Thermoelectric Effect

Overview

Objectives/Goals The objective of my project is to determine how does a change in temperature affect the voltage being generated due to the Thermoelectric Effect. The Thermoelectric Effect is a phenomenon that generates voltage due to a temperature difference between two connected metals. I believe that more of a temperature difference generates more voltage. Methods/Materials The final experiment was conducted using a Seebeck device connected to a multi-meter. A lamp, ice cubes, and room temperature in 6 different combinations were used to create a temperature difference on both sides of the device. An infrared thermometer was used to record the temperature on both sides of the device and generated output voltage was recorded using multi-meter. Before using a Seebeck device, conventional metals like copper and aluminum were used to attempt to replace the device but the experiment did not produce measureable voltage. Results The results matched my hypothesis where more voltage was consistently being generated when the temperature difference was higher. Conclusions/Discussion My conclusion is that because more of a temperature difference generates more voltage this phenomenon can be used to convert excess heat/cold into usable electricity. More research is required in this area to see how much wattage we can get.

Competition history

• CSEF 2010 Physics & Astronomy · Entry J1903

Resources

• CSEF project summary ↗

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