calculation · Water Fuel Cell · computed
WFC design session v44: best candidate (Q=89.2, 98.4kHz)
Sweep: Lower Q via larger rod OD + wider annular gap while trimming peak_v/duty together to push V_cell down from 837V/334Td into the 80-250 Td CGDE window, holding Faradaic leakage quenched with cold, ultra-pure, polished water.
Cell: 10mm rod in 12.0mm tube × 50mm, 1 cell(s) parallel → C_eff = 1.31nF, bulk water R = 126261Ω. Water/electrodes (Randles): 0.1ppm Na+ @ 5°C, surface ×0.25 → λ_D 228nm, C_dl 0.7µF, cell series R 12.1Ω, displacement current 99.0%, breakdown margin ×62. Fig-8 voltammetry (4,798,661): τ_EDL 89958.6µs (8850.3 carrier cycles to charge), Faradaic leakage at peak 22.9mA (leak score 0.82 — keep amp leakage inhibited while voltage climbs the ladder). Vapor-film discharge (CGDE onset, 1071V across 0.1mm film): regime townsend-avalanche, film Paschen 719V, 427 Td. Per-molecule (series micro-capacitor chain): 3.70M molecules across 1.00mm → 289.06 µV/molecule (polarization (µV band)). Chokes: 2 × 0.001H (200 turns, AWG 18, 24m wire, AC R 0.9Ω each). At resonance f_r = 98.38kHz: Xl = 1236Ω, Xc = 1236Ω, tank Q = 89.2, coil Q = 706.2. Cell voltage 1071V from 12V drive (×89.2). Tank current 0.87A circulating (CW upper bound — rate wire/switch for this); average input 17mA at 2% duty. No hard violations (band, wire length, dielectric). Average current is scored, not gated. Score 0.805.
Basis
- Confidence
- 0.70
- Method
- townsend-v5
- Recorded
- Published
- 30 Aug 2026
- Device
- Water Fuel Cell
- Component
- cell
- Source Ref
- design session v44
- Notebook Id
- 1634
design-loop Q resonance