Rental solution with Aerzen compressors for a 300m tunnel 2MW compressor technology immediately available through Aerzen Rental 10/03/2020 Sometimes water ingress can really put a building site under pressure. Literally and figuratively. Fortunately, with the right compressor technology you can quickly bring the situation under control. Pressluft Frankfurt Drucklufttechnik GmbH identified Aerzen Rental as the best partner for its project in Karlsruhe. Ruling out water ingressAn underground tram tunnel is being built between Ettlinger Tor and Marktplatz in Karlsruhe. Running through the city centre, the tunnel is around 300 metres long all told. The geology of the area meant there was a risk of water ingress. The deeper the tunnel, the higher the groundwater pressure. BeMo Tunneling GmbH had to use pouring concrete to stabilise the walls. But the pores were so large that, without the correct counterpressure, the groundwater could stream through the walls. That meant the pressure range in the first phase of construction was 0.75 to 0.85 bar, so the German regulations for work involving compressed air had to be followed.Space-saving solutionThe four compressors that were originally installed could not be relied upon to do the job. A new solution was needed that could be implemented fast. Pressluft Frankfurt Drucklufttechnik GmbH identified Aerzen Rental as the best partner. To save space, eight CVO4400 units, each with a 250kW motor, were combined into two-storey units. The compressors were hooked up to water coolers that bring the air outlet temperature down from 120°C to 20°C. As Peter Engelke, project manager at Pressluft Frankfurt explains, “In cases like this you have to find an efficient solution fast. The three companies work together in a flexible and very professional way.”For special applications it can sometimes be more economical to rent compressor packages rather than buying them. Like to know more about this case or have a question about a specific project?
17/04/2023 - Compressed air generation: use energy potentials AERZEN: from machine to system solution - double-stage compressed air packages with heat recovery Thanks to open system integration, modular basic components and variable mechanical and electronic interfaces, the oil-free double-stage AERZEN screw compressors of the 2C series offer the highest... read more
07/03/2023 - AERZEN at Hanover Fair 2023 | 17. - 21. April Bespoke, efficient and smart solutions for the compressed air, process gas and vacuum technology Just as people need air to breathe, many industrial processes also depend on a reliable supply of process air - be it transporting, ventilating, cooling, mixing, drying or packaging. High-performance... read more
13/02/2023 - Individual ROI calculations from AERZEN The energy-saving potential of wastewater treatment plants is often underestimated. With individual ROI calculations, AERZEN illustrates the considerable cost benefits of highly efficient blower technology in the biological treatment stage and shows what short payback periods can be achieved. Thus... read more
