ACP600 is a medium-sized advanced pressurized water reactor product independently developed by CNNC. Based on mature nuclear power technology of CP600, it takes reference of the design philosophy of the advanced PWRs around the globe, adopts the ‘Active + Passive’ safety design technology and is able to meet utility requirements for Gen III NPP.
Proven
Safe
Economic| No. | Design Description | Unit | Parameters |
|---|---|---|---|
| 1 | Nominal Electric Power | MWe | ≥670 |
| 2 | Designed Lifetime | Year | 60 |
| 3 | Refueling Cycle | Month | 18(with capability to extend to 24 months) |
| 4 | Plant Availability | % | ≥90 |
| 5 | Peak Ground Acceleration | g | 0.3 |
| 6 | Core Damage Frequency | 1/reactor year | ＜1×10-6 |
| 7 | Large Release Frequency | 1/reactor year | ＜1×10-7 |
| 8 | Occupational Exposure Dose | m Sv/reactor year | ＜0.5 |
| 9 | Operator Nonintervention Period | Minute | ＞30 |
| 10 | Plant Autonomy Period | Hour | 72 |
Inner shell
Prestressed reinforced concrete with a leak-tight steel liner inside High tensile strength
Outer shell
Reinforced concrete Withstanding large commercial aircraft crash
Annular space
Keeping negative pressure Collection and filtration of the leak
Beyond-Design-Base-Accident(BDBA)/Severe Accident(SA) Prevention and Mitigation
| Phenomena | Containment failure | |
|---|---|---|
| Containment failure | Hydrogen Detonation | Containment Hydrogen Combination System |
| High Pressure Molten Corium Ejection, Direct Containment Heating, Induced SGTR | Fast Depressurization System for RCS | |
| Long Term Overpressure | Containment Filtration and Venting System Passive Containment Heat Removal System | |
| Basement Melt-through | Reactor Cavity Injection and Cooling System | |
| Station Blackout | Passive Residual Heat Removal System of Secondary Side | |
| Other Measure | RPV High-point Venting System, Habitability Design of Main Control Room, SAMG and etc. | |
