ABSTRACT
This research tackles the significant issue of post-harvest food loss, a consequence of insufficient preservation techniques in areas with intense solar radiation. The study introduces the development and implementation of a cost-effective, high-efficiency mixed-mode solar dryer that harnesses both direct and indirect solar energy to optimize the crop drying process. The objective is to bolster food preservation, diminish reliance on non-renewable energy sources, and provide a lasting agricultural solution for rural communities. Utilizing local materials and solar energy, the initiative aims to counteract the repercussions of crop failures and seasonal fluctuations, thereby ensuring a consistent food supply and superior quality produce for the market. The scope of the research includes the design, selection of materials, and evaluation of the solar dryer's performance, concentrating on the efficiency of the collector and the efficacy of drying. The project's goal is to design, build, and assess the performance of the solar dryer, employing materials obtained within the community. It addresses the limitations of current drying technology, such as weather dependence and inconsistent heating, and suggests enhancements such as composite materials and an auxiliary solar battery to maintain dryer efficiency irrespective of climatic changes. The documentation provides comprehensive design details, specifications, and material choices, with an emphasis on affordability, longevity, and accessibility. The study culminates in a decision matrix to determine the most feasible dryer model and delineates the methodology for the solar dryer's design and construction process.