Advanced Nuclear Reactor Designs (Generation IV Reactors)
Generation IV (Gen IV) nuclear reactors are advanced reactor designs being developed as successors to current Generation III reactors. Their goals include improved safety, efficiency, cost-effectiveness, better fuel utilization, and reduced nuclear waste.
The Generation IV International Forum (GIF) has identified six key technologies for this next generation:
|
Technology |
Coolant |
Temperature (°C) |
Key Features |
|
Gas-cooled Fast Reactor (GFR) |
Helium |
850 |
High efficiency, closed fuel cycle |
|
Sodium-cooled Fast Reactor (SFR) |
Sodium |
550 |
Fuel recycling, waste reduction |
|
Lead-cooled Fast Reactor (LFR) |
Lead |
480–800 |
High temperature, long-term operation |
|
Molten Salt Reactor (MSR) |
Fluoride/Chloride Salt |
700–800 |
Thorium use, high safety |
|
Supercritical-Water-Cooled Reactor (SCWR) |
Water/Sodium |
510–625 |
High efficiency |
|
Very High Temperature Reactor (VHTR) |
Helium |
900–1000 |
Hydrogen production, very high temperatures |
Benefits and Challenges
Benefits
- Significant reduction in nuclear waste (waste becomes inert in ....
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