The generation of hydrogen using energy from renewable sources is considered a key process for a sustainable economy. The ET 280 trainer can be operated in conjunction with the ET 255 energy system for solar and wind power and its components.
The ET 280 device contains an electrolyser that uses anion exchange membrane technology (AEM) to break down water (H2O) into hydrogen (H2) and oxygen (O2). The core component is a stack consisting of several cells connected in series in a bipolar design. The anodic half-cell is filled with diluted KOH (alkaline) electrolyte solution; the cathodic half-cell does not contain any liquid. An anion exchange membrane is located between the half-cells. The water from the electrolyte solution penetrates the membrane. Hydrogen is produced at the cathode. The hydrogen generated is safely flared off in a well-protected burner. Oxygen is produced on the anodic side and removed from the stack. The energy management system supplied is used to monitor and control the electrolyser.
In order to ensure the required water quality, the trainer includes a reverse osmosis system for raw water purification. This means that standard laboratory tap water can be used to operate the electrolyser.
A combination with ET 255 and its components enables investigations into the overall efficiency of the system and serves as a foundation for the design of needs-based grid coverage.
Measured values for hydrogen flow rate and pressure, as well as current and voltage at the electrolyser, are monitored and transmitted to the GUNT software. The GUNT software is network-compatible and enables experiments to be monitored, recorded and analysed at any number of workstations via the customer’s own network.
The GUNT Media Center provides extensive didactic multimedia teaching materials.
