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

1 January 2000

*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]
Component State of water produced Temperature (°C) produced Pressure (MPa) produced
CANDU-SCWR core Supercritical 625-650 25-26
Hydrogen cycle heat exchanger* Supercritical >600 25-26
HP turbine** Steam 345 5
LP turbine Steam 38 0.0068
Condenser Liquid 38 0.0068
Pump Liquid 39 15
Preheater Liquid 340 15
Pump Subcritical 350 25



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