Over 250 delegates participated in the 2010 District Cooling Summit in Doha, Qatar and attended SIPOS Aktorik’s presentation on actuation solutions for district cooling. SIPOS reports that the level of interest in its paper reinforces the growing popularity of DC as an alternative to building specific cooling systems. The importance of protecting hydraulics was a key focus of SIPOS’ presentation: variable speed capability was detailed, including soft start and stop functionality that addresses the issue of water hammer. Recognising that power supply in some countries can be inconsistent, SIPOS highlighted that its actuators are immune to voltage fluctuations, providing reliable valve control in the harshest environments. With an integrated frequency converter and intelligent electronics, voltage fluctuations to -30% and + 20% are tolerated, the actuator’s electronics stay online and DCS communication continues. Additionally, the torque produced by the actuator is not affected while the output speed is automatically adjusted according to the voltage level. These specialist features from SIPOS’ actuation solution combine to make it attractive for district cooling solutions in challenging power environments. SIPOS’ district cooling credentials were confirmed with a range of U.A.E. installations including Dubai Metro, Yas Island and Al Raha beach.
