Application of distributed air conditioning devices to Beijing Daxing International Airport terminal

The energy consumption of the air conditioning system in the airport terminal accounts for a relatively large proportion of the energy consumption of the airport, and the air conditioning form of large internal space has a certain impact on the energy consumption of the air conditioning system. Based on the stratified air conditioning formed by the conventional all-air system using large space electromechanical units for air supply, proposes a distributed air conditioning device, which closes to the service area as possible and uses the water transmission instead of the wind transmission, thereby reducing the transportation energy consumption. Analyses the influencing factors of the device, and simulates the annual dynamic load and energy consumption of the distributed air conditioning devices in a certain area. The calculation results show that the annual energy consumption of the pumps and fans of the distributed air conditioning system is 21.8% lower than that of the conventional all-air system. According to the A-weighted noise measurement, the noise value at a distance of more than 1 m from the device surface is close to the ambient noise, and the overall difference is less than 1 dB, indicating that the noise of the device has no effect on the indoor environment.