jeudi 7 juin 2012

The Swell: new renewable energy source !


Translated by Bing :
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Harness the force of the wind, is known to do. But what for the waves? Can we use their power to produce energy? In the West of the Denmark, the swell has no lack of force and it is precisely what makes it difficult to master. A new system is in test off these coasts. "Climatic conditions are tough in this region and one of the great challenges that we face," explains Lars Elbaek, Dexawave responsible, the company responsible for the project, "is that a day like today, we can not go out at sea, the waves are too high, and even if it could get out," he says, "it would not able to board the wave energy converter." This prototype developed by Dexawave and is used to retrieve the energy of the wave. It is in place for more than a year. Lars Elbaek details us its operation. "Was in fact, two floats that move with the waves", he says, "and between the two floats, there are two hydraulic cylinders feeding a hydraulic motor which in turn is connected to an electric generator." But the company has yet to resolve many technical issues before the system is competitive and can compete with wind energy. Remains that the wave energy represents a considerable potential in terms of electricity production. Then, the research abandons not. A European study has indeed launched to improve the performance of the hydraulic pump system. The Dexawave team is working on better links of anchor and different concrete types that could be used for the floats. It also built a larger version of his floating equipment: from Lars Elbaek, "a converter with an output of 250 kW, 24 metres wide by 60 long and a total weight of 400 tons." Next year, the company moves to top speed: it has deployed a series of converters of energy of the waves off the coast of Malta.

La houle, nouvelle source d‘énergie renouvelable ?

From : euronews.com

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