Supercritical-Water-Cooled Reactor System SCWR

Supercritical-water-cooled reactor (SCWR) system... 

The supercritical-water-cooled reactor (SCWR) ( Fig. 58.21) system features two fuel cycle options the first is an open cycle with a thermal neutron spectrum reactor the second is a closed cycle with a fast-neutron spectmm reactor and full actinide recycle. Both options use a high-temperature, high-pressure, water-cooled reactor that operates above the thermodynamic critical point of water (22.1 MPa, 374°C) to achieve a thermal efficiency approaching 44%. The fuel cycle for the thermal option is a once-through uranium cycle. The fast-spectrum option uses central fuel cycle facilities based on advanced aqueous processing for actinide recycle. The fast-spectrum option depends upon the materials R D success to support a fast-spectrum reactor. 

Novog, D., McGee, G., Rhodes, D., Yetisir, M., 2012. Safety concepts and systems of the Canadian SCWR. In Proc. 3rd China—Canada Joint Workshop on Supercritical Water-Cooled Reactors (CCSC-2012), Xi an, Shaanxi, China. 

Supercritical water-cooled reactor (SCWR) safety (Class L) Single-phase coolant passive safety systems. 

In 2002, the Generation IV International Forum selected six systems as Generation IV technologies very-high-temperature reactors (VHTRs), supercritical water-cooled reactors (SCWRs), gas-cooled fast reactors (GFRs), lead-cooled fast reactors (LFRs), sodium-cooled fast reactors (SFRs), and molten salt-cooled reactors (MSRs). As shown in Table 12.1, the spectra of the operating conditions for the six selected types of reactors are versatile [1]. 

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