The reactor vessel contains the fuel assemblies, control rods and pressurized primary coolant where fission heat is generated.
Active journey stageGenerate fission heat
1/10Controlled fission in fuel assemblies releases heat into pressurized primary coolant.
StatePrimary water heats without boiling in the core.
Engineering authenticityFunctional architecture
DETAILFuel assemblies sit inside a thick forged-steel vessel. Control rod clusters absorb neutrons, while borated water moderates neutrons and transports heat upward through the core.
Major components
Representative parameters
primary pressure ~15.5 MPa classcore outlet ~320°C classlarge thermal power