Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
TRANSFORMATION OF WATER WAVES INTO ELECTRICAL ENERGY
Document Type and Number:
WIPO Patent Application WO/2008/126103
Kind Code:
A3
Abstract:
There is an apparatus with a plate which is exposed to waves. This plate is capable of making to and fro movements, which are actually initiated by the waves and also by the gravity and the gradient of basins or by being spring loaded or due to weight of generator part. The plate is connected to a plunger or magnetic shaft through a link or connecting rod. The coils are placed around the plunger which will develop current if there is disturbance in the flux. At the end of the plunger there is a spring which has tendency to bring the plunger to a particular location. The plate and the energy conversion unit is conjoint only with the connecting rod or the link.

Inventors:
BAKSHI JAIDEB (IN)
Application Number:
PCT/IN2008/000235
Publication Date:
June 04, 2009
Filing Date:
April 09, 2008
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
BAKSHI JAIDEB (IN)
International Classes:
E02B9/08; F03B13/12; F03B13/16; H02K35/00
Foreign References:
FR2480860A11981-10-23
JPS58148279A1983-09-03
JPS5532484A1980-03-07
Download PDF:
Claims:

CLAIMS:

1) I claim that the invention is a process of generation of electricity from waves hitting the shores / platform( artificial or natural ).

2) I claim that the invention is a process of tapping the waves kinetic and potential energy hitting the shores or artificial /natural platforms.

3) I claim the kinetic energy and / or potential energy of the waves are used for generation of electricity .

4) I claim in this process of generation of electricity the waves directly hit the mechanical part of the unit with or without any interface.

5) I claim the energy of the waves are converted into electrical energy , by using the machine or the apparatus or electromechanical conversion system which utilizes the force of the waves to create a linear motion or rotary motion .

6) I claim that this process is an arrangement of electro mechanical unit where the mechanical part will be hit by the waves and mechanical part taps the energy of the waves.

7) I claim this process can be utilized at any place where the waves are present.

8) I claim the linear motion created by the wave in the part of the apparatus / machine is utilized for generation of electricity, in a way , as a plunger , when disrupts the electric flux generates electricity.

9) I claim that the apparatus for generation of electricity by using the kinetic energy and / or potential energy can be used in a group like in wind farms to provide electricity.

10) I claim that the electricity produced by tapping the waves kinetic and potential energy is commercially viable for distribution and sale for various purpose.

11) 1 claim that in this process the gravity , the gradient of the basin or weight of generator part can also be used to make the movement in the mechanical part of the system to generate electricity.

12) I claim that the other parts of the system leaving the mechanical part which is hit by the waves , can be mounted on the shores or platforms which can be natural or artificial.

Description:

TITLE : PROCESS OF TAPPING. KINETIC AND POTENTAIL ENERGY OF THE WAVES AND GENERATION OF ELECTRICITY .

We use various kind of energy forms to convert into other form of energy. The following invention is on the production of electricity from wave energy hitting the shores. The invention deals with the wave which hit the shore or a platform artificially created / naturally present . This process uses the kinetic energy and the potential energy of the waves hitting the shores . The waves are made to hit the apparatus/machine directly , so that there is no loss of energy . The movement in the process is also created by the direct hit of the waves. The electric power is developed through various types of processes , like hydel power plants, wind power , solar etc. There is still huge potential of wave energy untapped. One study says, Kinetic energy, the energy of motion, in waves is tremendous. A study says, An average 4-foot, 10-second wave striking a coast puts out more than 35,000 horsepower per mile oi coast. This process has provided a system by which we can tap the wave energy and generate electricity.

Field of Invention :

This invention of the process deals with the conversion of-huge kinetic energy and potential energy of waves in Sea / oceans / lakes / dams etc into electrical energy. We are having shortage of electrical energy and in our country we have hundreds of kilometers of sea shores. With this process the electricity ca * n be generated at the shores and transmitted and used in all the areas. The potential of the generation of electricity from wave is huge and is commercially viable' to operate in mega scale. The waves hit the shores in intervals and this , to and fro , movement is used in this process to convert it into electrical energy. The to and fro movement of the waves is directly utilized to create a movement and this movement in turn creates electricity.

