Validation of an experimental prototype of thick-layer fixed bed dryer and determination of the quality of the dried soybean grains

dc.creatorPaulo Carteri Coradi
dc.creatorÂngelo Francisco Calegare Lemes
dc.date2018
dc.date.accessioned2026-07-07T03:55:32Z
dc.descriptionThe aim of this study was to validate an experimental prototype dryer with a thick-layer fixed bed and determine the quality of the dried soybean grains. The drying system was designed as a chamber with four independent drying cells, with a capacity of 164 kilograms, an air ventilation system and heating with electric heaters. This prototype was used for soybeans with an initial water content of 17% (w.b.). The samples were collected from the top, middle and bottom of the four cells to evaluate the quality of the grains. The experimental design was completely randomized factorial (3 x 4 x 3), with three temperatures settings for the drying air (30, 40, and 50°C), four drying cells and three evaluation positions (upper, middle and lower). The grains did not undergo quality changes as a function of the drying cells. In the upper part of the drying cells, there was a reduction in the specific grain mass (851 kg m-³), an increase in electrical conductivity (140.02 μS cm-1 g-1), reduction in germination (63%) and oil content (7%) compared with the middle and lower dryer positions. The experimental prototype of the fixed bed dryer allowed a uniform distribution of the heated air in the drying cells, which was effective in the drying operation and in maintaining the quality of the soybean grains.
dc.formatapplication/pdf
dc.identifier1679-9275
dc.identifierhttps://www.redalyc.org/articulo.oa?id=303058204004
dc.identifierhttps://www.redalyc.org/journal/3030/303058204004/
dc.identifierhttps://www.redalyc.org/journal/3030/303058204004/html/
dc.identifierhttps://www.redalyc.org/journal/3030/303058204004/303058204004.epub
dc.identifierhttps://www.redalyc.org/journal/3030/303058204004/movil
dc.identifier10.4025/actasciagron.v40i1.35285
dc.identifier.urihttp://hdl.handle.net/123456789/447623
dc.languageen
dc.publisherUniversidade Estadual de Maringá
dc.relationhttp://www.redalyc.org/revista.oa?id=3030
dc.rightsActa Scientiarum. Agronomy
dc.sourceActa Scientiarum. Agronomy (Brasil) Vol.40
dc.subjectAgrociencias
dc.titleValidation of an experimental prototype of thick-layer fixed bed dryer and determination of the quality of the dried soybean grains
dc.typeartículo científico

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