Application analysis of outdoor air cooling technology in commercial complexes in hot summer and cold winter zone

The way to improve the traditional terminal outdoor air system in the inner area of the commercial complex is adopting an all-air air conditioning system with an adjustable outdoor air ratio in the public area and using the parallel system of outdoor air conditioning units and outdoor air fans in the shops. Through calculation and analysis, under the premise of satisfying comfort, natural outdoor air can be used to undertake the cooling load in the inner area of the commercial complex in the transitional season and winter in the hot summer and cold winter zone. The energy-saving effect of this scheme is more obvious than that of the “free cooling” of the cooling tower. For general commercial complex projects, four-pipe or two-pipe air conditioning systems can be eliminated to simplify the air conditioning water system and save investment.