- The thermoelectric cooler assembly was attached to the various sizes of the aluminum in turn using the heat sink paste.
- The current was then fixed at 1.0 A and passed through the thermoelectric cooler assembly.
- The temperature of the cold surface of the thermoelectric cooler assembly was then measured three minutes after the current had been switched on for all the sizes of the aluminum.
- The heat sink and thermoelectric cooler assembly were at room temperature before the current was switched on.