More Star Turbocor chillers are installed at the University of Strathclyde
Following good experience with a Star Indigochiller installed to provide air conditioning for a building on the Glasgow campus of the University of Strathclyde, two more have been installed to replace aging plant in the Curran building. These chillers have Turbocor centrifugal compressors, which have magnetic bearings, so no oil is needed. This 6-storey building houses the Andersonian Library, which houses university archives, books, journals and electronic resources.
The previous plant used R22, which is being phased out because of its ozone-depletion potential. The new chiller uses R134a and has a robust design that aims to eliminate refrigerant leakage.
The two Indigochillers each have a cooling capacity of 750 kW and are installed on the roof. They supply chilled water at 6/12°C to air-handling units.
Indigochillers have been designed for efficient operation and are said to use 40% less energy than a standard chiller operating on typical load and ambient profiles.
These chillers are available as air-cooled or water-cooled with cooling capacities from 250 to 1650 kW. A PLC control system can monitor refrigerant charge and running conditions to optimise efficiency.
