Another Video tutorial performed by us !!

Alternative Link :  http://1drv.ms/Wq0gi3

First Home Experiment Paid off !!

The first task was to select such a method of artificial wave generation which could easily be applied to the tank and also generates the desired waves through which we can also control amplitude and wavelength of the wave.

So, this flap method we tried at home and hopefully we succeeded. !!

Pulley and buoy method of wave conversion

The picture shows easy transformation of electrical energy with equipment easily available. A counterweight is added to shft the balance of pulley in downward motion.

Project Progress

Methodologies Used For the project

What's in - What's out

Buoy Clapper Design- Wave energy Converter

 This is one of our proposed design for the wave energy converter. The buoy will move up and down with the wave strike, then connecting rod will push up which will turn a complete revolution of the shaft.

Improvements and Solutions

1)   UNI-DIRECTIONAL ROTATION:

To make the crank shaft rotate uni-directionally to maximize rotation at the end.  
2)   MAXIMIZING ROTATION:
To maximize rotation output hence leading to more power output.
 3) UTILIZATION OF BOTH MOTION :
The two opposite directed forces, the lift force and the gravity force, are unified to a one-way rotation of the flywheel system and the generator. It means that the converter absorbs energy twice in every wave period, which gives a fast and smooth rotation.
 4)FLAP METHOD:Flap Method of wave generation most suited for wave generation In the
 tank compared to the previous one applied to the system   ( turbine method).
 5)DEGREE OF FREEDOM:

Degree of flap movement leading to higher amplitude and desired wavelength of the waves.
 6)LUBRICATION: Proper lubrication of crank shaft and bearings for more fluent movement of the crankshaft.
 7)FOR DESIRED ROTATION:
Flywheel attachment to the shaft of the mechanical system giving desired rotation.

Cad Models of Wave tank apparatus

Testing of Artificial Waves in the tank manually through bottom hinged flap

It is seen that by moving flap which is hinged from the bottom we are creating artificial waves in the tank. The degree of freedom of the flap is an important factor in this aspect. We will keep it from 10 to 18 degrees both sides. You will observe the wave parameters in this i.t wavelength and amplitude. The higher the amplitude the higher will be our output generation.

Flap Method to generate artificial waves testing phase

Mid evaluation guidlines

Dice Innovation portal

http://diceinnovationportal.com/signin.aspx

Cad Model With assumed dimensions

Wave generation using Paddle OR Plunger Method

Injector Method

https://www.youtube.com/watch?v=UjScpLRZcZg

https://www.youtube.com/watch?v=xhtg-RosQHw

Flap-type WaveGenerator with Articulation Above the Free Surface

Different Types Of Wave generators

Flap-type Wave Generator with Single Articulation 
PRINCIPLES~ 
This is a flap oscillating about an axis located at the channel bed or a certain distance above the bed. The edge of .the paddle may descend to the articulation axis or stop at a certain distance from this axis . The motion imparted to the water is zero at the channel bed. Therefore; this wave generator is not adaptable in principle except to waves of infinite depth, that is~ such that the wave length is less than twice the depth. In actuality  the device yields good results even at very shallow depth.

CONSTRUCTION :
               ~The construction is very simple; the flap may be made quite strong and rigid by means of proper shaping.
INERTIA :
            The inertia is relatively small.
MAINTENANCE:
               The single hinge is in the water, it can be quite simple and, its maintenance slight.
REFLECTION CHARACTERISTICS~
                  The flap is reflective, as demonstrated by theory and experience, yet its real reflection coefficient is smaller than the theoretical coefficient because of leakages along the walls, breaking, and turbulence.

Maintaining an Adequate Wave Amplitude

It is known that the use of wave filters causes a decrease in the amplitude of the genera ted wave. This disadvantage may constitute a source of trouble in certain tests" usually of a theoretical nature, in which it is desired to obtain waves of large steepness. In this case» it is necessary to intensify the wave after' it has traversed the filters ~
             Two methods. which can be applied separately or' simultaneously" have been investigated at the Dauphin Hydraulic Laboratory (Neyrpic) for several year so,

             The first method consists of installing downstream of the filters a convergent channel where the wave is intensified;

             The second method consists of raising the channel bed downstream of the filters', this has little effect on the wave amplitude (the amplitude even decreases in certain cases) but. shortening the wave length» finally increases the wave steepness.
             Thanks to such arrangements" . It should be noted, nevertheless, that the first ,method is used more generally than the second method, which makes it possible to obtain appreciable intensification of the waves only when the ratio of depth to wave length is sufficiently small"

Phase 1 : Understanding Wave Motion and its Characteristics

Starting With the Quest .

 Let us go through some basics of
  Wave motion characteristics and key ingredients to deal with.

A~. Inertia
It is essential to assign to the wave generator a small inertia sufficient to assume rigidity and solidity. To enable the member~ to resist  stresses, it is necessary to increase the dimensions, hence the mass and,consequently, the inertia of these members •.This  increase . involves two detrimental effects: the . required motor power to.overcome the passive resistances and the inertia forces is greatly increased, and the motion .,' is quite irregular because. of these forces.

B;, Maintenance
Maintenance of the apparatus similarly poses problems to the designers •. It is necessary to avoid as much as possible using in the water any delicate members, articulations, bearings, rollers, or gears. In addition to the danger of corrosion, it is essential to remember that the water often contains sand either in the model structures as such or because the. model comprises a mobile bed.

C. Reflection
In reality, the waves reflect .'from a given structure tend to depart seaward where they become dissipated; in a model, however, they recoil toward the Wave generator. Both theory (presented subsequently in Biesels 13 article) and practice show that most wave generators are quite reflective.

There seem to exist two remedies for this disadvantage.
a) The first is the use of a filter
b)The second is the use of' special method Or wave generators with little reflection

Project Animation Wave Energy Converter! 

This video illustrates an interesting wave energy conversion technology called the Ocillo drive
Source: wavewaterworks.com

http://paksc.org/video/alternative-energy/299-wave-energy-converter-project-animation

Renewable Energy !!

The Department of Energy (DOE) has launched a multiple-year effort to validate the extent to which control strategies can increase the power produced by resonant wave-energy converter (WEC) devices. Many theoretical studies have shown a promise that additional energy can be captured by controlling the power-conversion chains of resonant WEC devices.

http://energy.sandia.gov/energy/renewable-energy/water-power/in-the-news-water-power-clean-energy-research/