Optimization of air conditioning load design index for public areas of subway stations based on field measured data

 In the design process of the air conditioning system, the accuracy of air conditioning load forecasting plays a key role in the rationality of the entire air conditioning system and the saving of operating energy consumption. Based on the field test results of air conditioning load in the public area, internal environment, equipment heat generation, outdoor air volume, and air infiltration at the entrance and exit of a subway station in Xiamen Metro Line 1, this paper analyses the load characteristics of station lighting, advertising lighting, automatic ticket vending machines, automatic ticket checking machines, security inspection equipment, elevators, passengers, outdoor air, and air infiltration loads at the entrance and exit, and discusses the key issues in the calculation of air conditioning load of subway stations. The measured results of various cooling loads and the equipment heat dissipation load index are given, which provides references for the calculation of the air conditioning load of subway stations.