• Mojsovski Filip Faculty of Mechanical Engineering, “Ss. Cyril and Methodius” University in Skopje, P.O. Box 464, MK-1001 Skopje, Republic of North Macedonia
  • Dimitrovski Dame Faculty of Mechanical Engineering, “Ss. Cyril and Methodius” University in Skopje, P.O. Box 464, MK-1001 Skopje, Republic of North Macedonia




drying, mixed-flow dryer, intermittent drying, paddy


A research was conducted through field tests on mixed-flow rice dryer. The realization of the planned study was carried out by applying intermittent system of drying and selection of correct drying conditions. The heat flow amount and continuity were observed and evaluated in multi-thermal zoned drying process. Hot air temperatures, up to 45 oC, were used. Paddy from local rice varieties, with the initial moisture content, wet basis, up to 26 %, was processed to the desirable final oisture content, from 8% to 12%. Reached at three levels, the final moisture content depends on intended rice use: 1) for sale, 2) for one year storage and 3) for five years storage. The effect of drying air temperature level, heat flow intensity and retention time duration on dried paddy quality was analyzed.


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