Chilled ceilings

Static cooling systems (chilled ceilings) have, over the past 40 years, proven themselves capable of delivering high levels of occupancy comfort at reduced running costs. Frenger designed, supplied and installed the 'World's Largest Radiant Chilled Ceiling' system in 1962; the 175,000 square meter, 27 stories high, Shell Oil headquarters, situated on the river Thames in London. This building was also the first fully sealed air conditioned building in Europe and was revolutionary at its time as this Chilled Ceiling used the River Thames water to cool the building down. This was achieved by pumping in cool water from upstream to a secondary heat exchanger which in turn cooled (took heat out of the building by 'Radiant' absorption) the building down, then depositing the warmer return water from the secondary heat exchanger downstream. This installation is still operating after nearly 50 years and is a testament to the integrity of the product and to Frenger's design capabilities.