Operating modes of evaporative cooling assisting to mechanical refrigerating air conditioning in mid-humid region

Analyses the effect of indirect evaporative cooling with pre-cooling before mixing mode and mixing before pre-cooling mode to units, and with an engineering example, compares their advantages and disadvantages through the air system balance, heat and moisture balance, and energy consumption. Analyses the operating mode in winter and transition seasons, providing theoretical and practical basis for the optimization of annual operating modes.