Abstract
Publisher Summary This chapter discusses the thermal energy storage system for nonfossil power plants—nuclear and solar power plants. Integrated thermal energy storage within the nuclear power plant is one of the most promising possibilities to achieve base load operation of the reactor and, at the same time, to cover daily demand peaks by means of the nuclear power plant: The base load operation of the reactor island minimizes temperature cycling of the fuel and makes maximum use of this capital cost intensive plant item; it is, therefore, the safest and most economic way of reactor operation. Using the nuclear power plant for peaking by means of energy storage also saves the need for a separate peak load plant and eliminates the need to use scarce and expensive peak load fuel (light oil, kerosene, and natural gas) with low efficiency. The solar thermal power plant exhibits several special features that make integrated thermal energy storage even more necessary. The chapter presents a flow sheet with H2O saturated steam storage in a solar steam plant with direct steam generation in the receiver (single cycle). Charging is done by means of live steam and feed water and discharging via a series of flash evaporators.
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