AMPS · SOFC Stack Digital Twin — Live Demonstrator

SOFC Stack · Digital Twin

AMPS · WP5 T5.4 — Live demonstrator

Degradation risk — reduce load

Live Drive the fuel cell. Demand more power and watch it trade voltage for current in real time.

0 W demand 0 W 250 W

Anode-supported cell · 400 cm² · 20 nodes · Fuel: 97% H₂ / 3% H₂O · 800 °C case: —

Power delivered

0W

target 0 WI-cap 320 A

Cell voltage

0.000V

at 0 A

Fuel utilisation

0%

share of fuel consumed

Cell health SAFE

nominal

I–V characteristic where the cell sits on its curve

Dashed = textbook Tafel + ohmic + concentration backdrop · dot & trail = live solver.

Temperature profile inlet → outlet · 20 nodes

Inlet — Outlet

bar height & colour = T vs min/max · hump grows under load

Voltage losses where the volts go

Nernst E → terminal V_cell E = 0.00 V

V_cell η_act η_ohm η_conc

Peak power (safe envelope) 0 W

Push past peak and the cell delivers less power for more current — the envelope edge.

Timeline last ~1200 sim-seconds · what just happened V_cell [V] FU [%]

About this demonstrator

What's running

VUTS V9 SOFC digital twin — a 1D channel-level finite-volume model of an anode-supported solid-oxide cell. Each frame you see is one real solver step from the V9 1D FVM model, recorded across a load sweep and replayed offline here. Twenty axial nodes, implicit time integration with a Picard outer loop coupling species / electrochem / energy, Butler–Volmer electrochemistry, partial-pressure concentration losses (case-dependent porous-diffusion model), mass / species / energy balance checked every step.

What you can do

Drag the current-density slider to apply load, switch between Pure H₂ and Syngas to compare fuel composition effects, or use the Try chips above to jump to canonical states. The temperature profile, voltage losses and stack health are not pre-recorded — they update from the live solver.

Why it matters for AMPS

WP5 T5.4 builds the digital twin layer that AMPS partners use to explore stack-design trade-offs without firing every prototype. Channel-level physics keeps the predictions grounded; per-cell warp, contact resistance and degradation models extend the same core to the stack scale (separate deliverables in the AMPS WP5 chain).

Reading the numbers

FU = fuel utilisation; above 85 % the cell starves and degradation accelerates. ΔT = axial temperature spread; wide ΔT stresses the interconnect joint. T_max > 900 °C overshoots the operational envelope. The composite Cell Health bar penalises all three.