calculation · Water Fuel Cell · computed
WFC design session v25: best candidate (Q=70.9, 72.9kHz)
Sweep: Walk f_r down from ~98kHz toward 60kHz around adopted #1 cell by raising C_eff via colder water (higher εr) and longer/multi-cell electrodes, while testing whether the resulting higher Q lifts yield without breaching 250 Td or 1A — holding Td near 186.
Cell: 6mm rod in 10.0mm tube × 150mm, 1 cell(s) parallel → C_eff = 1.40nF, bulk water R = 117919Ω. Water/electrodes (Randles): 0.1ppm Na+ @ 5°C, surface ×1 → λ_D 228nm, C_dl 5.9µF, cell series R 20.6Ω, displacement current 98.7%, breakdown margin ×156. Vapor-film discharge (CGDE onset, 850V across 0.1mm film): regime townsend-avalanche, film Paschen 719V, 339 Td. Chokes: 2 × 0.0017H (180 turns, AWG 18, 21m wire, AC R 0.7Ω each). At resonance f_r = 72.92kHz: Xl = 1558Ω, Xc = 1558Ω, tank Q = 70.9, coil Q = 1112.2. Cell voltage 850V from 12V drive (×70.9), series current 545.9mA. All constraints satisfied (current <1A, band, wire length). Score 0.718.
Basis
- Confidence
- 0.70
- Method
- townsend-v5
- Recorded
- Published
- 30 Aug 2026
- Device
- Water Fuel Cell
- Component
- cell
- Source Ref
- design session v25
- Notebook Id
- 1406
design-loop Q resonance