Energy-saving analysis of chilled water graded use air conditioning system in Guangzhou metro station hall

Analyses the cooling load characteristics in Guangzhou metro station hall, and points out that the change of people number is the main reason that causing the corresponding cooling load and fresh air volume change. Puts forward a new chilled water graded use air conditioning system based on temperature and humidity independent control, and analyses the energy-saving of the new system compared with the traditional air conditioning system in metro station.