AEM Water Electrolyser Stack Test Station (30–50 kW) — SE30K-AE / SE50K-AE

Overview

The ScienceGears SE30K-AE and SE50K-AE Stack Test Stations are floor-standing, fully integrated AEM water electrolyser (AEMWE) test platforms engineered for controlled stack evaluation up to 30–50 kW. Each system combines DC power delivery, electrolyte and gas management, safety interlocks, and automated monitoring software in one housing (1400 (W) × 2200 (D) × 2000 (H) mm).

Principle of operation (AEMWE)

In an AEMWE, water is commonly supplied to the cathode where it is reduced to hydrogen and hydroxide ions (OH⁻). Hydroxide migrates through the anion exchange membrane to the anode, where it is oxidised to oxygen. The test station controls and records electrical load and balance-of-plant variables so researchers can generate polarisation curves, efficiency maps, and durability datasets under repeatable conditions.

Key capabilities and specifications

• High-power DC stack operation for dynamic protocols (start-up/shut-down, load steps, long-duration holds).
• Gas flow measurement (typical ranges):

• • SE30K-AE: up to ~150 slpm H₂ and ~75 slpm O₂

  • SE50K-AE: up to ~250 slpm H₂ and ~125 slpm O₂

• Mass-flow control and purge safety, including automated N₂ purge for inerting.
• Electrolyte circulation with liquid–gas separation, flow control, level alarms, and temperature control (ambient to ~95 °C); optional automatic refill.
• Gas cooling + condensate trapping to stabilise measurements and protect downstream sensors.
• Cross-over monitoring via H₂-in-O₂ / O₂-in-H₂ concentration sensing (low-% detection ranges).
• Automated back-pressure control up to 10 bar (higher-pressure options available) and nominated-channel cell voltage monitoring (±5 V per channel).
• Optional impedance diagnostics (10 mHz–10 kHz) for HFR and degradation insight.
  
  

Typical applications and integration

Ideal for stack-scale catalyst/membrane validation, balance-of-plant optimisation, start–stop stress testing, and scale-up verification for green-hydrogen R&D. ScienceGears supports configuration, commissioning, and training across Australia and New Zealand, and can advise on complementary tools such as gas analysis and electrochemical characterisation workflows.