It
is well-known that air-cooled condensers having the same heat
transfer surface,but various geometries result in different system
performance.Therefore,optimization of the condenser coil configuration is required to enhance the energy efficiency of the system.In an air-cooled condenser the refrigerant enters the condenser and usually leaves as a sub-cooled liquid. Several studies have
shown that applying strategies to enhance the sub-cool tempera-ture can increase significantly the energy saving potential of HVAC systems