A major chiller replacement project at Skandia’s landmark building in Southampton will save the global financial services company an estimated £20,000 a year in energy costs.
The company has replaced two existing chillers operating on R407C refrigerant with ultra-efficient Turbomiser machines, manufactured by Italian company Geoclima and supplied by UK distributor Cool-Therm (UK) Ltd.
The units are delivering immediate energy savings and a high quality working environment for the company’s 1000 plus headquarters staff.
The chiller replacement is part of a major upgrade by Skandia of its facilities in Southampton. The three year project has involved investment in new IT systems, building modernisation, and a drive to cut carbon emissions and improve energy efficiency.
The project involved replacing two original screw compressor-based chillers with new 1.05MW Turbomiser units, based on oil-less magnetic bearing centrifugal compressors. One of the existing units was a free-cooling chiller, requiring the building’s entire chilled water system to be filled with 25 per cent glycol to minimise the risk of freezing. This required in excess of 20,000ltrs of glycol.
The previous free-cooling approach also relied on significant inputs of pump and fan power, and reduced the efficiency of heat exchange in air handling units and fan coils around the building. Because of the exceptional energy performance of Turbomiser technology at all seasonal conditions, it was possible to overcome the need for an expensive glycol-based system – while achieving improved performance and efficiency.