FUNDAMENTALS OF LIQUID SPRAY TECHNIQUES |
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| Authors: | Dr K. Erdesz Prof A. S. Mujumdar |
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| Affiliation: | 1. Research Institute for Industrial Chemistry of the Hungarian Academy of Sciences , Veszprem, 8200, Hungary;2. Department of the Chemical Engineering , Mc Gill University , Montreal, PQ, Canada , H3A 2A7 |
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| Abstract: | Two twin forced convection dryers of 1.5 m3 were built in Majorca (Spain). They are of a mixed kind, with solar air collectors and a green house type chamber. A wooden frame supports polycarbonate walls. After two years operation they have been proven weather resistant. Six solar air collectors 2.12 × 1.05 m were used in each dryer. Apricots were processed in both dryers and at open sun. Three different tray heights were tested 5, 9 and 12 cm. The best results were obtained with 12 cm trays. Recycling part of the exhaust air improves the efficiency of the dryer. Blanching the fruits makes no difference to the dehydration rate. The rate of SO2 loss during the drying process is higher within the chamber. |
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| Keywords: | Mixed kind solar dryer solar drying of apricots sulfiting blanching tray height effect. |
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