Design of Flash Dryer Cum-UV for Improving the Quality of Drying Cassava Chip (original) (raw)

IOP Conference Series: Earth and Environmental Science, 2022

Abstract

Drying is a scientific operation, which includes the transient transfer of heat and mass at some rate of process. The purpose of this study was to design and create a flash system dryer, which is equipped with UV. The selection of flash system dryers is based on conditions where some materials to be dried are sensitive to hot air contact due to prolonged drying. As a heat source, this dryer uses a heater to heat the air. In order to spread the heat evenly in the dryer room, the blower is installed on the heater. The intake of air blower is 60 m/s, while the air temperature on the air heater is conditioned at 50 and 60ºC. In order to collect data of air temperature, a thermocouple is placed on heat channel pipe and dryer room. The performance test of the dryer by using cassava chips, showed that the lowest cassava chip water content was 7,2% at 50ºC treatment temperature, and the highest water content by 18.5% at treatment temperature of 60ºC.

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