Methodology of developing operation strategy for VAC system in subway stations with PSDs and APDs

This research concentrates on energy conservation in ventilation and air-conditioning systems of subway stations through operation. The cooling load calculation method has been elaborated. Then, the operation strategy is developed based on load-calculation. The methodology of operation-strategy development was applied to subway stations with Platform Screen Doors (PSDs) in 3 climate zones with 2 different passenger number phases. As a result, daily operation modes in a year were given and analyzed in the above-mentioned 6 different situations. Moreover, the operation strategy was adjusted to meet the demand of subway stations with Adjustable Platform Doors (APDs). The significance of this research is to propose the methodology of developing the operation strategy, with the processing chain of Load Calculation-Switching Condition Calculation-Daily Operation Mode Development. The whole process is of general applicability for subway stations located in different areas, with different heat source features. Implementing this operation strategy can lead to lower levels of energy consumption in subway stations.