Abstract:
Among the many difficulties the agriculture industry encounters are post-harvest losses brought
on by labour-intensive and inefficient traditional drying techniques. Open sun drying exposes
items to environmental risks like rain, dust, and bugs, which lowers quality and increases spoiling
in many rural regions. Additionally, using gasoline dryers raises issues with environmental impact,
high operating costs, and mechanical failure. In order to address these problems, this study
suggests creating and implementing an automated solar dryer that makes use of cutting-edge
technologies. To improve the efficiency of the drying process, the research combines automated
technology with solar energy. The dryer considerably improves product quality by ensuring steady
and ideal drying conditions through the integration of phase change materials and thermal storage.
Automation characteristics enable continuous functioning without human supervision by reducing
the need for manpower. This study is anticipated to produce better drying efficiency, higher
production, and better local community food security. The solar dryer will be made of easily
obtained materials, guaranteeing its affordability and practicality in remote areas. This automated
solar dryer uses the following technologies: a thermocouple PT100 temperature sensor accurately
monitors the internal temperature, providing real-time feedback for adjustments; a charger
controller manages the battery charge, ensuring that energy is stored efficiently for use during non
sunny periods, thereby enhancing the system's reliability; a thermostat temperature controller
precisely regulates the temperature, ensuring ideal drying conditions; a PTC heater provides
efficient heating; and a cooling fan maintains airflow and temperature stability within the drying
chamber. This project intends to decrease agricultural waste while simultaneously increasing the
use of renewable energy, sustainable development, and environmental preservation. The study's
findings demonstrate the potential of automated solar dryers as a game-changing tool for the
agricultural industry that will improve post-harvest management while lowering expenses and
having a less negative impact on the environment. Ultimately, the introduction of such systems
could benefit the livelihoods of farmers and promote food security in rural areas.
