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繁體中文Munich Airport Upgrades Tunnel Ventilation Systems
09/25/2025As one of Europe’s busiest airports, Munich Airport has relied on two ventilation systems to service its north and south tunnels since it opened in 1992. These tunnels connect parking lots to the terminal area, and the systems are essential for maintaining air quality and removing smoke in the event of a fire. After more than 30 years, the airport has modernized these two systems—achieving significant improvements in energy efficiency and operational reliability—by adopting high-efficiency RadiPac C EC centrifugal fans from ebm-papst.
During the upgrade, two prefabricated FanGrid units were installed for each ventilation system (one for supply air and one for exhaust air). FanGrid designs feature multiple fans arranged side-by-side and stacked, operating in parallel. This setup not only creates more uniform air flow (boosting the through-flow efficiency of sound attenuation baffles and heat transfer) but also ensures operational reliability through redundancy: if one fan in the FanGrid fails, the others automatically increase their speed to maintain consistent air volume. Additionally, operating multiple fans at partial load reduces the system’s power consumption. A total of 34 new, high-efficiency RadiPac C centrifugal fans were deployed in the retrofit; installation was completed in a single day, and the entire project wrapped up from the end of October to the beginning of December 2024.
According to calculations by the airport’s energy management team, the upgrade—equipping the two systems with four FanGrid units—will save approximately 252,000 kilowatt-hours of electricity annually. Based on a gross energy price of 29 cents per kilowatt-hour, this translates to annual cost savings of around 50,000 euros, meaning the investment will pay for itself within three and a half years.
