Table 1: Posited SCWR coolant stream, with fluid state produced by component

*An additional output of 525°C, 15 MPa steam goes to the preheater
**Hydrogen loop uses helium pressurised to 2 MPa; temperature varies between 600°C (after heat exchanger) to 250°C (after all steps of hydrogen cycle)
Table figures are based on existing fossil fuel power plants using a supercritical water turbine. Temperature and pressure values calculated according to water stream enthalpy change and expansion ratio [3, 26]