Multi-purpose cell set for demonstrating hydrogen technology
Demonstration system for hydrogen technology. The electrochemical cell combines all known functions of PEM cells (PEM = Proton-Exchange-Membrane): Electrolysis and fuel cell, hydrogen and oxygen pump, direct methanol fuel cell and a cell for producing hydrogen from methanol. Consists of multifunctional electrochemical cell and horizontal gas accumulators on transparent base plate (for operation on overhead projectors), fan and solar cell module. Dimensions: 90 mm x 290 mm x 200 mm Weight: 0,93 kg Fan To be used as electrical load for fuel cells. Power consumption: 10 mW Solar cell module To be used as power source for electrolysers. Power output: max. 750 mW The sum of all possibilities PEM electrolyser With a few drops of distilled water, the electrochemical cell functions as an electrolyser when an external voltage (e.g. solar cell module or power supply) has been applied. Water is broken down into hydrogen and oxygen. Electrical energy is converted into chemical energy. The ratio 2:1 of the gases can be seen clearly. Power: 2.0 W Hydrogen production: 8,6 cm³ / min Oxygen production: 4.3 cm³ / min PEM fuel cell The gases hydrogen and oxygen, generated in PEM electrolyser operating mode, can be used for the "PEM fuel cell" mode directly and without modifying the device – only the voltage supply needs to be replaced with an electrical load (e.g. fan). Chemical energy is reconverted into electrical energy. By removing the screw fittings on the oxygen side, the cell can be rapidly adapted for operation with hydrogen and ambient air. Power with oxygen: 600 mW Power with air: 270 mW Hydrogen and oxygen pump The electrochemical transport of hydrogen or oxygen from one side of the cell to the other is possible with the system: the gas is pumped through the cell. Gas compression is also possible. Flow rate hydrogen: 35 cm³/min Flow rate oxygen: 4 cm³/min Methanol fuel cell For using the cell as a methanol fuel cell. The special catalyst in the electrochemical cell is capable of using hydrogen or a 3% methanol-water mixture as fuel. Power: 20 mW Hydrogen production from methanol By applying an external voltage, hydrogen and carbon dioxide can be generated from a 3% methanol-water mixture. Hydrogen production: 3.0 cm³ / min Carbon dioxide production: 1.0 cm³ / min