State of Art in the fie' > ~ :

Many countries are doing research in the field of wave energy conversion. Most of the research are basically using the up and down movement of the waves. Like Float or buoy systems that use the rise and fall of ocean swells to drive hydraulic pumps. The object can be mounted to a floating raft or to a device fixed on the ocean floor. A series of anchored buoys rise and falPwith the wave. The movement "strokes" an electrical generator and makes electricity that is then shipped ashore by underwater power cable '

There is a process in which the turbine movement has been created by the pumping and the suction of air in a column. For example, Oscillating water column devices in which the in-and-out motion of waves at the shore enter a column and force air to turn a turbine. The column fills with water as the wave rises and empties as it descends. In the process, air inside the column is compressed and the air gives the rotational movement to the turbine. That energy is then harnessed and sent to shore

by electrical cable. Here the wave energy is not directly used by the apparatus to make electrical energy.

There is one more process in which the sea / ocean water is guided to a reservoir and then the water is used to generate electricity , as in standard hydel power stations.

Tapered channel" or "tapchan" systems, rely on a shore-mounted structure to channel and concentrate the waves, driving them into an elevated reservoir. Water flow out of this reservoir is used to generate electricity, using standard hydropower technologies.

This invention ie, this process , will be using the kinetic energy and potential energy . The resource is in abundance and this process will result in reducing the scarcity of electricity throughout. The kinetic energy, the energy of motion, in waves is tremendous. An average 4-foot, 10-second wave striking a coast puts out more than 35,000 horsepower per mile of coast.

The process here, uses the kinetic energy of the waves reaching the shore . This kinetic energy will be used to generate electricity with direct impact on the electricity producing system. The waves clue to height have soine potential energy , when the waves hit the shores , this potential energy also creates impact. In the process described in the invention, part of the potential energy has also been tapped

Object of Invention ( Problem & Solution )

We are having shortage of electricity. The main object of this invention is the development of process which can lead to abundance of electricity. The another object of this Invention is to make proper utilization of other.resources of electricity generation like coal , water etc , because their quantities : are limited and are required for many other purpose ( other than electricity ). As long as the sun shines, wave energy will never be depleted. It varies in intensity, but it is available twenty- four hours a day, 365 days a year.

Another main object of this invention is using the kinetic energy and potential energy of the waves directly , without any interface. A further object of this invention is using the shores or artificial platforms /natural platforms to gather/tapping all the energies / forces hitting the shores/platforms to generate electricity from the waves.

Another main objective of this invention that it is capable of being used in both standalone and group conditions to generate and distribute electricity.

Statement of Invention :

Accordingly the invention provides a process of tapping the energy of the waves hitting the shores or artificial platforms/natural platforms. This process uses the kinetic and potential energy of the waves to generate electricity. The to and fro movement of the waves is used in this process to generate electricity. The gravity , the gradient of the basin and weight of magnetic plunger are also used to make a part of the movement and generate electricity . The to and fro movement of wave having kinetic and potential energy is utilized in making to and fro movement (linear motion) in a magnetic field in the apparatus/machin.e( electro mechanical device) resulting in development of electricity. These apparatus in stand alone or in series /group together will be producing electricity.

Detail Description of the invention :

The process here, uses the energy of the waves reaching the shore . The kinetic and potential energy of waves can be used to generate electricity by directly impacting the electricity producing system. The kinetic energy of waves is due to the velocity of the waves with its mass. This kinetic energy has been tried to be tapped in this process of generating electrical energy. The process here also use a part of the potential energy ( which is due to the height of the wave ), because whenever the waves are hitting any shore or platform or a pfate , the height of the wave is also responsible for creating impact on the surface, it is hitting ( shore / platform / plate ) To explain the process 2 apparatus have been taken into consideration. All of them uses the kinetic and potential energy of the waves to generate electricity. This process uses the basic concepts of electricity generation . Like conventional hydel systems , here also we have first part which is external mechanical unit , here the external mechanical unit directly absorbs the kinetic and the potential energy of the waves .In the hydel power or thermal power the external mechanical unit is the plates of the turbine , the wheef of the Turbine and the channels of water or steam.

