calculation · Water Fuel Cell · computed
WFC design session v37: best candidate (Q=51.1, 84.5kHz)
Sweep — Deliberately lower Q and trim peak_v to pull V_cell into ~250-400V, widen gap sweep to drop film Paschen and land Td inside 80-250, holding purer/colder water for a low leakage floor.
- Cell — 10mm rod in 12.0mm tube × 75mm, 1 cell(s) parallel → C_eff = 1.97nF, bulk water R = 87077Ω.
- Water/electrodes (Randles) — 0.1ppm Na+ @ 4°C, surface ×0.4 → λ_D 228nm, C_dl 1.7µF, cell series R 10.5Ω, displacement current 98.9%, breakdown margin ×33.
- Fig-8 voltammetry (4,798,661) — τ_EDL 149848.0µs (12659.0 carrier cycles to charge), Faradaic leakage at peak 105.0mA (leak score 0.49 — keep amp leakage inhibited while voltage climbs the ladder).
- Vapor-film discharge (CGDE onset, 2042V across 0.1mm film) — regime streamer, film Paschen 719V, 814 Td.
- Per-molecule (series micro-capacitor chain) — 3.70M molecules across 1.00mm → 551.36 µV/molecule (polarization (µV band)).
- Chokes — 2 × 0.0009H (520 turns, AWG 22, 62m wire, AC R 4.1Ω each).
- At resonance f_r = 84.48kHz — Xl = 955Ω, Xc = 955Ω, tank Q = 51.1, coil Q = 116.1.
- Cell voltage 2042V from 40V drive (×51.1). Tank current 2.14A circulating (CW upper bound — rate wire/switch for this); average input 64mA at 3% duty.
- No hard violations (band, wire length, dielectric). Average current is scored, not gated.
- Score 0.696.
Basis
- Confidence
- 0.70
- Method
- townsend-v5
- Recorded
- Published
- 30 Aug 2026
- Device
- Water Fuel Cell
- Component
- cell
- Source Ref
- design session v37
- Notebook Id
- 1610
design-loop Q resonance