Balance of Plant Overview
Balance of plant is every system around the reactor core that supplies it, converts its output, and keeps it safe and available.
The reactor core — plugs, central cell, throat, and DEC end — does not run alone. Balance of plant (BOP) is the surrounding set of systems that feed it, cool it, convert its output to usable power, and keep it monitored and safe. BOP typically dominates plant part count and much of the operations workload.
Core-supporting systems
- Cryogenics keeps the superconducting coils cold
- Vacuum maintains the ultra-high vacuum boundary
- Fuel handling supplies and manages deuterium and helium-3
- Power conversion conditions the DEC output for delivery
Utility and safety systems
- Heat rejection removes waste heat to the environment
- Cooling water serves auxiliaries and shielding
- Electrical BOP manages house load, output, and emergency power
- Instrumentation and control ties it all together with protection
Design emphasis
Because the burner emphasizes direct energy conversion and a low neutron fraction (5.44%), its BOP differs from a conventional thermal plant: less emphasis on a large steam cycle, more on cryogenics, vacuum, power electronics, and radiological handling of the neutron byproduct. BOP is engineered at design stage against the frozen machine.