Development and Design of Dryer Using Biomass Energy and Combined with Electric Coil Dryer for Drying
Keywords:
Biomass Energy, Electric Coil Dryer, DryingAbstract
This research involves the design and development of a biomass energy-powered dryer with an electric heater. The biomass stove serves as a heat source, providing heat to the air in the drying chamber through a heat exchanger pipe. The heated air is then circulated for drying agricultural products using a fan, which can also eject moisture from the drying products. The heat energy used is measured in MJ/batch, and the drying capacity is measured in kilograms/cycle, with drying time measured in hours. The performance depends on the type of food being dried, and the system can continuously produce dried products regardless of weather conditions. In cases where the heat from the biomass stove is insufficient, an electric wire heater can be used as a supplementary energy source. The dryer components have the following dimensions: the electric wire heater drying cabinet is approximately 0.55 meters wide, 0.7 meters long, and 1.4 meters high, with a drying chamber capacity of around 0.42 cubic meters. It uses a 3,000 W electric wire heater as the heat source. The biomass stove is a flow-through type with a central diameter of 0.585 meters and an overall height of about 2 meters. It includes a heat exchanger system with 4 parallel pipes, each having a central diameter of 40 millimeters and a total length of 1,760 millimeters. During experimental drying using only biomass energy, the average drying rate was found to be 68.89 water/kg d.s/min m2, which is the lowest recorded value, and it took approximately 30 minutes. The fuel consumption during this process was 3.2 kg. In conclusion, the selection of this hybrid biomass and electric wire heater drying machine should be based on the actual usage conditions to achieve the highest energy efficiency and suitability. The electric wire heater is used to continuously reduce moisture content during drying, and biomass energy can be used as a supplementary or additional heat source.
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