitational forces. The conductor contains turbines to extract energy from the flow of liquid. The flow of liquid fed to the lowest position will then be fed back up using a part of the generated electricity. Geothermal energy could be used to help feed the liquid back up. 75 It is particularly preferable to use a liquid which at least partially heats up and converts into a gaseous form after being fed through the conductor in a liquid form. This makes the process of feeding the liquid back to the liquid reservoir easier. In this case, a condenser would be required to convert the gaseous material back into liquid so that it can be reused in the plant.

Another economical possible design of the method is created when a conductor is installed in a

80 natural water barrier from which water flows which drives at least two turbines connected to

generators in order to generate electricity and this water is pumped back to the liquid reservoir using a pump which is powered by at least one generator connected to the turbine.

Another aspect of the invention relates to a design for a method in accordance with the invention, which includes:

85 - A liquid reservoir;

- A conductor through which liquid flows from the liquid reservoir under the influence of gravity;

- At least two turbines installed in the conductor which are each connected to a dedicated generator in order to generate electricity; and

90 - A device to feed the liquid which has been fed through the conductor back to the liquid

reservoir. The advantages as aforementioned with respect to the method can be achieved in this manner.

The turbines can be connected both in series and parallel.

A design in which the liquid is fed back using a pump which is at least partially powered by a 95 turbine is preferred, with the understanding that the number of generators powering the pump is less than the total number of generators driven by the turbines.

The invention will be explained below based on a figure. The figure shows:

Fig. 1 and 2 are an application of the method in accordance with the invention in a dyke, Fig. 3 and 4 are an application of the method in accordance with the invention in a floating 100 object,

Fig. 5 to 8 are an application of the method in accordance with the invention in a variant, and Fig. 9 and 10 are an application of the method in accordance with the invention in a parallel circuit.

The numbers in the figures always refer to the same components. Not all components required for the practical application of the invention are shown due to the simplicity of the figure.

105 Fig. 1 shows an application of the method in accordance with the invention in which the sea serves as liquid reservoir 1. A conductor 2 runs from the sea 1 to a position below dyke 3.

This can also be a position behind dyke 3. The conductor contains three turbines 4, 4', 4" through which the water flows from conductor 2.

The water will drive turbines 4, 4, 4" connected to the generators (not shown) and as a result of 110 which electricity will be generated. Because there is more than one turbine, the amount of water

flowing through conductor 2 will be less than would be the case for a single turbine if the diameter of the conductor is equal. A conductor with a larger diameter can be used to maintain the same discharge and flow rate. The discharge of the water flowing from the conductor depends on the resistance created by all turbines and generators jointly and of the diameter of the conductor. The conductor 2

115 can be closed using the tap 13.

Conductor 2 is equipped with outflow 6 on the liquid reservoir 1 in the shape of a venturi. In this variant, conductor 2 contains three turbines which each drive a dedicated generator (not shown). Outflow 6 has a smaller diameter than the conductor at the location of the turbines. As a result, the flow rate of the water near outflow 6 is significantly higher in conductor 2 up to outflow 6. Outflow 6

120 is positioned such that the out flowing water 7 is sprayed towards sea 1, serving as liquid reservoir 1.

Thanks to the placement of outflow 6, the water will flow back into sea 1. The outflows are preferably located in an area not affected by wind as not to hinder or distort the water streams. This applies in all cases in which a water stream is sprayed out of an outflow.

Fig. 2 shows a variant of the design in Fig. 1. There are four turbines 4, 4', 4", 4"' in conductor

125 2. In Fig. 2, the water flows from outflow 6 to a reservoir 8 in which the water level will be

approximately equal to outflow 6. The water spraying from outflow 6 will drive an additional generator 20. The electricity required for pump 9 can be provided by a single generator.

Fig. 3 shows a schematic of design 10. Design 10 contains an object 11 floating in a liquid reservoir 1. The object in this design is a ship 11, while the liquid reservoir is a sea 1. The ship 11 has

130 a part protruding over the sea surface, surrounded by an edge 12. Sea water flows to outflow 6 through conductor 2. Due to the shape of the outflow 6, the water sprays upwards with increased speed, past the edge 12, back into the sea. Instead of the shown two turbines, multiple turbines can be used. The tap is installed to stop the flow of water.

Fig. 4 shows a variant of the design in Fig.3. This includes an enclosure 14 around the sprayed

135 water, allowing easier adjustment of the water stream without any loss of energy.

Fig. 5 shows a design in which liquid flows from liquid reservoir 1 towards a reservoir through a number of turbines 4, 4', 4", from which the liquid is pumped back to liquid reservoir 1 using a pump 9. The energy required for the pump 9 can be provided by the generators connected to one or two turbines 4, 4', 4", Fig. 6 and Fig. 7 show a variant of the design in accordance with Fig. 5. Fig. 6

140 contains an outflow 6 on the end of the conductor 2, allowing the liquid flowing through the conductor 2 to be directly sprayed to liquid reservoir 1. Fig. 7 shows an additional reservoir 8, from which the liquid is pumped to reservoir 1.

An extra additional reservoir 15 can be installed, in which liquid is sprayed to a first additional reservoir 8 from which the liquid is led to a reservoir 15 through a turbine and then pumped through

145 drain 21 in liquid reservoir 1.

In accordance with the variant in Fig. 8, the liquid can be sprayed back to the liquid reservoir 1 from the additional reservoir 8. Figures 9 and 10 show the application of parallel set-ups rather than a serial design in accordance with previous figures. Fig. 9 shows that the flow of liquid through the conductor 2 can be

150 done through parallel turbines. The liquid discharge through the main part 16 of the conductor 2 is as large as the discharge through the parallel pipes 17, 17', 17". Each parallel pipe 17, 17, 17" also has two turbines each, but other amounts are possible. Each parallel pipe 17, 17, 17" can also contain a dedicated tap to close it or to adjust the resistance in each parallel pipe 17, 17', 17" so that each parallel pipe 17, 17', 17" has the same discharge.

155 Fig. 10 shows a top view of variant involving multiple outflows 6. The shown system can be economically applied in the system in accordance with Fig. 1, shown in the side view. The liquid discharge through the main pipe 2 is identical to the discharge in outflow pipes 18, 18'.

The invention is not limited to the above designs described in the figures. The invention is only limited by the attached conclusions. For example, the design as shown in Fig. 6 can be easily

160 constructed as a movable unit which makes it suitable for energy generation at remote locations. A supporting electricity source can be provided to maintain an increased capacity from the generators. This could be solar cells or wind mills, possibly with a charged battery. A heat source can also be installed at a position 19 in the conductor 2, as shown in Fig. 6. This increases the water temperature, resulting in an increased upward force as the liquid rises into liquid reservoir 1.

165 The invention also concerns each combination of measures which have been independently described.