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Influence of E-Wheel Efficient Impeller: Noise and Energy

With an ever growing focus on system efficiencies, manufacturers of industrial equipment must take into account individual components to ensure that these key influencing factors achieve the desired energy savings. Replacing inefficient components that are often overlooked in ventilation systems, can result in sizeable gains. A significant component in such systems is an efficient impeller. Noise Attenuation Driven by an increased market requirement concerning noise levels, the new E-series impeller design produces major reductions in operati...


Rosenberg: A Supplier Profile – Part 2

Last week we kicked off a series of supplier profile posts with an introduction to our German supply partners, Rosenberg. Now we’ve given you an insight into their history and location we thought we’d get to the really important stuff and tell you about what they actually do. Rosenberg support all areas of heating, ventilation and air conditioning (HVAC) including residential and commercial buildings, hotels and restaurants, museums and galleries, airports, gyms and exhibition centres. Their fan range is pretty comprehensive and includes ...


Rosenberg Extends ‘Cooler & Quieter’ EC Range

A number of fans in Rosenberg’s backward curved EC (Electronically Commutated) range are now available with 5.5 kW motors. The new GKHB Series features five powerful, yet efficient fans, all capable of running cooler and quieter than their AC equivalents, while using less energy. Available in 450 mm, 500 mm, 560 mm, 630 mm and 710 mm, GKHB Series fans are all equipped with three-phase motors with nominal input voltages of 230V and 460V. 100% speed controllable and capable of delivering 23, 800 m³/h (14,000 CFM) of airflow at free air; they ...


Slow Down & Save Money – The Many Benefits of Using an Inverter

The notion of ‘slowing down’ generally isn't top of the list when businesses are trying to save money, however, in the case of fan systems, it can be the ideal option. In most cases, fans are sized and installed to match the maximum ventilation requirements. Installing an inverter allows you to control the speed of your fan motor to match the actual ventilation needs. Reducing the speed of your motor will reduce the amount of energy needed to power it (by as much as 8 times the reduction in speed), which in turn will cut your costs. M...