Science and Technology of Nuclear Installations / 2009 / Article / Tab 1

Review Article

Gas-Cooled Fast Reactor: A Historical Overview and Future Outlook

Table 1

Design data for four early GCFR proposals. The small General Atomics GCFR was envisaged as a prototype, the GBRs were envisaged as large-scale commercial systems. From the three GBR concepts, the GBR-4 was adopted as the reference design. Note: pressure drop is over entire primary circuit for GA design; core only for GBR designs.

Reactor GA GCFR GBR-2 GBR-3 GBR-4

Coolant He He CO2 He
Thermal power [MW] 835 3000 3000 3450
Fuel type pins particle particle pins
Fuel material UPuO2UPuO2UPuO2UPuO2
𝑇 c o r e , i n [ ∘ C ] 323 260 260 260
𝑇 c o r e , o u t [ ∘ C ] 550 700 650 560
Pressure [MPa] 8.5 12.0 6.0 12.0
Pressure drop [MPa] 0.37 0.34 β€” 0.24
Core height [m] 1.0 1.0 1.0 1.4
Core diameter [m] 2.0 β€” β€” β€”
Breeding Gain 0.4 0.43 0.36 0.42
Year of design data 1974 1972 1972 1974

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