calculation · Water Fuel Cell · computed
WFC design session v14: best candidate (Q=97.5, 95.6kHz)
Sweep: Vary gap/length/cell-count at fixed adopted water point (0.1ppm/3°C) to find geometry that drops series current below 900mA without sacrificing Q
Cell: 21.8mm rod in 26.8mm tube × 60mm, 1 cell(s) parallel → C_eff = 1.40nF, bulk water R = 127678Ω. Water/electrodes (Randles): 0.1ppm Na+ @ 3°C, surface ×0.5 → λ_D 227nm, C_dl 3.8µF, cell series R 11.1Ω, displacement current 99.1%, breakdown margin ×143. Chokes: 2 × 0.00099H (129 turns, AWG 18, 15m wire, AC R 0.6Ω each). At resonance f_r = 95.62kHz: Xl = 1190Ω, Xc = 1190Ω, tank Q = 97.5, coil Q = 1066.3. Cell voltage 1170V from 12V drive (×97.5), series current 983.6mA. All constraints satisfied (current <1A, band, wire length). Score 0.831.
Basis
- Confidence
- 0.70
- Method
- townsend-v5
- Recorded
- Published
- 30 Aug 2026
- Device
- Water Fuel Cell
- Component
- cell
- Source Ref
- design session v14
- Notebook Id
- 1354
design-loop Q resonance