Rotary Dryers
Mostrando 1-8 de 8 artigos, teses e dissertações.
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1. Modelling of fertilizer drying in a rotary dryer: parametric sensitivity analysis
This study analyzed the influence of the following parameters: overall volumetric heat transfer coefficient, coefficient of heat loss, drying rate, specific heat of the solid and specific heat of dry air on the prediction of a model for the fertilizer drying in rotary dryers. The method of parametric sensitivity using an experimental design was employed in t
Brazilian Journal of Chemical Engineering. Publicado em: 2012-06
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2. Análise de sensibilidade paramétrica na modelagem da secagem de fertilizantes em secador rotatório
O secador rotatório figura entre os equipamentos de maior importância em processos de secagem de diversos produtos devido ao seu elevado desempenho e grande capacidade de processamento. Consiste de um tambor cilíndrico, ligeiramente inclinado em relação à horizontal, que gira em baixa velocidade. O interior do tambor é equipado com suspensores que col
Publicado em: 2010
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3. Modeling and experimental study of hydrodynamic and drying characteristics of an industrial rotary dryer
The purpose of this work was to analyze the hydrodynamic and drying aspects of a rotary dryer used in a fertilizer industry. A set of equations to predict the solids holdup in the flights, the length of fall, the residence time of particles and the drying variables was evaluated by comparison to experimental measurements performed in an industrial rotary dry
Brazilian Journal of Chemical Engineering. Publicado em: 2009-06
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4. Analise da secagem de residuo de leite de soja "Okara" em secadores de leito de jorro e de cilindro rotativo assistido a microondas / Drying of soy milk residue in the spouted bed dryer and rotary cylindrical dryer assisted by microwaves
The use of industrial residues has become more and more important to avoid the environment contamination and to make use of resources considered wastes in the chemical and food industries. Actually, the approximated soy milk production in the world is unknown; however, it is known that large amounts of its residue, named "Okara", are generated by its product
Publicado em: 2009
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5. Comparação do desempenho do secador roto-fluidizado com o secador rotatório convencional : secagem de fertilizantes
The objective of this work was to analyze the phenomena of mass and energy transfer between heat air and the granulated simple super-phosphate in rotary dryers in the versions: conventional with cascading and roto-fluidized. A study of fluid dynamics of flowing of particles in conventional rotary dryers was made with objective of determine the conditions tha
Publicado em: 2008
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6. Estudo da fluidodinâmica e da secagem de um secador rotatório da indústria de fertilizantes
The dimensioning, the modeling and the simulation of the rotary dryers constitutes a big challenge. The drying involves mass and heat transfer, and fluid dynamics processes of the most different forms. Great part of the dryers projects are done according to empiricism and based on the experience of engineers and on the scale-up of prototypes. The purpose of
Publicado em: 2008
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7. Technical and economic analysis of corn drying in rotary dryers / Análise técnica e econômica da secagem de milho em secadores rotativos
The objective of this work was to analyze the feasibility of rotary dryers with radial air distribution, which is used in coffee processing, for corn drying. Energy consumption, drying cost and final quality of the product were evaluated. The drying air temperature was maintained at 80 and 100 C. The drying systems consisted of a commercial rotary dryer and
Publicado em: 2006
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8. Thermal drying of wastewater sludge: determination of equilibrium moisture. / Secagem térmica de lodos de esgoto: determinação da umidade de equilíbrio.
The study presents the main aspects of a thermal drying operation of the sludge produced by wastewater treatment plants, the types of equipment likely to be used for this purpose and the sorption behavior of the water contents by the dry material when in contact with the air. The thermal drying operation is an alternative to reduce the weight and volume of t
Publicado em: 2002