Principle

When a direct current flows through a Peltier element, a temperature difference is created: one side heats up, the other side cools down. The temperature of the warm side influences the temperature of the cold side and vice versa. If the warm side is kept at a constant temperature by a large storage tank, e.g. water, the cold side cools down more than without a storage tank. In this experiment temperatures are measured during operation of the thermogenerator without and with "water storage tank" on the warm side as a function of time.

Benefits

• Part of a system solution - easily expandable for further experiments
• Simple teaching by using the demo board physics
• Clear test execution by using ADM3 multimeters

Learning objectives

• Students learn how a thermocouple works.
• The students observe the influence of a "water reservoir" on the functioning of the thermocouple.