calculation · Water Fuel Cell · computed
WFC design session v15: best candidate (Q=97.5, 95.6kHz)
Sweep — Hold geometry/cells at adopted #1 (21.8/26.8mm×60mm), jointly sweep surface_factor lower with ppm/temp low-range to attack the ionic branch (Cdl/λ_D) directly rather than fighting it via capacitor geometry
- 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 ×0.25 → λ_D 227nm, C_dl 1.9µF, 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 v15
- Notebook Id
- 1356
design-loop Q resonance