Optimization of Direct Passive Solar Dryer and Raised Drying Platform for Cassava Drying James Menya1, 2, Peter Tumutegyereize1, Isa Kabenge1, and Julia Kigozi1 Abstract Cassava (Manihot esculenta, Crantz) is one the most important root crops in the world, providing energy to consumers due to the large amount of carbohydrates. However,