Solution: Air-Water System with Chilled Beams
Chilled beams provide ventilation, cooling/or heating. Working on the principle of induction to drive fresh air across heat exchanger coils, are the most efficient form of cooling with high comfort levels.
With cooling load distributed approximately 25%-75% between air and water, the highest proportion of the load is carried by water with 4 times higher cooling capacity than water, accounting for the highly efficient system.
Occupancy levels are rarely at 100% hence over cooling is the common complaint with CAV chilled beams systems operating on proximity sensing.
Ventilation levels in Open Plan office areas need to be turned down to match occupancy levels. VAV chilled beams with simple CO2 sensing would provide the required demand control at highest comfort levels.