calculation · Water Fuel Cell · computed
WFC design session v42: best candidate (Q=69.7, 97.7kHz)
Sweep: Hold adopted 10/1/55mm cell (0.1ppm/2C/x0.25) and attack peak_v alone — sweep drive down to land V_cell at 500-600V/~180Td CGDE window, matched ultra-low duty, checking Faradaic leakage stays quenched as the field drops.
Cell: 10mm rod in 12.0mm tube × 50mm, 1 cell(s) parallel → C_eff = 1.33nF, bulk water R = 140290Ω. Water/electrodes (Randles): 0.1ppm Na+ @ 2°C, surface ×0.25 → λ_D 227nm, C_dl 0.7µF, cell series R 10.7Ω, displacement current 99.1%, breakdown margin ×80. Fig-8 voltammetry (4,798,661): τ_EDL 101883.5µs (9955.1 carrier cycles to charge), Faradaic leakage at peak 17.9mA (leak score 0.87 — keep amp leakage inhibited while voltage climbs the ladder). Vapor-film discharge (CGDE onset, 837V across 0.1mm film): regime townsend-avalanche, film Paschen 719V, 334 Td. Per-molecule (series micro-capacitor chain): 3.70M molecules across 1.00mm → 225.96 µV/molecule (polarization (µV band)). Chokes: 2 × 0.001H (420 turns, AWG 22, 50m wire, AC R 3.4Ω each). At resonance f_r = 97.71kHz: Xl = 1228Ω, Xc = 1228Ω, tank Q = 69.7, coil Q = 179.0. Cell voltage 837V from 12V drive (×69.7). Tank current 0.68A 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 0.772.
Basis
- Confidence
- 0.70
- Method
- townsend-v5
- Recorded
- Published
- 30 Aug 2026
- Device
- Water Fuel Cell
- Component
- cell
- Source Ref
- design session v42
- Notebook Id
- 1622
design-loop Q resonance