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Stem Education ‘Horizon’ | RENEWABLE ENERGY SCIENCE junior kit
$ 529.00 excl. GST
This Stem Education “Renewable Energy Science Junior Kit” demonstrates the workings of a clean energy technology system on a miniature scale. Power an electrical circuit by solar panel or a wind turbine with profiled blades based on NASA aeronautics.
Generate hydrogen through water electrolysis and convert it into electricity using a PEM fuel cell. Whichever combination of technologies you want to explore, this science kit is a comprehensive introduction to the principles behind renewable micro-grids.
Small-scale wind turbine, solar cell, fuel cell, electrolyzer and more. Enough hardware, software and curriculum content for group work – up to 4 or 5 students.
Includes Full STEM Activity Materials for:
Reversible electrolysis reactions, Reaction rates, Increasing energy efficiency and car performance, Renewable energy, Conservation of energy and energy transfer,
Measuring the effects of solar cell angle on electrical output, Measuring the effects of shading on electrical output, Changing number of blades, Changing angle of blades, Using different-shaped blades, Rotational dynamics.
Kit Contents:
Wind turbine body / Rotor head for profiled blades / Profiled blades for turbine / Rotor head adapter for sheet blades / Polypropylene sheet blades for turbine /
Rotor unlocking tool / Turbine Support base / Aluminum wind turbine post / PEM Electrolyzer / PEM Electrolyzer base / PEM Fuel cell / PEM Fuel cell base /
Hydrogen tank / Oxygen tank / Inner Gas containers / Circuit board module base / 100-Ohms Variable Resistor module / 1-watt Solar panel /
Adaptors, tubing clincher & purging valve / Assembly instructions / CD with curriculum manuals / Water/gas tank module base / Flexible 2 mm banana connecting leads /
Transparent silicon tubing / Plastic plug pins for electrolyzer / Battery pack with leads / Syringe / Motor and fan module base / Propeller blade / Small car wheel / LED module base
Hydrogen Experiments:
Electrolysis mode generating hydrogen & oxygen from water / Fuel Cell mode generating electricity from hydrogen & oxygen / Determine minimum voltage for water decomposition / Polarized states for hydrogen fuel cells.
Solar Energy Experiments:
The Effect of Heat on Solar Panels / The Effect of Shade on Solar Panels / The Effect of Tilt Angle on Solar Panels / Finding the Solar Panel’s Maximum Power Point.
Wind Energy Experiments:
How many blades are best – 1, 2, 3 … more? / Using 3 different curved blade shapes & self-made blades / Turbine efficiencies / Measuring RPM / Tuning for maximum power / How blade angle or pitch affects output power / Generate hydrogen.
[View PDF specifications datasheet: HNFCJJ-37-datasheet ]
Out of stock. (can be backordered).
Stem Education 'Horizon' | RENEWABLE ENERGY SCIENCE junior kit
This Stem Education "Renewable Energy Science Junior Kit" demonstrates the workings of a clean energy technology system on a miniature scale.
[View PDF specifications datasheet: HNFCJJ-37-datasheet ]
[info] Why Fuel Cells and Hydrogen?
Fuel cells can be thought of as alternative energy devices. They convert chemical energy into electrical energy. Hydrogen fuel cells do this very cleanly, with no toxic emissions, and with a better efficiency.
Fuel cells do not generate energy out of thin air. They use hydrogen. Hydrogen is an outstanding carrier of energy. Hydrogen is non-toxic, renewable, easily obtained, and packed with energy.
When it combusts with oxygen, it turns into water.
This water can again be split into hydrogen and oxygen via electrolysis.
The generated hydrogen can be combusted once again, thus undergoing a limitless cycle without toxic emissions.
With a fuel cell, you can convert hydrogen into electric current without combustion.
Fossil fuels are converted into usable energy through combustion.
The energy released during combustion is inherently difficult to capture and inefficient.
It also produces carbon dioxide, which cannot easily be converted back into a usable fuel.
A fossil fuel combustion engine at a power plant is only about 30 to 40% efficient.
This means it coverts only 30 to 40% of the energy in the fossil fuels to usable energy (electricity).
Engines in a car are even less efficient, and reach the level of 15 to 20% of efficiency.
Where does the rest of the energy go? It escapes as heat, vibration, and noise.
STEM is an acronym for Science-Technology-Engineering-Math.