Fraunhofer Institute for Building Physics IBP
With regard to process air technology systems, efficient measures against environmental emissions such as noise, waste gas and particulate matter are required to meet the respective rules and standards. The aim of the project is to design the mandatory acoustic functions in an energy-efficient way. Noise-reducing building components increase the current energy consumption, such as silencers, for example, which reduce noise but also cause pressure losses. To overcome these losses, a lot of energy for an increased fan power is required. With the new approach "distribution in preference to concentration", the noise attenuation, as one of the measures, is not only concentrated on sections equipped with silencer baffles, but is used over the usually sufficiently available duct length.
This overall optimization of the acoustics and energy performance involves considerable savings effects, which have already been impressively demonstrated in practice by the example of a vehicle paintshop. Since there is no applicable method for this overall optimization available so far, the existing theoretical knowledge will be expanded in the project in a practically oriented way, and the air flow and acoustic calculations will be linked. The resulting efficient methods and instruments will then be available for the design, planning and evaluation of acoustically optimized and energy-efficient plants.