Product Details
Thermogenerator with motor
Consists of a Peltier element constructed of 127 series-connected rods of a semiconductor material mounted on a heatsink. The Peltier element can be connected via a switch to two safety sockets ( Peltier effect position ) or to a small motor with propeller ( Seebeck effect position ).
Description
The Peltier effect : The bushings are connected to a power supply (max. 8 V and 3 A). When current flows in the element, a temperature difference occurs between the two sides of the element. The sign depends on the direction of the current. (The switch must be in the Peltier effect position .) NB: If the black bushing is connected to plus, the free side of the Peltier element is heated. This should only be done for a short time! The element is destroyed if it gets too hot.
The Seebeck effect : Conversely, if there is a temperature difference between the two sides of the element, a voltage difference occurs. You can directly demonstrate this by keeping an eye on the engine with the switch in the Seebeck effect position . If you want to connect an external load and possibly measuring instruments, the switch must be in the Peltier effect position – but it is still the Seebeck effect that is being investigated.
The free side of the Peltier element can be easily heated or cooled using a container with hot or cold water, which creates an electrical voltage difference.
