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