b'Partner News Autumn 2022 35Corporaterecord precision-grade acoustical data from 20Hz to 20,000Hzthe entire range of the human auditory recognition. Gary Johansen, Vice President of Engineering for Cummins Power Systems, said: The ATC is a magnificent house of sound. We recognise the need for an investment like this and wanted to make sure we had a world-class facility to deliver world-class solutions.Prior to the ATC, noise testing was conducted at an outdoor facility. However, due to harsh weather conditions in Minnesota, and outdoor background noise levels, the accuracy of the noise testing was compromised. A unique design to be marveledThe design of the facility includes patented anechoic wedges that line the interior of the chamber that are designed with metadyneperforated metal to achieve a 50Hz cutoff.The chamber is also equipped with a sophisticated ventilation system that 10 yearstransfers air at a rate of 222,500 cubic feet per minute while maintaining a regulated temperature and humidity level. Alex Savelli, Managing Director of Cummins Electrolyser business, said: Any person that does visit will be marveled, not only at what of quiet it looks like but also at what it can do. Gary added: The ATC is a significant investment for the future. Today we have been testing diesel and natural gas gensets, as well as other industrial equipment.But what we are quickly moving towards is testing hydrogen fuel cells, energy storage systems and power electronics that control and manage the movement of power Noise emission regulations around thebetween assets and sources, so in the world require power solutions of all shapesfuture we may be testing fewer engines, and and sizes to not exceed certain noisemore new technologies.thresholds.To pass those rigorous acousticThe 10 year anniversary of the Acoustical requirements, highly scientific and preciseTechnology Center coincides with the testing is essential. launch of Cummins Destination Zerotheir In 2011, Cummins Inc. (NYSE: CMI) built anmission to have net zero caron emissions by Acoustic Technology Center (ATC) at its2050. This is just another demonstration of power system plant in Fridley, Minnesota. ACummins commitment to environmentally state-of-the-art facility that gives Cumminssafe and sustainable products.and its customers the ability to test productFor more information on the Acoustical noise levels to deliver the quietest powerTechnology Center or Destination Zero, generation products on the planet. visit: www.cummins.comThe ATC is the largest of its kind, with a hemi-anechoic chamber that is 105 feet long, 80 feet wide and 36.5 feet high, and can'