Part 3/7:
The heating process was methodologically designed, with the apparatus initially supplied with 750 watts of power, which was then reduced to 350 watts once the internal temperature reached 1200°C. This power fluctuation was a crucial aspect of maintaining temperature stability and was closely monitored. A notable observation was that when power was decreased, the furnace maintained its temperature, indicating a possible internal process that continued to generate heat.
Questions regarding the power input during experimental runs suggested that the apparatus operated on alternating current (AC) and involved the use of a homemade thyristor for power regulation. Discussion also pointed out that the temperature readings were primarily taken from a thermocouple positioned inside the heating coil.