The degree thesis is to create a system of fresh longan and dried using the heat from an electric heating. To create guidelines for energy-saving and fast drying, longan, most efficient, which is the purpose of studying the difference between hot air drying with longan from electric heating with hot air from the ovens and the education quality of longan kaes after drying is complete, including micro-controller as a processor work. Dried longan, fresh system using the heat from an electric heating consists of 2 major sectors and regions are controlled by the programming Department, the input signals of the microcontroller reads the moisture and lawat moisture to the process to send a signal to the amplifier output takhao power to control the operation of other devices. The next sector is the high output per.With AC power 220V 50 hoenta solar station will be used as switches in the Prophet's Valley region are.The output stays plugged into the set, electric heating 220 v single-phase 50 hoenta and use the thermostat to measure the temperature in order to send a signal to the microcontroller as a feedback by this type of device, the two work together to control electric heating series. The effect of fresh longan drying experiments, it was found that.
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