1.Overview Due to the wide temperature rang of molten salt in liquid state, the strong heat-carrier capacity and low requirements on pressure-bearing of equipment, in integrates the function of the heat-exchange fluid and the heat-storage fluid. Meanwhile, with molten salt as the heat-exchange fluid, the steam parameters can be increased and thus the generating efficiency of the system will be improved, the heat-exchange process will be simplified and energy loss will be reduced. So high-capacity thermal storage as well as continuous and stable large-scale generation will be easily achieved.
3.Operating Mode 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. Mode 4： Other auxiliary mode, such as molten salt pipeline and equipment heating mode, etc.
4.Application and Condition Application: Large-scale and long storage time power generation Condition: DNI≥ 1600kW.h/m2/yr, traffic, transportation, environment, power network distance, etc.
Table 1 Typical Molten Salt CSP Plant
Table 2 Reference Value of Typical Molten Salt CSP Station
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