Improving the flexibility of coal-fired power units is the key to achieving a green and low-carbon power system. Molten salt energy storage technology
as a sensible heat energy storage technology
can provide frequency regulation
peak regulation
and industrial heating decoupling support for power generation units. Combining with the engineering application of a coal-fired power unit coupled with molten salt energy storage
the thermal performance of heat storage
heat release and energy cycling are systematically analyzed
and performance evaluation indicators are proposed. The results show that
the molten salt thermal storage system significantly enhances the flexible operation capability of the unit
achieves decoupling between industrial steam supply and deep commissioning peak of the unit
and improves the frequency regulation performance by 150%. The thermal efficiency of the thermal storage system is maintained at around 92%. This study provides a reference for the application of flexibility renovation projects for coal-fired power plants based on molten salt thermal storage technology.
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references
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