calculation · Water Fuel Cell · computed
WFC design session v40: best candidate (Q=56.5, 94.5kHz)
Sweep: Finer grid at the 10-12mm×60mm best but use surface_factor as the fresh lever to raise C_dl and hold displacement current while low peak_v + cold pure water crush leakage — landing the film at 150-200 Td without touching gap/length/cell-count again.
Cell: 10mm rod in 12.0mm tube × 60mm, 1 cell(s) parallel → C_eff = 1.58nF, bulk water R = 108846Ω. Water/electrodes (Randles): 0.1ppm Na+ @ 4°C, surface ×0.25 → λ_D 228nm, C_dl 0.9µF, cell series R 10.5Ω, displacement current 99.0%, breakdown margin ×91. Fig-8 voltammetry (4,798,661): τ_EDL 93655.0µs (8845.9 carrier cycles to charge), Faradaic leakage at peak 18.9mA (leak score 0.86 — keep amp leakage inhibited while voltage climbs the ladder). Vapor-film discharge (CGDE onset, 734V across 0.1mm film): regime townsend-avalanche, film Paschen 719V, 293 Td. Per-molecule (series micro-capacitor chain): 3.70M molecules across 1.00mm → 198.26 µV/molecule (polarization (µV band)). Chokes: 2 × 0.0009H (520 turns, AWG 22, 62m wire, AC R 4.2Ω each). At resonance f_r = 94.45kHz: Xl = 1068Ω, Xc = 1068Ω, tank Q = 56.5, coil Q = 126.8. Cell voltage 734V from 13V drive (×56.5). Tank current 0.69A circulating (CW upper bound — rate wire/switch for this); average input 14mA at 2% duty. No hard violations (band, wire length, dielectric). Average current is scored, not gated. Score 0.744.
Basis
- Confidence
- 0.70
- Method
- townsend-v5
- Recorded
- Published
- 30 Aug 2026
- Device
- Water Fuel Cell
- Component
- cell
- Source Ref
- design session v40
- Notebook Id
- 1616
design-loop Q resonance