Chiller energy optimization systems versus building automation systems

摘要

Chilled water systems are a significant portion of a building's energy use, sometimes accounting for up to 40% of peak electric demand and 15% to 25% of annual electrical energy usage for a large building. As such, efforts to reduce the amount of energy used by a chilled water system are worthwhile. Control sequences in the building automation system are written to identify and respond to variables that impact chilled water system energy. Engineers write and BAS vendors implement control sequences that are intended to meet the system demand, operate within safe parameters, protect the equipment and perform those tasks as efficiently as possible within the capability of the BAS.