Electric molten salt heaters - SVN series
Sustainable heat generation for heat storage applications
Electric molten salt heaters from Klöpper-Therm offer an innovative solution for sustainable heat generation in heat storage applications, especially molten salt storage tanks.
Solar thermal power plants (CSP plants) can extend their daily operating times by integrating appropriate heat storage capacities and electric molten salt heaters. The heat storage units usually use so-called solar salt (a molten salt consisting of NaNO3 and KNO3) and are operated at temperatures of up to 560°C.
They are used to store excess heat generated in the solar field during the day and make it available for use at night or during periods of low solar radiation.
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The electric liquid salt heaters developed by Klöpper-Therm play a decisive role here. The plug-in preheaters, which are usually integrated directly into the large storage tanks, serve to maintain the temperature of the molten salt and thus prevent crystallization of the salt for example during dark periods. When designing the heaters, in addition to purely thermal and material-related considerations, their positioning in the tank is particularly important in order to achieve the most homogeneous temperature distribution possible.
The functional principle of storage loading
Another application for Klöpper-Therm liquid salt heaters is the storage of electricity generated from renewable sources. In times of high solar radiation and/or strong wind, surplus electricity is used to charge a heat storage system (liquid salt storage). This increases the temperature of the molten salt, thereby storing the energy in the form of heat. This type of power-to-heat (PtH) application makes it possible to store surplus energy very efficiently and at low cost.
If required, the electricity can simply be recovered by using the heat stored in the salt to generate steam. This steam is converted into electricity using a turbine and a generator and fed into the grid.
Technical data
Manufacturing standard