January/February 2020

COMPRESSED AIR 54 HYDRAULICS & PNEUMATICS January/February 2020 www.hpmag.co.uk control system that is integrated in a specially designed control room cabinet. “All ALS equipment will be manufactured in Norway, close to our Oslo headquarters, to enable continuous follow-up by our expert technicians during the assembly phase,” says Tanum. For air lubrication systems, air bubble outlets are created at different locations along the bottom of the hull, ideally symmetrically on both the sides of the ship’s centre line. In combination with TMC’s ALS compressors, the system can continuously ensure that a uniform layer of air bubbles is maintained beneath the ship, and as a result produce the desired energy-saving effect. “With the right ship hull design, the air lubrication system can generate substantial reductions of both fuel and CO2 emissions, with an associated decrease of the vessel’s operating costs. We are proud to offer a compressed air product that can help ALS become more mainstream in the shipping and offshore industries,” adds Tanum. www.tmc.no TMC Compressors of the Seas (TMC) is launching a range of marine compressors for use in combination with air lubrication systems (ALS) to help ships further reduce fuel consumption and emissions to air. Air lubrication system is a method used to reduce the resistance between the ship’s hull and seawater by using air bubbles. The air bubble distribution across the hull surface reduces the resistance working on the ship’s hull, creating energy-saving effects. TMC’s marine compressed air systems for air lubrication systems can be utilised to generate the required stream of air bubbles that passes continuously beneath the ship’s surface, thereby reducing frictional resistance between the hull and the seawater. “We have a duty to both our customers and the globe to continuously make our products even more energy efficient and less harmful to the environment. This responsibility extends to identifying new usage areas for our marine compressed air technology, such as in combination with air lubrication systems,” says Hans Petter Tanum, TMC’s director of sales and business development. Wide selection TMC will offer a wide selection of large compressors for air lubrication system applications, ranging from 50 kW to 400 kW capacity. TMC has also developed an associated electronic ALS TMC launches ALS compressors for the shipping and offshore Atlas Copco has launched the DZS 100 - 400 VSD+ series of air-cooled, oil-free claw vacuum pumps for particularly harsh applications. The robust pumps increase productivity in conveying, clamping, drying processes or environmental applications due to their low energy consumption and space requirements as well as handling of pollutants. Atlas Copco has equipped the three models of the DZS 100, 200 and 400 VSD+ series with corrosion-resistant materials to make them well equipped for harsh application environments. For this purpose, they also have a durable internal coating. The new vacuum pumps are specifically designed for a long service life and reliable, efficient operation, even under robust process conditions. In addition, the design principle requires uncomplicated maintenance. For example, cleaning or replacing the pump claws does not require complex gearbox stripping and retiming. This allows quick access to the inside of the pump by service technicians or the end customer. It also simplifies maintenance processes, such as the removal of product residues. No new synchronisation is necessary during the subsequent assembly. This results in reduced downtime and lower service costs for the operator. No oil-induced contamination A VSD+ inverter drive is integrated in the motors to control the pumps. This allows the optimum performance points of the claw pump to be specifically controlled and power consumption to be reduced. This function ensures that energy is saved, and the CO2 footprint is reduced. Sustainability is also ensured in the immediate process environment: the completely oil-free DZS VSD+ pumps certified to ISO 8573-1 Class 0 and are completely harmless to the quality of the ambient air during operation. This eliminates the risk of oil-induced contamination and damage to sensitive applications and products in the environment. Commissioning via App With the newly developed VSD+ App, users have quick access to numerous parameters. Via iOS and Android devices, values such as inlet pressure, rotor speed, running hours and service intervals can be monitored and controlled at a glance in real time. The VSD+ App also makes it easy to commission the DZS VSD+ vacuum pump – via the three parameters target pressure, start/stop delay and stop level. www.atlascopco.com/Compressors Atlas Copco launches intelligent vacuum pump series