Evaporative condenser is an energy efficient and environmentally friendly air conditioning
equipment. This paper proposed an air conditioning system using dual independent
evaporative condenser and investigated the cooling performance. Many factors, such as
evaporator water inlet temperature, compressor frequency, air dry-bulb temperature, air
velocity and water spray rate, which influenced the cooling performances of air conditioning
system with evaporative condenser have been investigated. The results indicated
that cooling capacity and coefficient of performance (COP) increased significantly with the
increasing of evaporator water inlet temperature (12e25 C), the air velocity (2.05
e3.97 m s1) and the water spray rate (0.03e0.05 kg m1 s). However, COP decreased with
the increasing ambient air dry-bulb temperature (31.2e35.1 C) and the compressor frequency
(50e90 Hz). Furthermore, the heat transfer coefficient (K0) was 232e409 W m2 K1
in different air velocity and water spray rate.