Design and Fabrication of IoT Based Parabolic Solar Dryer with Phase Change Material for Enhanced Thermal Energy Storage

Abstract: Designing and fabrication of an indirect solar dryer that integrates phase change material (PCM) into a parabolic solar collector. The system aims to increase thermal efficiency and enable nighttime drying. Because of its high latent heat storage capacity, the PCM, which is paraffin wax, stores excess thermal energy during the hottest hours of the day and releases it at night. This cost-effective technique encourages sustainable drying solutions and reduces dependency on fossil fuels by optimising energy use. System performance can be monitored by Blynk app to track the humidity and temperature of the drying chamber in real time. The test results show how well the solar dryer uses solar energy to maximise drying, with a noticeable decrease in moisture as the temperature rises.This solar dyer is very easy to use and offers farmers in developing countries a sustainable method of lowering post-harvest losses