SOFC Stack · Digital Twin
AMPS · WP5 T5.4 — Live demonstrator
Degradation risk — reduce load
single-cell · 20 nodes Sim time 0.0 s — Hz Settling… ⚠ Engine warning
Fuel
Live VUTS V9 digital twin — a 1D channel-level finite-volume model of a single anode-supported SOFC, replaying a recorded solver run in your browser. Drag the slider to apply load, switch fuel to see mixture sensitivity, watch the temperature profile and loss decomposition respond in real time.
case: —
Try
Power demand → 0 W
Cell health SAFE
nominal

Key metrics

The slider sets a power demand. The solver finds the operating point (V, I) that delivers it. As you push harder the cell trades voltage for current — V drops, η losses climb, FU rises. After any change the metrics drift for ~10–60 s while species transport and the thermal field re-equilibrate — that's the digital twin's dynamics, not noise. Watch the Settling badge in the topbar.
Anode-supported cell · 400 cm² · 20 nodes
Fuel: 97% H₂ / 3% H₂O · 800 °C
Cell power delivered target 0 WI-cap 320 A
0W
Fuel utilisation
0%
Cell voltage
0.000V
Cell current
0A
Voltage losses E = 0.00 V
Vcell ηact ηohm ηconc
Peak power (in safe envelope) 0 W

I-V characteristic analytic baseline + live operating point

The dashed line is a canonical Tafel + ohmic + concentration backdrop. The solid trail and dot are the live solver — deviation from the baseline reveals where the cell's actual polarisation departs from the textbook curve.

Temperature profile inlet → outlet · 20 axial nodes

Solved from the channel energy balance. At OCV the profile is monotonic (fuel preheating). Under load an interior hump forms where local current density peaks — widening ΔT raises thermo-mechanical stress on the cell and interconnect.
Inlet — Outlet
bar height & color = T relative to min/max · monotonic = preheating only

Timeline last ~1200 sim-seconds (~20 min of cell history) Vcell [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. Tmax > 900 °C overshoots the operational envelope. The composite Cell Health bar penalises all three.