Abstract: A method for operating a directly heated, solar-thermal steam generator is provided. As per the method, a nominal value {dot over (M)}s for the supply water mass flow {dot over (M)} is conducted to an apparatus for adjusting the supply water mass flow {dot over (M)} wherein, at the adjustment of the nominal value {dot over (M)}s for the supply water mass flow {dot over (M)}, account is taken of a correction value KT, by which the thermal effects of storage or withdrawal of thermal energy in an evaporator are corrected.

Abstract: A solar thermal power plant and a method using indirect evaporation are provided. The solar power plant includes a primary circuit having a heat transfer medium conduction system and at least one solar thermal subassembly for heating the heat transfer medium by means of solar energy, a steam secondary circuit having a steam turbine system, and a generator coupled to the steam turbine system. The heat exchanger includes a heat transfer medium conduction system to transfer the heat energy from the heat transfer medium of the primary circuit to the steam superheating stage, the steam generation stage and the preheating stage of the steam secondary circuit which has a bypass around the steam superheating stage and/or the steam generation stage which is fed back into the main current of the heat transfer medium conduction system upstream of the preheating stage.

Abstract: A method for operating a directly heated, solar-thermal steam generator is provided. As per the method, a nominal value Ms for the supply water mass flow M is conducted to an apparatus for adjusting the supply water mass flow M wherein, at the adjustment of the nominal value Ms for the supply water mass flow M, account is taken of a correction value KT, by which the thermal effects of storage or withdrawal of thermal energy in an evaporator are corrected.

Abstract: The invention relates to a heat transfer medium including a mixture containing elemental sulphur and at least one additive and a use of the heat transfer medium. A heat transfer medium including a mixture containing elemental sulphur and at least one additive is indicated. The heat transfer medium is characterized in that the additive includes at least one halogenated hydrocarbon. The halogenated hydrocarbon is, in particular, a chlorinated and/or brominated paraffin. The heat transfer medium is used for reversible energy storage. The heat transfer medium is preferably used for operating a solar thermal power station for converting solar energy into electric energy. Sunlight is converted into heat energy of the heat transfer medium.

Abstract: A solar thermal power plant using indirect evaporation is provided. The solar power plant includes a primary circuit having a heat transfer medium conduction system and at least one solar thermal subassembly for heating the heat transfer medium by means of solar energy, a steam secondary circuit having a steam turbine system, and a generator coupled to the steam turbine system. The system includes a specific interconnection in the heat exchanger in order to improve the overall efficiency of the power plant. A method for operating such a solar thermal power plant using indirect evaporation is also provided.

Abstract: A solar thermal power plant including a solar collector steam generator unit for generating steam, a solar collector steam superheater unit for superheating the steam, and a steam turbine is provided. The solar thermal power plant includes an intermediate storage which is connected to the steam conduit system in a first high-temperature storage connecting point interposed between the solar thermal steam superheater unit and the steam turbine to remove steam superheated in a storage mode from the steam conduit and which includes a heat reservoir in which thermal energy is drained from the steam fed into during the storage mode and is accumulated and the stored thermal energy is given off to the steam in an extraction mode, steam being fed to the steam conduit system from the intermediate storage. The intermediate storage is connected to a condenser and/or a relaxation device of the plant in a low-temperature storage connecting point.

Abstract: A solar-thermal power plant is provided. The solar-thermal power plant includes a working fluid circuit, a solar steam generator based on direct evaporation and a steam turbine for relieving the working fluid on a relief path while the working fluid supplies technical work. The solar-thermal power plant also includes at least one intermediate superheater, which can be heated using the working fluid. The working fluid may be removed from the circuit upstream of the intermediate superheater and superheated using the working fluid thereof, which can be fed downstream of the heating removal using the relief path. A method for operating a solar-thermal power plant is also provided.