Design AC-AC voltage Controller for Supplying Heater on Drying System

Renny Rakhma Wati

Abstract


Abstract This paper discusses the process heater temperature settings that will be used as a heater in the chamber dryer system. Dryer system can be used for drying some materials that must be reduced the water content, for example coconut fruit that will be processed to be cooking oil, so it must first be dried to be copra. Heater temperature setting is done by adjusting the heater supply voltage, and this is the task of ac to ac voltage controller. Where ac to ac voltage controller is a circuit converter is capable converting ac voltage with value 220 Vrms at 50 Hz frequency and have waveform pure sinusoidal become ac voltage frequency at 50 Hz with an output voltage suitable with our need but the voltage waveform not impure sinusoidal or defective as a result firing angle effects. Now the output voltage which we set determines the value of the heater temperature. And the output voltage is regulated from firing angle on triac component. Based on the results of experiments that have been done, if the drying chamber which has volume 135.2 liters and the temperature regulated at 700 C then the heater with a power requirement of 400 W should receive supply 216 V and the triac of ac to ac voltage controller fired on 0.55 radians

Keywords


ac to ac voltage controller, firing angle, heater

References


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DOI: http://dx.doi.org/10.12928/telkomnika.v16i3.5194

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