The average cabinet temperatures for each evaluation are shown in figure 5. As shown, cabinet temperatures were further reduced in loaded trials since the mango slices absorbed heat from the air. The larger discrepancy on Day 1 is a consequence of elevated moisture levels present in the initial stage of drying. It should also be noted that while solar insolation was generally similar between different evaluations, there was increased cloud coverage during Day 1 of the damper-restricted trials. Since the operation of this dryer is completely dependent on solar energy, this reduced level of insolation directly impacted dryer performance. In fact, cabinet temperatures were lower on Day 1 for the damper-restricted trials which indicated a significant reduction due to prolonged cloud cover. Thus, comparison to between shutter-restricted and unrestricted trials has been limited to data pertaining to Day 2 in this study