There is a central part which converts the energy , called here as energy conversion unit. The same is also available in our conventional hydel or thermal power p!ants.(Refer figure a ). And the third part is external electrical unit where the electric current is sourced , which also exists in both the hydel and thermal power plant..

The Hydel and Thermal power process are different as the source and process of creating Electrical Energy are different. The same is here , this process is different because here the source / resource is different with a unique way of tapping the source , and the process of creating electrical energy is different.

Here the osculating or the to and fro movement and the kinetic and the potential energy of the waves is used as a source. The energy of the waves are tapped in a unique way ( explained below with figures).The electrical energy is created by the oscillating two and fro movement of a magnetic plunger.

Here two apparatus which can be used are shown below and in both of them the' energy of the waves touching the shore has been tapped in same way but with some modifications. Both of them creates a linear motion in the magnetic field in the energy conversion unit , which are actually initiated by the to and fro movement of the waves and also by the gravity and the gradient of basin or by being spring loaded. ( Please refer figs b and fig c ).

In this figure of the apparatus there is a plate which is exposed to the waves , this plate is capable of making to and fro movement. The plate is connected to a plunger or magnetic shaft through a link or connecting rδd. The coils are there around the plunger which will develop current if there is disturbance in the flux. At the end there can be a spring which has tendency to bring the plunger to a particular location. There is artificial construction which divides the plate and the energy conversion unit and through this only the connecting rod or the link or hydraulic link can move.

The drawing of the apparatus / machine , shows the wave'will be hitting the plates , this will create a linear movement in the plates , ie , the plates will move towards the shore or platform , since this plate is attached with a rod or a link or hydraulic link , which in turn is attached to a shaft ( or a magnetio-plunger ), It will give a movement in the plunger or shaft . The shaft / Plunger will be a magnetic and this will cut the flux and generate current. The shaft in the end is loaded with a spring which will bring back the plate in the situation where it will again get hit by the wave to start the movement again and create linear displacement in the shaft or plunger to generate current.

All the process in the previous studies have not used the huge power of the waves hitting the shores , some have used the up and down movements of the waves , some have guided the waves to a reservoirs to generate electricity . Some have also used the to and fro movement of waves to make air flow , Air in turn rotates the turbines to generate electricity.

Here in this process , as in the diagram the waves will have potential energy due to their height and the kinetic energy due to their velocity of travel. The mix of these energies will be impacting the plate which can make to and fro guided movement. Since the shaft inside the apparatus will be spring loaded it will have the tendency to go back to a position where it will be again hit by the next wave traveling. So any movement in the shaft ( or magnetic plunger) due to the magnetic field and cutting of flux will generate electricity. These apparatus can be used in a stand alone condition or grouped together to generate electricity. This electricity after treatment can be used to give a stable electric current as in the case of wind power electrical energy systems. Like wind energy farms these can also be setup on the majority of the shores, these can be individual , stand alone type as well as a series or group of apparatus / machine combined together to produce electricity.

The figure (b) is similar with the figure (a) , the difference here is the plate can make a guided movement on the channel or rails fitted on the basin. The connecting rod or the link is made in such a way that it can make angular movement due to joints in the connecting rod and at the point where it is getting connected with the plate.

The apparatus in the figure (b) shows the wave will be hitting the plates , as they are exposed to the waves, this will create a linear movement in the plates , ie , the plates will move towards the shore or platform , since this plate is attached with a rod or a link , which in turn is attached to a shaft ( or a magnetic plunger ), It will give a movement in the plunger or shaft . The shaft / Plunger is a magnetic and this will cut the flux and generate current. The link or the connecting rod is having joints at two points , one near the artificial structure or the platform and another at the point of connection with the plate. These joints will allow some angular movement , as shown in the figure. The plate is loaded with weights/ mass in such a way that , when there is no wave hitting the plate , it will have tendency to go to the maximum distance point from the shore or platform due to the gravity and the gradient of the basin . The rail or channel has been shown which can be placed on the ocean basin and its gradient and gravity is used to bring the plate to the position , where it will be hit by the waves. Due to the movement of the magnetic plunger or shaft , the current will be produced as explained in the previous figure. The backward movement of the plate to the location where it gets exposed to wave to make a linear movement can be done by using the gradient of the basin , gravity , weight of plunger or combination of these with spring loaded shaft as in the Figure (a) .

