Design for Reliability of Static Box Bed Type Solar Dryer

This study aims to employ the Design for Reliability (DFR) tool for a solar dryer which is used for drying food grains sustainably. A static box bed type solar dryer was selected to determine the potential modes, their cause and effects, and subsequently the failure modes are ranked by evaluating Risk Priority Number (RPN) for the solar dryer. The widely used DFR tool, Failure Mode and Effects Analysis (FMEA) has been used to perform DFR on the solar dryer. The analysis revealed that highest priority should be given to the air temperature variation while designing a solar dryer. Suitable suggestions are made for design improvement.