Thermal Piling Power

CSEF · 2011 Alternative Energy (Junior Division Only)

Overview

Objectives/Goals The objective was to find out whether thermopiles could be made more effective through type change, temperature change, and number change. Methods/Materials Thermopiles (Thermocouples Type K and Type E), solder/soldering iron, oven, voltage meter. Results The test resulted in larger numbers of thermocouples reducing the voltage output. The E type produced more electricity than that of type K, but declined more as well. Type E produced almost 4 times more electricity than type K, but electricity drop was higher. The Type K thermopile had a fairly straight growth in electricity output, while the type E thermopile had a varying range in tests that involved higher temperatures. This means that probably Type E is not as well suited to hot environments as Type K. Conclusions/Discussion The project ended up differently than what was hypothesized. It was hypothesized that the electricity would grow with more thermocouples and temperature, because they would form a chain and pick up more heat. Both types of thermocouples showed signs of decline instead of increase.

Summary statement

More heat/numbers means less electricity proportionally for all types of thermocouples.

Help received

Father assisted in building thermopiles, Mother helped in building thermopiles. General Atomics allowed use of hot plate.

Competition history

  • CSEF 2011 Alternative Energy (Junior Division Only) · Entry J0234

Resources

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Source: California Science & Engineering Fair public projects

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