H-TEC's Junior Basic, J101 is a Solar Hydrogen Experimentation System consisting of solar module, PEM Electrolyser, hydrogen and oxygen storage tanks, PEM fuel cell and fan (for electric load); mounted on a black base-plate, and textbook. The included H-TEC Education fuel cell textbook contains information about the technology and instructions for a variety of experiments.

The Junior Basic reflects the simple elegance of the hydrogen cycle by reflecting a self-contained hydrogen system that is perfect for introducing the technology behind the solar hydrogen cycle, or for small demonstrations.

Features:

✔ Compact system on one base-plate
✔ Clear, self-explanatory set-up
✔ Sturdy construction
✔ Short setup time

Recommended Grades: 5 - 12

Includes:

• Electrolyzer Cell 5
• x2 Storage 30
• Fuel Cell Hydrogen Oxygen
• Solar Panel Cell
• Fan Load
• Acrylic Base Plate
• Instructional Textbook

Experiments Possible with the Junior Basic, J101:

✔ Producing and storing hydrogen and oxygen
✔ Determining characteristic curve of solar panel
✔ Operating the fuel cell with hydrogen and oxygen 2:1
✔ Determining characteristic curve of electrolyser
✔ Determining electrolyser efficiency
✔ Learning about Faraday’s laws
✔ Determining characteristic curves of fuel cell
✔ Determining fuel cell efficiency
✔ Determining decomposition voltage of water
✔ Storing electrical energy from wind by using hydrogen technology
✔ Demonstrating a complete renewable hydrogen energy system

For the blue experiments listed above you will also need the Measurement Set (product code: 1071077).

For the green experiments listed above you will also need the Wind Generator (product code: 1071066).

H-TEC Education J101 Junior Basic Manual

	PEM Electrolyzer Cell 5 The PEM Electrolyzer separates water into hydrogen and oxygen. It is operated with distilled water and requires no caustic solutions or acids. • Permissible Voltage: up to 2VDC • Permissible Current : up to 1.5A • Hydrogen Production: up to 10mL/min • Oxygen Production : up to 5mL/min • Electrode Area: 2.9 cm² • Requires Commercial distilled (deionised) water with a conductivity of < 2 μS/cm/ • Dimensions (H x W x D): 2.0" x 2.0" x 1.6" (51 x 51 x 41 mm) • Weight: ~2oz (58 g)
	x2 Storage 30 The graduated hydrogen, oxygen, and water storage cylinders visualize the classic hydrogen separation experiment, as in the Hoffman apparatus. • Gas / Water Capacity Per Tank: 30 cm³
	PEM Fuel Cell H2/O2 The PEM Fuel Cell generates electrical energy from hydrogen and oxygen. It is based on PEM technology, which is the most widespread technology used in the development of fuel cell applications, e.g. for motor vehicles or stationary power supply systems. • Power in Hydrogen and Oxygen Mode: 900 mW • Power in Hydrogen and Air Mode: 300 mW • Electrode Area: 2.9 cm² • Generated Voltage: 0.45 - 0.96 V DC • Dimensions (H x W x D): 2.0" x 2.0" x 1.6" (51 x 51 x 41 mm) • Weight: ~2oz (58 g)
	Solar Panel Cells Provides electricity to run the model’s PEM Electrolyser • Cell Area: 90 cm² • Open Circuit Voltage: 2 V • Current: 350 mA • Power (MPP): 500 mW
	Fan Load • Power: 10 mW
	Instructional Textbook The textbook contains information about the technology and instructions for a variety of experiments.
	Entire Junior Basic • Dimensions (H x W x D): 3.9" x 11.8" x 5.9" (100 x 300 x 150 mm) • Weight: 1.3 pounds (600 g)

1) The fuel cell only produces low power.

Cause: The cell has been stored for a very long time or is too dry. A cell with a dry membrane will lose power.

Solution: Continue operating the cell. The cell will moisten itself during operation and gradually return to full power.

2) The electric load connected to the cell does not work, despite hydrogen being present.

Cause: Water has gotten into the fuel cell (e.g. via the storage tank). Drops of water in the fuel cell can block the gas feed and lead to a rapid loss of power.

Solution: Dry the cell by opening the connectors and blowing through the cell.

3) No hydrogen is produced by the electrolyser when the solar cell is connected.

Cause: The light intensity is insufficient.

Solution: Check the power specifi cations designed for 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.

4) The electrolyser does not work despite being set up correctly.

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