calculation · Water Fuel Cell · computed
WFC design session v18: best candidate (Q=97.8, 95.9kHz)
Sweep — hold surface_factor at 0.25; push ppm below the 0.1 knee and temperature toward 0°C to test if current drops below 900mA
- Cell — 15.9mm rod in 20.7mm tube × 76.2mm, 1 cell(s) parallel → C_eff = 1.39nF, bulk water R = 128442Ω.
- Water/electrodes (Randles) — 0.1ppm Na+ @ 3°C, surface ×0.25 → λ_D 227nm, C_dl 1.8µF, cell series R 11.1Ω, displacement current 99.1%, breakdown margin ×137.
- Chokes — 2 × 0.00099H (129 turns, AWG 18, 15m wire, AC R 0.6Ω each).
- At resonance f_r = 95.91kHz — Xl = 1193Ω, Xc = 1193Ω, tank Q = 97.8, coil Q = 1068.2.
- Cell voltage 1173V from 12V drive (×97.8), series current 983.5mA.
- All constraints satisfied (current <1A, band, wire length).
- Score 0.832.
Basis
- Confidence
- 0.70
- Method
- townsend-v5
- Recorded
- Published
- 30 Aug 2026
- Device
- Water Fuel Cell
- Component
- cell
- Source Ref
- design session v18
- Notebook Id
- 1362
design-loop Q resonance