Week 9

This week we worked to figure out how we could get the peltier thermoelectric cooler could work properly, as in that the hot side of the peltier would not transfer the heat back to the cold side. This week we needed to determine an amount of voltage that will make the peltier work better and more efficiently. We also worked to collect data about temperature difference between the two sides of the peltier and whether or not a heat sink helped to maintain the significant hot and cold temperature difference between both sides.

The following image shows the device we used in order to adjust and apply a voltage (volts) and also electric current (amps) to the peltier. However, the displayed voltage and current are not the established voltage needed for the peltier to work at its best.

Image 1

Image 1 shows the peltier wires, red and black, attached to the device to apply a voltage and current of our choice.

The next image shows the heat sink we purchased and used on the peltier to help the hot side of the peltier release its heat better instead of transferring it back to the cold side.

Image 2

Image 2 is a small heat sink, about the same size as the peltier, that was placed underneath the hot side of the peltier.

The third image is of the set up we established in order to run tests and collect data on the temperature difference between the two sides of the peltier.

Image 3

Image 3 shows the relative set up used for testing. heat sink was placed underneath peltier's hot side. One of each temperature probes were placed on one side of the peltier. The peltier is hooked up to the device. THe temperature probes are hooked up to a laptop that contains a software program that collects temperature readings over time and graphs the data.