For generating with water as the heat-carrier fluid, there are the advantages of mature technology, easy process, and low investment and operation costs and so on. But, the cost of larger-scale steam thermal energy storage is high. Meanwhile, steam thermal energy storage tanks are adopted or with natural gas through a process referred to as hybridization, are able to further increase output and reliability.
Mode 1：Charging mode. The receiver and thermal energy storage system in operation, and the turbine unit stops. Mode 2：Charging and power generation mode. All the receiver, thermal energy storage, steam generator, and turbine in operation. Mode 3：Power generation mode. Only the steam generator and turbine in operation, the receiver stops.
4.Application and Condition
Application: Daytime power generation or short storage time power generation Condition: DNI≥ 1600kW.h/m2/yr, traffic, transportation, environment, power network distance, etc.
Table 3 Typical Water Medium CSP Plant
Table 4 Reference Value of Typical Water Medium CSP Station
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