Solar thermal power plant having a bypass conduction path bypassing the superheating and/or steam generation stages of the solar circuit and using indirect evaporation and method for operating such a solar thermal power plant

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.