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Thermal Energy Transfer Demonstration (continued)
4. Turn off the power supply and allow the thermoelectric module to return to room
temperature. Reverse the positive and negative banana plug jumper wires at the
Voltage Input/Output plugs (connect the red wire from the power supply to the
black plug on the Thermal Generator, and vice versa).
5. Turn the power supply back on with the same settings. Now the current through
the thermoelectric module is going the other direction. After one minute, gently
touch the module again and observe the difference in temperature between the
module and the base.
Experiment 2 (advanced)—comparing rates of cooling for different supplied voltages
1. You will need a DC power supply or several batteries connected in series for this procedure. Identify the positive and negative
terminals on both the power supply and the Voltage Input/Output plugs and connect them with banana plug jumper wires.
2. Turn the switch to the "Peltier effect" position and turn on the power supply with a 2V configuration.
3. Using an Infrared digital thermometer, measure the temperature of the surface of the thermoelectric module every
10–15 seconds for 2 minutes. Record the temperatures and times in a data table.
4. Turn off the power supply and allow the thermoelectric module to return to room temperature.
5. Adjust the voltage to 4V and repeat Steps 3 and 4. Repeat again for 6V and 8V.
6. Graph your different data sets using a spreadsheet program or graph paper. Be sure to determine which is the independent
and dependent variables.
References
1. Awati, R. (2021, 18 octubre). Seebeck effect. TechTarget.
https://www.techtarget.com/ searchnetworking/definition/Seebeck-effect#
2. Patterson, G., & Sobral, M. (2005). EFECTO PELTIER. Facultad de Ciencias Exactas y Naturales, UBA, 1.
https://materias.df.uba.ar/labo4aa2014c1/files/2012/07/Efecto-Peltier.pdf
3. Salman, A. (2017). The Seebeck and Peltier effects. En Department of Physics. Ole Miss: University of Mississippi.
https://www.phy.olemiss.edu/~cremaldi/PHYS417/Seebeck%20and %20Peltier%20Effects.pdf
4. TEC1-12703 STONECOLD. (s. f.). TEM Electronic Components.
https://www.tme.com/mx/es/ details/pm-40x40-38/modulos-de-peltier/stonecold/tec1-12703/
5. The Seebeck Effect and thermoelectric coolers. (2022, 22 abril). Phononic.
https://phononic.com/resources/the-seebeck-effect-and-thermoelectric-coolers/
