HVAC system design for dispatching hall in a city rail transit operation command building

This paper presents the air conditioning system design of a city rail transit operation command building. Aiming at the dispatching hall, CFD simulation is used to compare and analyse the thermal comfort of the personnel activity area in two air supply modes. Through the analysis, it is concluded that the mode combining the outdoor air supply at the station and the swirling air supply at the top can better meet the requirements of indoor thermal comfort in the hall. In addition, the CFD simulation results are verified by field measurement.