Heat

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

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

Electric energy generation with a thermogenerator

Principle

The thermogenerator consists of a block with multiple thermostats. These are connected electrically in series and thermally in parallel, so that their thermoelectric voltages add up.

Water baths can be used to bring the two sides of the thermogenerator to di ...

Heat insulation / heat conduction

Principle

A model house with replaceable side walls is used for determining the heat transition coefficients (k values) of various walls and windows and for establishing the heat conductivities of different materials. For this purpose the temperatures on the inside and outsid ...