Method and thermal storage system for solar steam generation plant and solar steam generation plant

摘要

The invention relates to a heat storage method and system for a steam generation plant, and to the solar plant comprising said system. The method according to the invention minimises the charging and/or discharging effect in conditions that differ from the nominal conditions by means of a system consisting of three blocks: i) a saturating block based on phase-change materials, ii) an over-heating block that increases the temperature of the steam of the heat-transfer fluid to the desired values, and iii) a pre-heating block that increases the difference in temperature between a cold tank and a hot tank of a heat storage material without phase change.