Study of Chilled Water Storage System in Subway Engineering: A Case Study of a Subway Station in Guangzhou

Based on the distribution of cooling load at a subway station and the peak-valley electricity price in Guangzhou, a chilled water storage system is reserved in the ample space above the station’s distribution area. This study proposes a design scheme and operational strategy for a chilled water storage system suitable for subway engineering, based on calculating the cooling load and designing a chilled water storage system in a subway station. Additionally, it proposes calculation coefficients of hourly cooling load suitable for subway engineering and convenient for estimation of hourly cooling load. Furthermore, an economic analysis is conducted by combining hourly cooling load with time-of-use electricity prices. This study provides a reference for the design and application of chilled water storage systems in subsequent subway projects.