Commercial buildings account for approximately 32% of the world’s energy consumption whereas HVAC plants in these buildings consume anywhere between 40% and 70% of the total electricity consumption, among different energy end-uses in buildings, the Heating, Ventilation, and Air-Conditioning (HVAC) systems account for about 40% of building energy consumptions. of which can be attributed to the Chillers in the HVAC. Chillers have become an essential HVAC component of a wide variety of commercial facilities, including hotels, restaurants, hospitals, sporting arenas, industrial and manufacturing plants, etc.
The electricity bill paid by commercial buildings (shopping malls, shopping centers, office buildings, airports spaces, smart cities), is dominated by the energy consumption of these HVAC systems, is often in the top-three list of an organization’s operating expenses. This trend is putting upward pressure on facility managers to reduce operational costs and improve the energy efficiency of these buildings by means of reducing the electricity consumption associated with operations of HVAC systems.