Renewable Energy

Absorption of thermal radiation with a solar collector

Principle

Clamp-on holder 02164-00 is fixed to the aluminium frame of the demonstration board as a holder for a reflector lamp. The absorber plates of solar collector 02165-00 can be used to study how the colour of the absorber affects its function, for example. Magnetic ...

Utilisation of radiant energy with a solar collector

Water warms up as it flows through the fully assembled solar collector. The temperature increase is a function of the flow rate of the water.

Utilisation of radiant energy with a solar cell

Properties of solar cells - dependence on the illuminance

The current-voltage characteristic of a solar cell

Series and parallel connection of solar cells - open-circuit voltage and short-circuit current

Principle

Series or parallel connection of solar cells can be used to change voltage and current and to adjust them to the consumer's needs. The short-circuit current of solar cells is proportional to the irradiance, while their voltage output is nearly independent of it. ...

Series and parallel connection of solar cells - current-vol-tage characteristics and power ET 5.7

PEM electrolyser and PEM fuel cell

The PEM solar hydrogen model

Principle

Electrical energy from solar cells supplies an electrolyser. The gases generated by the PEM electrolyser - hydrogen and oxygen - are sent directly to the PEM fuel cell. The electrical energy generated is used to drive a small motor. The solar cells can be ...

Heating of water via the absorption of thermal radiation

Producing hydrogen and oxygen from water with a PEM electro-lyser

Electrical energy from hydrogen with a PEM fuel cell

The PEM solar hydrogen model

Generation of electricity with the Pelton wheel

Principle

Model of a hydroelectric power station

The Pelton wheel is connected to a water hose and driven by a jet of water. The wheel is connected to a generator by a drive belt and an incandescent lamp is connected to the generator.

In the experiment, ...