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Windtech International July August 2024 issue

 

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Nordex is widening its range of solutions for noise-sensitive sites with the "Xtended Power Sound Concept" solution package that covers the N100/2500 and N117/2400 turbines from Generation Gamma as well as Generation Delta machines as a retrofit option. Two independent but complementary products – Sound Mode Optimisation and Serrations - enable customers to benefit from reductions in sound power levels while at the same time increasing turbine yield by up to 13 per cent.

By specifically raising the torque, the Sound Mode Optimisation upgrade makes it possible to improve the power curve while maintaining the same rpm and sound power level. The Sound Mode Optimisation upgrade means that the turbine can operate by a large number of noise-optimised modes. These can be individually set on the basis of wind direction, outside temperature or even public holidays. In this way the acoustic load is reduced in line with site requirements while output is increased. With Serrations – components added to the trailing edges of the blades on site – the sound power level of the turbines is constantly reduced by around 1.5 decibels. The turbine is quieter overall and allows the operator to change into a higher operating mode.

In addition to these two products, the offer also includes a site-specific analysis of the potential for noise reduction, taking official requirements into account. The Nordex Group also carries out any new noise measurements that may also be required by authorities.

 
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