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GMS HU15: Advanced Humidification System for Fuel Cells and Electrolyzers

The GMS HU15 is a high-precision humidification system designed to accurately reproduce the operating conditions of fuel cells and electrolyzers.

It provides independent control of humidity, temperature, and flow rates on both air and hydrogen lines, enabling realistic operating conditions to be replicated. This precise control improves test repeatability and helps researchers better understand the electrochemical phenomena that influence system performance and durability.

Building on several generations of humidification systems developed by Gemesis, the GMS HU15 is capable of rapidly following setpoint changes to reproduce dynamic operating cycles, including WLTP driving profiles.

Operating as a standalone unit and controllable via a CAN bus, it can be integrated into a complete test bench or used independently for R&D, validation, and qualification activities.

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Applications

Designed for the most demanding hydrogen applications, the GMS HU15 is particularly well suited for:

Fuel Cells

  • Stack and single-cell validation
  • Performance testing
  • Durability studies
  • WLTP cycle reproduction

Electrolyzers

  • Cell qualification
  • Stack validation
  • Efficiency studies
  • Operating condition optimization

Hydrogen Development

  • R&D test benches
  • Development of new processes
  • Component validation
  • Electrochemical characterization

Scientific Research

  • Transport phenomena studies
  • Electrochemical mechanism analysis
  • Environmental condition control

Industrial Test Benches

  • Integration into test platforms
  • Automated test campaigns
  • Complete system qualification

Technical Specifications

Air LineHydrogen Line
Flow rate
3 to 1,200 Nl/min
Flow rate
2 to 320 Nl/min
Humidity
0 to 100% RH
Humidity
0 to 100% RH
Temperature
20 to 90°C ±1°C
Temperature
20 to 90°C ±1°C
Dew point
10 to 90°C ±2°C
Dew point
10 to 90°C ±2°C

                                                                                                                                                                           Download the Datasheet

Why choose Gemesis?

For several years, Gemesis has been designing test benches, fluid handling systems, and control and automation solutions for the hydrogen, battery, mechatronics, and energy technology sectors.

The GMS HU15 is the result of this expertise. Developed to meet the demanding requirements of electrochemical testing, it provides a robust, scalable, and fully customizable solution tailored to the needs of industrial companies and research centers.