calculation · Water Fuel Cell · computed
WFC design session v26: best candidate (Q=78.9, 69.8kHz)
Sweep — screen-guided: live [Water purity, Temperature], refined score 0.742
- Cell — 18mm rod in 34.0mm tube × 25mm, 8 cell(s) parallel → C_eff = 1.53nF, bulk water R = 127048Ω.
- Water/electrodes (Randles) — 0.1ppm Na+ @ 1°C, surface ×0.25 → λ_D 227nm, C_dl 6.3µF, cell series R 17.5Ω, displacement current 98.8%, breakdown margin ×566.
- Vapor-film discharge (CGDE onset, 947V across 0.1mm film) — regime townsend-avalanche, film Paschen 719V, 378 Td.
- Chokes — 2 × 0.0017H (180 turns, AWG 18, 21m wire, AC R 0.7Ω each).
- At resonance f_r = 69.82kHz — Xl = 1492Ω, Xc = 1492Ω, tank Q = 78.9, coil Q = 1081.4.
- Cell voltage 947V from 12V drive (×78.9), series current 635.1mA.
- All constraints satisfied (current <1A, band, wire length).
- Score 0.742.
Basis
- Confidence
- 0.70
- Method
- townsend-v5
- Recorded
- Published
- 30 Aug 2026
- Device
- Water Fuel Cell
- Component
- cell
- Source Ref
- design session v26
- Notebook Id
- 1410
design-loop Q resonance