// multi-utility computation suite · offline · instant · precise
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sci.reactor-power-density Calculator
Calculates reactor power density from neutron flux, fission cross-section, and fissile material loading: P = Σf × φ × E_fission per unit volume. PWR power density: 100 kW/litre (typical) — fuel rod surface heat flux is the limiting parameter, set by the onset of nucleate boiling departure.
Inputs
Thermal Power Mw
Rate of energy transfer (W). P = V×I (electrical). P = F×v (mechanical). 1 horsepower ≈ 746 W.
Core Volume M3
Three-dimensional space occupied (m³ or L). 1 m³ = 1,000 L.
Fuel Loading Tonnes U
Applied force or weight (N or kN). Divide into dead load (permanent) and live load (variable — people, wind, etc.).
Capacity Factor Pct
Maximum throughput or storage. Operating near 100% capacity typically increases failures and wait times.
Results
power density (MW/m³)
Sample size or count used in the calculation.
specific power (kW/kg U)
Reference formula or conversion factor shown for context.
estimated burnup (GWd/tU per year)
The value at the specified point or condition.
electrical output (est. MWe)
Reference formula or conversion factor shown for context.
PWR typical
Reference formula or conversion factor shown for context.