In order to design and develop DTA equipment, it is necessary to consider the
selection of the appropriate heating elements. The coils resistor of 9, 16, and
23 ohm were used as heating elements to control the temperature in tube
furnaces. The efficiency of tube furnaces were analyzed by operating them
with electrical voltage of 22, 27, 31, 37, 47, 80 and 100 volt.
The first tube furnace with heating element of 9 ohm could not be heated up to
1000°C due to low electric power. The second tube furnace with heating
element of 16 ohm reached 1000°C when it… Selengkapnya