55. Research and Apply on DCS-Based Water-Source Heat Pump System

District cooling technology is advantageous in warm and hot climatic regions, in that chilled water from a central refrigeration plant is delivered through a distribution network to groups of buildings in an urban district. At a central refrigeration plant, chilled water is generated and supplied to a district to support the air-conditioning systems in buildings. Because of the large scale production, the chiller plant is higher in efficiency than those in individual buildings. Therefore, district-cooling system (DCS) has been applied in a number of countries. In the paper, the technical requirements and the cooling scheme options in the context of the urban environment are discussed. A government-commissioned feasibility study of a proposed district cooling site in Chong Qing is then described. The Results indicate that, firstly the technology is most suitable for new urban developments where system design and construction receive much freedom; secondly the areas, which near a river, are ideal sites for the application of water-source heat pump technology (WHP) to provide district cooling and heating; lastly a large number of benefits, such as economic benefit and environment economic, will be obtained in this project.