The small wind turbine Enair evolves thanks to a new technology.
Enair is able to increase its energy generation yields by more than 20% and in turn its reliability, safety and robustness by more than 17% thanks to the application of one of the new and innovative technologies, commonly used in sectors such as Aerospace, military or the nautical. This technology is the Computational Fluid Dynamics and to this day very few of the sector of small and medium-sized companies at international level, have made use of it.
In order to apply this technology that is called in the sector as CFD (Computational Fluid Dynamics), it has been necessary a great advance in the speed of computation and of the computer science in general to be able to make parallel processes in large scale and of very high complexities. Specifically these types of simulations carry with them the calculation of millions of very complex equations and may easily require several weeks of computation of supercomputing.
Generally, specialized supercomputing centers are used and an average of 200 next-generation CPUs are used continuously for 2 weeks, for example to analyze the behavior and efficiency of a Wind Turbine Shovel in any real wind condition.
The method used to perform these simulations, tries to make a very small mesh of surfaces and based on the application of mathematical algorithms simulates the behavior of the wind in any condition to ensure that the design of the same have the requirements and the Efficiency. The final result obtained from current CFD techniques are 99% equivalent to reality and despite the large number of calculation hours required, save years of test in test fields, which has been the usual method used in the sector of small wind.
From Enair and based on its experience of applying the techniques of CFD in the small wind turbine concretely in, it supposes an important competitive advantage, since it obtains an increase of the production of energy of more than 20% and in turn a strong increase of the robustness of wind turbines of more than 17%.
The 20% increase in energy efficiency is due to the fact that when applying these procedures, a new blade profile is defined defining the behavior of the wind turbine. To have a blade that maximizes the energy in low winds according to the electro mechanical behavior of the whole and that in turn allows to optimize to a great extent the energetic conversion of the wind at speeds greater than 12 m / s, causes that the average weight and the efficiency increase significantly.
On the other hand, the 17% increase in the robustness and safety is due to the optimization of aerodynamic profiles and surfaces, which causes the wind to only affect the critical parts necessary for the production of energy. At the same time, aerodynamic protection systems such as the Pitch Control (Pitch Control) are designed that absorb the high speeds, maintaining the stability of the whole. After the last analysis in computational dynamics the variable step has been optimized remarkably, reason for which these increases are obtained.
With this technological increase Enair, it expects to access the international sector with a reinforced, innovative and latest technology that guarantees the returns of the investment quickly, offering a warranty of life over 25 years. This new technology, together with a legal framework favorable to renewable energies, will allow the energy sector to be much more distributed to any consumer user and will probably grow a small sector to this day.
