Guangdong Daya Bay Nuclear Power Station
Technical data
| Number of generating units | 2 |
Power
| NSSS thermal power | 2905 MWt |
| Gross electrical power | 984 MWe |
| Net electrical power | 944 MWe |
| Frequency | 50 Hz |
Reactor Core and Fuel
| Active core height | 3.66 m |
| Active core diameter | 3.04 m |
| Fuel inventory | 72.4 t HM |
| Total number of assemblies | 157 |
| Fuel material | UO2 |
| Enrichment, initial core | 1.8%, 2.4%, 3.1% |
| Enrichment, reload | 3.25% |
| Assembly type | AFA |
| Number of rods per assembly | 264 |
| Rod configuration | 17*17 |
| Cladding material | Zircaloy 4 |
| Number of fuel cycles to full burnup | 3 |
Reactor Vessel
| Material | 16 MND5 |
| Shape | cylindrical |
| Wall thickness | 200 mm |
| Height | 13.174 m |
| Inner diameter | 3.99 m |
| Mass | 327 t |
| Manufacturer | Framatome |
Containment
| Type | cylindrical |
| Design pressure | 5.2 bar |
Reactor Cooling System
| Coolant | water |
| Operating pressure | 155 bar |
| Core inlet temperature | 293 °C |
| Core outlet temperature | 327 °C |
| Total coolant mass flow | 68520 t/h |
| Number of loops | 3 |
| Number of primary pumps | 3 |
| Number of steam generators | 3 |
| Primary pump | |
| Voltage | 6.6 kV |
| Mass | 105 t |
| Manufacturer | Jeumont Schneider |
| Steam Generator | |
| Mass | 330 t |
| Tube material | Inconel 690 |
| Manufacturer | Framatome |
Steam Cycle
| Steam flow rate | 1617 kg/s |
| Steam pressure (SG outlet at full power) | 68.9 bar |
| Steam temperature (SG outlet at full power) | 284.6 °C |
| Steam humidity (SG outlet at full power) | 0.25% max |
| Condenser pressure | 75 mbar |
| Turbine Generator | |
| Maximum rating | 984 MWe |
| Speed | 3000 rpm |
| High pressure cylinder | 1 double flow |
| Low pressure cylinders | 3 double flow |
| Generator rating | 1157 MVA |
| Generator voltage | 26 kV |
| Manufacturer | GEC |
| Condenser | |
| Cooling medium | sea water |
| Cooling medium flow rate | 44 m3/s |
| Cooling medium temperature | 23 °C |
| Tube material | titanium |
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University of California, Berkeley | LBL 50A-2112 | Administrator: Shuo Wang