The working of the apparatus / machine ie Electro mechanical energy conversion device is based on the following equation.

( Total mechanical Energy Input ) = ( Electrical Energy output ) +( Increase in energy stored in the magnetic field ) + ( Energy converted into heat)

The figure (a) further clarify that electrical variables developed in the electromechanical energy conversion system are functions of force and mechanical displacement in the system. The line diagram of a simple conversion system illustrated, depicts the basic portions , the details of which may vary from system to system. The system consists of three parts , 1) An external mechanical portion , 2) the energy conversion means 3) external electric portion..

For movement of a moving member with respect to stationary member , presence of air gap between the stationary and moving members is necessary. The energy stored in the coupling field must develop action and reaction on the mechanical and

electrical systems for the conversion of energy from mechanical to electrical form. When the output is electrical energy , the coupling field will react with mechanical system so as to absorb mechanical energy from the mechanical system. In this case reaction is the counter torque T ( opposite to the applied mechanical torque of the prime mover ) developed due to the interaction of current (i) and the coupling field . Thus the coupling field extracts mechanical Energy proportion to the counter torque and movement of the plunger in the mechanical system , and converts it into electrical form and delivers energy proportional to ei (e=emf )to the electrical system.

Scope and / or Ambit of the Invention:

The invention is for energy conversion and utilization of the wave energy hitting the shores . This process uses the waves kinetic energy and to some extent the potential energy to generate electricity. The to and fro movement of the waves is used directly by an apparatus / machine which can be plaeed on the shore or platforms artificially created or on natural platforms. The to and fro movement of wave having kinetic and potential energy is utilized in making to- and fro movement or a rotational movement in a magnetic field in the apparatus/machine ( electro mechanical conversion device) resulting in development of electricity. These apparatus in stand alone or in series /group together will be producing electricity. This invention is for using the huge energy of the waves hitting the shores or artificial / natural platforms for producing electricity by a specific method of tapping it and making a process which is commercially viable for distribution of the electricity for various usage. Once the structure and the commissioning is done , this system can be used 24hrs and for 365 days , without any change in resource/source or usage and depletion of the source.

Although the invention has been described with reference to specific embodiments , this description is not meant to be construed in limiting sense . Various modification of the disclosed embodiments , as well as alternate embodiments of the invention , will become apparent to a person skilled in the art upon reference to the description of the invention. It is therefore contemplated that such modifications can be made without departing from the spirit or scope of the" present invention defined.

PREAMBLE OF DESCRIPTION:

We use various kind of energy forms to convert into other form of energy. The following invention is on the production of electricity from wave energy hitting the shores. We are having shortage of electricity. The main object of this invention is the development of process which can lead to abundance of electricity. The another object of this Invention is to make proper utilization of other resources of electricity generation like coal , water etc , because their quantities are limited and are required for many other purpose ( other than electricity ). As long as the sun shines, wave energy will never be depleted. It varies in intensity, but it is available twenty-four hours a day, 365 days a year. The electric power is developed through various types of processes , like hydel power plants, wind power , solar etc. There is still huge potential of wave energy untapped. One study says, Kinetic energy, the energy of motion, in waves is tremendous. A study says, An average 4-foot, 10- second wave striking a coast puts out more than 35,000 horsepower per mile of coast. This process has provided a system by which we can tap the wave energy and generate electricity.

The invention deals with the wave which hit the shore or a platform artificially created / naturally present . This process uses the kinetic energy and the potential energy of the waves hitting the shores . The waves are made to hit the apparatus/machine directly , so that there is no loss of energy . The movement in the system is also created by the direct hit of the waves. This invented process deals with the conversion of huge kinetic energy and potential energy of waves in Sea / oceans / lakes / dams etc. into electrical energy. We are having shortage of electrical energy and in our country we have hundreds of kilometers of sea shores. With this process the electricity can be generated at the shores and transmitted and used in all the areas. The potential of the generation of electricity from wave is huge and is commercially viable to operate in mega scale. The waves hit the shores in intervals and this , to and fro , movement is used in this process to convert it into electrical energy. The to and fro movement of the waves is directly utilized to create a movement and this movement in turn creates electricity.