Fandri Christanto, Rasional Sitepu, Andrew Joewono
Chips are a snack that much-loved by the community. In the process of making chips require drying process. Drying is essentially an attempt to reduce the water content of the dried object. The method that can be used to remove the water content is the evaporation process. This method can take place when the drained object is subjected to a flowing heat. The evaporation method still used today is the conventional way of using sunlight. However, if there is no sunlight or even the rainy season arrives will affect the quality of the chips themselves. In this designed tool, a LPG gas dryer will be developed. This system consists of a DHT22 sensor, as an input to read the temperature and humidity values. Arduino microcontroller as main processor that will process input data from temperature and humidity sensor (DHT22). Output is a blower that is used to push hot air into space and when stepper motors open / close the flow of gas flow that causes fire. To make it easier for users to operate it, this tool has a start / stop button that is used to turn the tool on or off. The LCD display is used as an indicator to display the temperature and humidity values during the tool. The tool will stop automatically when the chip is dry. Test results from this thesis, indicating that the tool can die automatically when the dryer room has a humidity value of 15%. Once tested in its entirety, the dryer is able to dry the chips for 70 minutes. LPG fuel is able to do the drying process up to 3 times. Power consumption of 10W at standby and 71.5W when operating. © 2006-2017 Asian Research Publishing Network (ARPN).
Department of Electrical Engineering, Widya Mandala Catholic University, Surabaya, Kalijudan, Surabaya, Indonesia