calculation · Water Fuel Cell · computed
WFC design session v23: best candidate (Q=26.9, 99.0kHz)
Sweep — Hold ppm/temp at #1-4's avalanche-crossing values (0.1ppm, 60C) and sweep geometry — larger rod OD, wider gap, longer electrodes — to pull f_r below 100kHz without dropping out of the 80-250 Td window.
- Cell — 18mm rod in 24.0mm tube × 50mm, 1 cell(s) parallel → C_eff = 0.65nF, bulk water R = 70315Ω.
- Water/electrodes (Randles) — 0.1ppm Na+ @ 60°C, surface ×1 → λ_D 250nm, C_dl 3.8µF, cell series R 88.1Ω, displacement current 96.6%, breakdown margin ×552.
- Vapor-film discharge (CGDE onset, 323V across 0.1mm film) — regime constants-out-of-range, film Paschen 719V, 129 Td — INSIDE the 3-6 eV cold-chemistry window.
- Chokes — 2 × 0.002H (260 turns, AWG 22, 31m wire, AC R 2.1Ω each).
- At resonance f_r = 98.98kHz — Xl = 2488Ω, Xc = 2488Ω, tank Q = 26.9, coil Q = 584.2.
- Cell voltage 323V from 12V drive (×26.9), series current 129.9mA.
- All constraints satisfied (current <1A, band, wire length).
- Score 0.548.
Basis
- Confidence
- 0.70
- Method
- townsend-v5
- Recorded
- Published
- 30 Aug 2026
- Device
- Water Fuel Cell
- Component
- cell
- Source Ref
- design session v23
- Notebook Id
- 1399
design-loop Q resonance