Cooling coil characteristics of air handling units

Dynamic changes of running parameters have a great impact on the heat transfer characteristics. Simulates and analyses the dynamic heat transfer characteristics of cooling coils of air handling units used in the constant air volume (CAV) system with primary air and the variable air volume (VAV) air conditioning system. The results show that the heat transfer characteristics in the CAV system are noticeably influenced by inlet air parameters and inlet chilled water temperature，and the characteristics in the VAV system are almost irrelevant with inlet air parameters.