PRESENTATION

Hello. As we all know, the energy, the electrical energy in particular, is among the primary sources we utilize when meeting our needs in daily life. Lighting, communication, air conditioning, numerous machines we use in our houses, elevators, transportation, etc. We know that the electrical energy we require in order to use such means is generated via diverse methods and conversions. Here we are aiming to conduct a study on the utilization of the wave energy, which is among such methods, but is not so popular. First of all, this form of energy is renewable with an unlimited source. Moreover, it is entirely environment-friendly, making it possible to provide cycles that will not result in any contribution and waste with negative effects on the earth. In that case, if we can find the proper answers to the questions like the potential, the conversion efficiency and the cost of this energy, we can consider ourselves having discovered a treasure that would positively influence our life in every respect. As is known, 2/3 of the earth surface is covered by waters and this gigantic mass of water is in a state of continuous motion due to various atmospheric effects and variations in the magnetic field of the earth. This continuous motion contains motion and kinetic energy. What we aim is to economically convert this available energy into a form that we may utilize in our daily life. The knowledge that only 1/100 of the wave energy in the oceans is more than 5 times the global energy demand indicates the size of the energy with the potential of being utilized. As for Turkey, the added value we may obtain in case we utilize our 8200 km coastline in this regard, i.e. in case we perform the conversion of the energy from the sea and the waves via proper methods, is obvious. With each passing day, many countries are placing more emphasis on the sea and wave energy and are increasing the share of the same in their overall amount of energy utilization. Also, many countries are setting the goals for increasing the overall rates of utilization of the renewable energy even further in the coming years. Below are the data for the year 2013 for the countries utilizing the sea and wave energy: • South Korea                                                     252 MW % 36 • France                                                             240 MW % 34 • United Kingdom (England-Ireland-Scotland)         110 MW % 15 • India                                                                 30 MW % 4 • Canada                                                             20 MW % 3 • USA                                                                  10 MW % 1.5 • Australia                                                             5 MW % 0.5 So we attempted to design an efficient conversion by the use of the sea and wave energy. We devised a platform with the capability of floating in the sea and designed a weight moving on this platform. The aim here is to generate electricity by converting the motion of the weight into the cyclic motion. According to this approach, the more rapid the motion is and the heavier the moving object is, the greater will be the power to be obtained in direct proportion. The floating platform is designed in such a way that a controlled instability is created in order to ensure continuous motion. (It is possible to achieve the controlled instability by means of the factors such as the center of gravity, metacenter point, controllable weight and weight arm and the details of the entire structure are described under the heading “operating principle of the system”). The platform, which will begin to oscillate even under the smallest wave effect, will also cause the spherical weight disposed on the same to move. The speed of this motion is dependent on the weight arm distance and the amount of the dipped weight under our control; we can also devise a system to generate the power values we desire by identifying the weight of the ball accordingly in the design. The wave periods are generally between 3 and 5 seconds. In our design, we can also provide different angles to the platform surface in order to ensure that the weight ball will continuously move in an unstable manner. To sum up, we will try to generate energy by providing the motion for a preferred weight on a rather unstable surface under the influence of the waves and converting this motion into the cyclic motion. The incompressible nature of the liquids, the ability of the liquids to transmit the pressure as it is, their buoyancy and the absence of loss in the interactions with the solid particles (platform, ball, motion mechanisms) except for minor frictional losses suggest that the efficiency in the transmission of the motions, hence the power conversion efficiency of the system, would be high. It is considered quite feasible to install and operate the highly efficient conversion systems with a power of 5-10 KW, which would take a small space on volumetric basis. As a result of the studies to be conducted, it would be possible to perform the designs with desired capacities depending on the efficiency and the power potential. The advantage of our system consists in the ability to design an efficient conversion for the sea and wave action having the potential to lift the gigantic masses, in a manner dependent upon the weights, motion speeds and motion surfaces at our option. It will be possible to provide this conversion via a small unit, to have such conversion open to the effect of the waves acting from any direction, to achieve high efficiency and to increase the capacities via the inter-unit connections or via the design of the units with desired number or desired size.