Energy saving research of dedicated hydroelectric air conditioning system for hydropower station

The system applies the deep layer reservoir water as cold and heat source, which has four energy saving operation modes including free cooling mode both in the transition season and in winter, the refrigeration mode in summer, the precooling mode for fresh air in summer and the heating mode in winter. Presents the operation principle and technical points, and analyses its energy saving effect. Presents the reconstruction benefits of Three Gorges Project. Compared with conventional central air conditioning system, such as the combination of air-cooled chiller (heat pump) and terminal unit or the combination of water-cooled chiller and terminal unit, the system is superior in flexibility, energy efficiency rate and operation stability.