calculation · Water Fuel Cell · computed
WFC design session v43: best candidate (Q=92.1, 98.2kHz)
Sweep — Hold the adopted 10mm/50mm geometry near best but hunt the 80-250 Td window through the water/electrode Randles levers (purity, temp, surface treatment) + finer low peak_v/low-duty grid — a lever pair NOT yet swept (prior sweeps chased Q via rod-OD/gap geometry).
- Cell — 10mm rod in 12.0mm tube × 50mm, 1 cell(s) parallel → C_eff = 1.31nF, bulk water R = 130615Ω.
- Water/electrodes (Randles) — 0.1ppm Na+ @ 4°C, surface ×0.5 → λ_D 228nm, C_dl 1.4µF, cell series R 11.6Ω, displacement current 99.1%, breakdown margin ×60.
- Fig-8 voltammetry (4,798,661) — τ_EDL 187309.9µs (18385.9 carrier cycles to charge), Faradaic leakage at peak 47.3mA (leak score 0.66 — keep amp leakage inhibited while voltage climbs the ladder).
- Vapor-film discharge (CGDE onset, 1105V across 0.1mm film) — regime townsend-avalanche, film Paschen 719V, 440 Td.
- Per-molecule (series micro-capacitor chain) — 3.70M molecules across 1.00mm → 298.28 µV/molecule (polarization (µV band)).
- Chokes — 2 × 0.001H (200 turns, AWG 18, 24m wire, AC R 0.9Ω each).
- At resonance f_r = 98.16kHz — Xl = 1233Ω, Xc = 1233Ω, tank Q = 92.1, coil Q = 705.3.
- Cell voltage 1105V from 12V drive (×92.1). Tank current 0.90A circulating (CW upper bound — rate wire/switch for this); average input 18mA at 2% duty.
- No hard violations (band, wire length, dielectric). Average current is scored, not gated.
- Score 0.795.
Basis
- Confidence
- 0.70
- Method
- townsend-v5
- Recorded
- Published
- 30 Aug 2026
- Device
- Water Fuel Cell
- Component
- cell
- Source Ref
- design session v43
- Notebook Id
- 1633
design-loop Q resonance