Renewable sources of energy refer to sources of heat and power that are inexhaustible in the short run. By the short run, we refer to the relatively short time that we humans shall exist. Fossil fuels take millions of years to become what they are, which is a non-renewable source. Renewable sources of energy include solar power, geothermal energy, wind energy, energy harvested from the ocean, etc. Ocean water moves with such force and speed that it would be silly not to make use of it to create energy, which is so necessary in our digitally-driven world today. Many researchers today are looking for new techniques in which to harvest the strength of the ocean, a resource that is abundant and moves with extreme force around us.
The Microwave Concentration Method To Harvest Ocean Energy:
A few years ago, some researchers got together to come up with ideas about how to make microwaves more efficient. After brainstorming for a while, they tried out a new technique to concentrate microwaves and push heat inwards. To do this, they took a bunch of metal sheets and arranged them in a cylindrical and radially outward shape. What they found out was that this sent the heat microwaves straight to the center of the cylinder. Moreover, with the success of this discovery, they thought to try it out as a device they could use to harvest ocean energy.
How Does The Microwave Concentration Method Help In Ocean Wave Harvesting?
After this, the researchers used the logic that they used for better transmission of heat and went on making attempts to do the same with water. In other words, they left the cylindrical device submerged in a tank of ocean water and awaited the results, in the following manner. However, the metal sheets must be taller than the height of the water. To test the invention, they used a small toy boat atop the water, before and after adding in the harvesting device, to check the amplitude of the waves. The toy boat, atop the water, moves along with the slow and steady incident waves at an amplitude of 2 mm. Next, to continue the experiment, researchers placed the circular device in the water (with the boat in the center). The boat began to shuffle here and there quite violently, as compared to before. The amplitude of the interior waves reached 6.4 mm, a stark lift from the mere 2 mm, by using this device.
Does Ocean’s Wave Harvesting Work?
Another test that the researchers conducted was to test how to suppress reflection in the water. They figured out a method to get rid of reflections. What they found out during research was that if the water depth gets deeper, gradually, from the outside-in, it eliminates the presence of reflections. Following this, they designed such a device that it followed this principle, and they brought it to life using a 3D printer. Their theory turned out to be right once they tried it with their mini-sized 3D print design, which they printed on a centimeter scale. They successfully suppressed the reflections. However, researches could only take up these projects in labs and research offices and buildings. What the researchers now require is ocean water, in the ocean itself. Likewise, they are now looking to raise funds to build their cylindrical device to place in the ocean itself.