Development of dual source automated multi-crop dryer system/ Louise Shane O. Cagalaban, Nicole Mae F. Llames, Ethan Zachary A. Manaois, Jayron R. Mangundayao, Lloyd L. Medenilla, and Gabrielle P. Palomillo.--

Bachelor's thesis

College of Engineering.-- Bachelor of science in electrical engineering: Technological University of the Philippines, 2025.

Includes bibliographic references and index.

The agricultural sector of the Philippines has faced significant challenges in harvesting and
drying of crops due to climate changes and unpredictable weather conditions and the
minimal access of our country to different types of drying technologies. The study focuses
on the development of a dual-source automated multi-crop dryer system that is designed to
efficiently perform the drying process for rice, corn, and coffee beans. The machine is
equipped with an arduino-based control system and real-time sensors, the dryer ensures
precise monitoring and regulation of temperature and the moisture levels. The system
operates using conventional grid power supplemented by renewable solar energy by the
use of an automatic transfer switch, addressing both energy efficiency and operational
reliability under different environmental conditions. Initial studies suggest that the dryer
will achieve competitive drying time and optimal moisture content levels, while preserving
grain quality through uniform drying. Furthermore, the system's ability to maintain product
quality and reduce post-harvest losses holds the potential to improve farmer livelihoods
and agricultural productivity. The prototype's modular design enable scalability, allowing
it to accommodate additional crops or larger volumes in the future.