Importance

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Abstract

A thermal power plant includes a unit producing heat energy, a regenerator including energy-storage elements, a consumer of heat energy, and a circulation device. During charging, the circulation device circulates a charging heat-transfer fluid from the unit producing heat energy through the regenerator, entering the regenerator at a charging temperature of less than 1000° C. During discharging, the circulation device circulates a discharging heat-transfer fluid through the regenerator, entering the regenerator at a discharging temperature. The energy-storage elements have material with a melting point higher than the charging temperature plus 50° C. and lower than 2000° C. The concentration of all elements leached from the material is less than or equal to 0.5 g/l. The material of the energy-storage elements has a characteristic ratio higher than 0.3, with: A=(Cp(Tc)−Cp(Td))/Cp(Td), where Cp(Tc) and Cp(Td) are the specific heat capacity of the material at the charging and discharging temperatures, respectively.

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First Claim