2.4 Determination of steam generation
The determination of steam generated during nights or cloudy periods follows the energy balance of the superheater and evaporator. As first solar beam appears the plant works as ISCC and the amount of steam generated is the double Since ISCCS plants consists of two HRSG. To recover some heat from the solar filed a solar steam generator HSSG is used, made up of one heat exchanger:  evaporator section. Referring to Rankine-Hirn cycle (Fig. 3), the steam mass flow generated during the day is evaluated as follows: