Browsing Teses e dissertações by Subject "Secagem"
Now showing items 1-20 of 40
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Secagem em leito fixo de sementes com mucilagem.
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Engenharia Química - PPGEQ, , 06/04/2004)Attempting to contribute with the studies on mucilaginous seeds drying, the objective of this work is to study the simultaneous heat and mass transfer during drying in fixed bed of papaya seeds with and without mucilage. ... -
Secagem de sementes de gramíneas (Brachiaria brizantha) em leito fluidizado
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Engenharia Química - PPGEQ, , 05/12/2008)Drying operation is an important stage of the processing that precedes the storage of seeds, since that with low moisture contents, these can retain their power of germination and other qualities for long periods. The ... -
Desenvolvimento, caracterização e secagem de sementes com cobertura artificial.
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Engenharia Química - PPGEQ, , 11/12/2003)The studies on the preparation and drying of seeds with artificial coat covering promote the integration of the referring research lines for drying of seeds and gel. Thus, the aim of this research were carried out a ... -
Estudo fluidodinâmico e térmico no transportador pneumático com alimentador tipo jorro
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Engenharia Química - PPGEQ, , 05/08/2009)The pneumatic conveyor using a spouted bed as a particle feeding method has been studied in the past years in the Centro de Secagem/DEQ/UFSCar. In the literature there are some studies related to the fluid dynamics behavior ... -
Secagem de gel ágar.
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Engenharia Química - PPGEQ, , 29/02/2000)Agar-agar is a hydrofilic colloid extracted from seaweed, mainly from algae Gelidium. It s used as culture medium in microbiology and as emulsificant, stabilizer and gelling in foods. Drying is an important operation in ... -
Secagem de cenoura (Daucus carota L.) em microondas
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Engenharia Química - PPGEQ, , 18/03/2010)Carrot is a root plant of the same name, Daucus carota L.. This vegetable has a high consumption and its use as an ingredient in the formulation of industrial products has increased in recent years. The main appeal of the ... -
Avaliação das condições operacionais na taxa de evaporação de água em leito de jorro
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Engenharia Química - PPGEQ, , 09/03/2012)In this work, the influence of operating conditions on the evaporation rate of water was analyzed for drying in a spouted bed. Experiments were done for two different inlet air geometries and inert particles loads for ... -
Evolução da forma e encolhimento de um sistema gel durante a secagem por convecção forçada
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Engenharia Química - PPGEQ, , 05/09/2003)Knowledge of the shape evolution and shrinkage of a spherical gel system during drying by forced convection significantly enhances the understanding of this process under the vision of the transport phenomena. This work ... -
Secagem convectiva da folha de Aroeira (Schinus terebinthifolius Raddi) em tambor rotativo com parede perfurada: influência das condições operacionais na preservação da cor e compostos bioativos
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Engenharia Química - PPGEQ, Câmpus São Carlos, 26/08/2021)This study investigated drying aroeira (Schinus terebinthifolius Raddi) leaves in a rotating dryer with a perforated wall to evaluate the influence of operating conditions in the preservation of color, and bioactive compounds ... -
Estudo da secagem de sementes de embaúba em leito fluidizado
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Engenharia Química - PPGEQ, , 08/03/2012)Due to the importance of conservation of ecosystems and having Cecropia glaziovi.S as a pioneer species of the Tropical Forests, this plant becomes indispensable in reforestation areas altered wild. The drying operation ... -
Análise da secagem convectiva de folhas de manjericão (Ocimum basilicum L.)
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Engenharia Química - PPGEQ, , 19/03/2013)Convective drying of leaves involves heat and mass transfer in packed-beds of deformable material, since the leaves shrink significantly when the moisture is removed. Therefore, the packing structure changes over time, and ... -
Secagem de pimenta-do-reino preta (Piper nigrum L.) em secador de leito fixo
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Engenharia Química - PPGEQ, Câmpus São Carlos, 27/08/2015)The black pepper is the most important spice commercialized globally, with Brazil being one of the main producers in the world. Yet few studies to optimize the production of this commodity process have been found in the ... -
Análise do desempenho do leito vibrofluidizado na secagem de pasta
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Engenharia Química - PPGEQ, Câmpus São Carlos, 05/05/2017)The agitation promoted by the vibrofluidized bed allows the incorporation of several unitary operations such as granulation, coating of particle, drying of grains, and the drying of pasty materials. However, it is necessary ... -
Secagem de materiais pastosos e granulares no leito de jorro mecânico e convencional
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Engenharia Química - PPGEQ, Câmpus São Carlos, 02/06/2017)This study had the objective to assess the behavior of a mechanically spouted bed compared to a conventional spouted bed through attrition of particulate matter, thermal and mass analysis during water evaporation and through ... -
Acúmulo, elutriação e recuperação do produto na secagem de pasta em leito de jorro
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Engenharia Química - PPGEQ, Câmpus São Carlos, 09/03/2018)One of the equipment that has been highlighting mainly in the drying of pastes and solutions is the spouted bed. In this type of equipment some factors that can make it impossible to use are operational problems caused by ... -
Secagem de cevada: análise da anatomia e do meio de transporte
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Engenharia Química - PPGEQ, Câmpus São Carlos, 23/03/2018)Despite the recent motivations for application in the food industry, the characterization of polished barley grains is still scarce in the literature. In this way, the objective of this work was the experimental analysis ... -
Avaliação por CFD da fluidodinâmica e da transferência de calor em leitos de jorro para diferentes ângulos da base cônica
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Engenharia Química - PPGEQ, Câmpus São Carlos, 27/02/2019)The spouted bed is an equipment that provides fluid-particle contact due to the cyclic movement of solids in its interior, which results in high rates of heat and mass transfer between phases. The spouted bed is used in ... -
Secagem convectiva de folhas visando a obtenção de compostos bioativos via extração supercrítica
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Engenharia Química - PPGEQ, Câmpus São Carlos, 11/04/2019)In this work, an investigation through experimentation and mathematical modeling was carried out with the intention of evaluating the drying process of pitangueira (Eugenia uniflora L.) and olive tree (Olea europaea L.) ... -
Secagem em leito fixo de materiais granulares com diferentes esfericidades
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Engenharia Química - PPGEQ, Câmpus São Carlos, 19/02/2019)The drying process of particulate biological materials in fixed bed is influenced by several factors associated with the particles and the bed packing. The main objective of this research was to evaluate the drying of ... -
Secagem de pimenta dedo-de-moça (Capsicum baccatum var. pendulum) em secador convectivo horizontal
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Engenharia Química - PPGEQ, , 28/05/2010)The cultivation of pepper is widespread in Brazil since its colonization. This plant, besides being much appreciated in the cuisine has proven pharmacological effects such as lowering cholesterol, inhibiting appetite and ...