Apparently, the idea of using sea wave energy is almost as old as the world. If romanticts prefer to fall into a reverie on the shore near sea waves and/or to air young maidens accompanied by the wash, pragmatists have been thinking for centuries how to utilize enormous power of the sea. The first patent for water energy utilization was granted in France nearly 400 years ago, so the idea has already been thoughtfully studied and even driven to industrial implementation.
Experimental wave electric power stations are already operating in Norway and Portugal, there is an experimental tidal electric power station functioning in Russia in Kola Peninsular, Japan has beacons and lighthouses utilizing wave energy, and in India, the Madras port lightship is running on wave energy. Nevertheless, among the variety of constructions there has been no coastal installation so far, which, would convert sea-wave energy into electric pwer and be relatively small, simple and, most importantly, inexpensive. Such an installation was designed by the specialists of the Center for Renewable Energy, its offices being based in Moscow and St. Petersburg.
Its principle of operation is rather simple. A double-armed lever is fastened on the post hammered in the sea bottom not far from the coast. There is a flat float on the one arm (the one which is longer). The other is connected to the water pump plunger. Waves raise the float, at that the pump injects water into the reservoir-storage on the coast – something similar to the water tower. When flowing out of this reservoir under the action of gravity, water gets on the hydrotreater’s turbine wheel fin, rotates it, and hydrotreater produces electric current – likewise any electric power station.
As a result, by using two absolutely free forces – wave energy and gravity, relatively inexpensive electric power can be obtained, and most importantly, this can be done without destroying natural fuel supply or any damage to the environment.
The indisputable advantage of such installation is its simplicity. Firstly, its proper electric generator is located on the coast – consequently, it is easy to assemble and there will be no need to lay out a cable for electric current transfer, as it should be done for the overwhelming majority of current wave installations. Secondly, the installation consists of parts simple in production, and the principle of operation of each element is well-known. Therefore, it will be easy to produce and assemble such installation – it is much easier and less expensive than to produce a big wave electric power station. And finally, the electric module of the new installation needs nothing but sea waves to operate – the module is capable of running quite independently, and this is a significant advantage. This is particularly important in the locations where electric light disruptions occur regularly due to broken off wires.
Is such an installation available for purchase now? Alas, not yet. So far, there exists a small working model, but this summer the designers are planning to test a full-scale model in real-life environment – to revise and optimize some parameters. However, the authors are absolutely sure of success. They have already made sure experimentally that the float of only the 5 cubic meter volume will be able to ensure capacity of no less than 5 kWt at sea roughness of 2 to 3 points. “It is absurd not to use a whole ocean of energy, which is splashing literally close by, says one of installation designers, Anton Kirunin. So, after testing we are planning to develop engineering documentation for the industrial-scale plant – and its production can be started.”
Prototype device for measuring graphene-based electromagnetic radiation created
28.10.2016 | Lomonosov Moscow State University
Steering a fusion plasma toward stability
28.10.2016 | American Physical Society
Physicists from the University of Würzburg have designed a light source that emits photon pairs. Two-photon sources are particularly well suited for tap-proof data encryption. The experiment's key ingredients: a semiconductor crystal and some sticky tape.
So-called monolayers are at the heart of the research activities. These "super materials" (as the prestigious science magazine "Nature" puts it) have been...
Ultrafast lasers have introduced new possibilities in engraving ultrafine structures, and scientists are now also investigating how to use them to etch microstructures into thin glass. There are possible applications in analytics (lab on a chip) and especially in electronics and the consumer sector, where great interest has been shown.
This new method was born of a surprising phenomenon: irradiating glass in a particular way with an ultrafast laser has the effect of making the glass up to a...
Terahertz excitation of selected crystal vibrations leads to an effective magnetic field that drives coherent spin motion
Controlling functional properties by light is one of the grand goals in modern condensed matter physics and materials science. A new study now demonstrates how...
Researchers from the Institute for Quantum Computing (IQC) at the University of Waterloo led the development of a new extensible wiring technique capable of controlling superconducting quantum bits, representing a significant step towards to the realization of a scalable quantum computer.
"The quantum socket is a wiring method that uses three-dimensional wires based on spring-loaded pins to address individual qubits," said Jeremy Béjanin, a PhD...
In a paper in Scientific Reports, a research team at Worcester Polytechnic Institute describes a novel light-activated phenomenon that could become the basis for applications as diverse as microscopic robotic grippers and more efficient solar cells.
A research team at Worcester Polytechnic Institute (WPI) has developed a revolutionary, light-activated semiconductor nanocomposite material that can be used...
14.10.2016 | Event News
14.10.2016 | Event News
12.10.2016 | Event News
28.10.2016 | Power and Electrical Engineering
28.10.2016 | Physics and Astronomy
28.10.2016 | Life Sciences