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A project log for Desktop Cooler

The Desktop Cooler will inefficiently keep you (or your beverage) cool in the summer months.

parkolayparkolay 05/29/2016 at 02:262 Comments

I removed the multi-directional clamping apparatus and filled the cold chamber with solid and liquid HOH. I connected the 10A input of a DMM to the "Black" wire of the Peltier device and connected the "Red" wire of the device to the positive terminal of a 9 volt battery (not the best power source but the most convienient at the time).

The Peltier device moved 2.5 amps of current while the battery had it available to supply. I will need to review the Peltier device current requirements and limitations (and consequences of exceeding those limits).

The heat-sink temp dropped substantially (I took some thermal images but none before filling the chamber) when the Peltier device was "engaged."

The battery temp doubled while the Peltier device was connected.

I did not monitor the voltage of the battery (I was more concerned with the supply current).

I did not monitor the temperature (more than take a few thermal images) of the "fluid" in the chamber or the heat-sink during operation of the device.

I will need to connect a real bench top supply and retest with some more instrumentation at a later time.

I will also have to load the silly fluke software to upload the thermal images that I captured.

Discussions

parkolay wrote 05/30/2016 at 02:07 point

From the website (http://www.electrodragon.com/product/tec1-12706-thermoelectric-peltier-cooler-12v-60w/);

"The side with words are the cooling side, and other side is the warm side."

Takes the guess work out of mounting (when you read all of the information given).

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parkolay wrote 05/29/2016 at 02:36 point

I was fairly pleased with myself that connecting the "Red" and "Black" wires of the Peltier device cooled the heat-sink. I suppose I had a 50% chance of getting the correct orientation when I used the adhesive to mount the device and the heat-sink together.

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