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The scalability of nuclear energy is often limited by boutique fuel and heavy-forging supply chains. ReCore explores whether a serial, modular manufacturing model — using existing material classes and factory content — could reduce those bottlenecks. That is central to the Why?: schedule, sovereignty, and constructability are design drivers, not afterthoughts. This page is part of an engineering hypothesis, not a claim that serial production is already proven for this plant.
A major bottleneck for some advanced reactors is specialised fuel that lacks industrial scale.
Many proposed SMRs and advanced designs rely on:
ReCore aims to reduce dependence on those bottlenecks by using materials already in the nuclear system (after processing):
Exact global tonnages are order-of-magnitude public figures and change with inventories; the design point is use existing stocks, not invent a new fuel form. See Fuel Science.
Long-term storage of spent fuel and separated materials carries security, monitoring, and fiscal costs. A closed-cycle path is intended to turn portions of those inventories into fuel feedstock — it does not instantly eliminate every storage site or security obligation.
Once recycle capacity and a reactor fleet exist, multi-recycle could reduce dependence on continuous enrichment imports for equilibrium cores. That is a fleet fuel-cycle goal (see ReCore-Processing, sensitive to throughput, losses, and licensing — not a FOAK day-one fact.
ReCore explores shifting work from unique mega-projects toward factory-oriented modules — a construction hypothesis aligned with nuclear’s main cost driver: schedule and site risk.
LWR fleets depend on thick high-pressure vessels that only a few forges can produce.
Primary Na→N₂ hybrid helical HX units are intended to use nuclear-grade high-temperature tube and shell supply: Alloy 709 seamless internally finned single-wall tubes, twisted-tape inserts, a single tubesheet, helical bending, and NDE. Alloy 709 is chosen over 316LN/316H for creep strength at ~600 °C / 80 bar and for formability (less nitrogen strain-hardening during fin drawing, helical bend, and tubesheet work). No vendor currently ships this Na–N₂ helical heater as a catalog item — internally finned Alloy 709 coiling is a qualification article, not a purchase order. Brayton recuperator / precooler / intercooler units are a separate class: high-ε, low-ΔP gas exchangers where advanced (including AM complex helical) designs are the ambitious path. Gyroids are not used on the sodium boundary. Vessel/piping remain 316LN. Cladding baseline is HT9 (upgrade path at reload: e.g. P92 / NF616 / Grade 92) — see Advanced Engineering.
Not “cheaper by assertion.” Possible reductions if modular atmospheric construction and existing-stock fuel work: forgings, site duration, enrichment dependence. Possible increases: sodium systems, remote fuel fabrication, pyro hubs, FOAK licensing, integration. Balanced discussion also on main.
ReCore investigates whether multiplicity (many identical modules) and factory content can decouple nuclear deployment from twentieth-century monolithic supply chains. That remains to be demonstrated for this architecture.
Why? · ReCore-Reactor · ReCore-Processing