The Double Electrolyzer Kit (Formerly Electrolyzer 10) is a Double-Cell PEM Electrolyzer with water tanks, hydrogen and oxygen storage tanks. The Double Electrolyzer Kit produces and stores hydrogen and oxygen simply by adding de-ionized water and an electric load.

The electrolyzer provided in this set is maintenance-free. However, always remember to use fresh, distilled water each time and to drain the water from the storage tanks after use.

Technical Specifications:

• Hydrogen Production Rate: 20 cm³/min @ 1.5A
• Oxygen Production Rate: 10 cm³/min @ 1.5A
• Maximum Permissible Voltage: 4VDC
• Power Needed: 6 W
• Hydrogen Gas Storage: 80cm³
• Oxygen Gas Storage: 80cm³
• Dimensions (H x W x D): 3.5" x 6.7" x 5.3" (90 x 170 x 135 mm)
• Weight: 10.2 oz (290 g)

About PEM Electrolyzers

The growing significance of PEM electrolyzers mirrors the development of fuel cells. Electrolyzers generate the hydrogen required by fuel cells from water in an environmentally conscious manner. The electrical energy required for this purpose can be gained from renewable sources such as solar cells, wind farms or hydroelectric plants.

Water reacts in the electrolyzer under the influence of electrical energy according to the following formula: 2H₂O = 2H₂ + O₂. This process takes place in the MEA (membrane electrode assembly). The MEA consists of the cathode, the anode, and a special polymer membrane (PEM) which is permeable to protons but which presents a barrier to electrons. Your h-tec electrolyzer functions on the PEM principle. The gases produced can be collected in storage tanks (H-TEC Storage 30 or Horizon 30mL Cylinders). The energy stored in chemical form in the gases can be converted back to electrical energy in a fuel cell as and when required.

H-TEC Education E205 Double Electrolyzer Kit Manual

The electrolyser does not produce hydrogen when the solar cell is connected.

Cause 1: The light intensity is insufficient.

Solution 1: Check the power specifications of the light source. You need sufficient sunlight or halogen lamps with focused light such as the Sun Simulator Light. Energy-saving lamps, fluorescent tubes, etc. are not suitable for the operation of solar modules.

Cause 2: You are using a double-cell electrolyser (electrolyser 10 or electrolyser cell 10) and are running it with a solar module for single cells.

Solution 2: Use the appropriate solar module - the Tutorial Double Solar Module.

The electrolyser does not work despite being set up correctly.

You have not used distilled water. The cell is permanently damaged.