with this trend line, it is clear that the pile 5-I-SC (Shaped cordoned) has got the best results, but also, it has the drawback of the huge area occupied. Regarding the shape of the piles, the extended show better results in both cases as expected, compared to conical shape. For the outdoor piles (1-O-C and 2-O-C), their trend lines are over the others after the third to fifth days, and these lines don't reach the 10% of relative humidity. This means, that piles in open sun drying acquire moisture, probably at night, due to the proximity of the sea, less than 10 km. This also shows an unexpected
aspect of the solar greenhouse dryer, it protects against environmental moisture. Then it guarantees reaching the desired
10% in less time, and also maintains the reached humidity conditions.