Drying Apparatus
Mostrando 1-12 de 14 artigos, teses e dissertações.
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1. Designing and fabrication of a low-cost dip-coater for rapid production of uniform thin films
In this work, a self-made dip-coater equipment was developed for the fabrication of thin films. The assembly of the apparatus was carried out using simple mechanical and electronic pieces, recycle parts, and spending an inexpensive budget suitably. The production, software design, and features of the device were focused on the sol-gel dip-coating method, whi
Química Nova. Publicado em: 2022
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2. Comportamiento a la corrosión atmosférica marina de aceros autopatinables con estructura ferrítico perlítica y ferrítico martensítica
ABSTRACTThe steel industry constantly faces the challenge of developing new and better steels for diverse needs, on of this necessities is the use of structural steels with higher corrosion resistance to marine atmospheres and improved mechanical properties than those that currently exist. Therefore, it is necessary to systematically research both the influe
Matéria (Rio J.). Publicado em: 2015-09
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3. Microparticles containing guaraná extract obtained by spray-drying technique: development and characterization
AbstractGuaraná (Paullinia cupana Kunth, Sapindaceae) is well known for its dietary and pharmaceutical potential, and the semipurified extract of guaraná shows antidepressant and panicolytic effects. However, the low solubility, bioavailability and stability of the semipurified extract limit its use as a component of pharmaceutical agents. Delivery of the
Rev. bras. farmacogn.. Publicado em: 2015-06
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4. An expeditious and consistent procedure for tetrahydrofuran (THF) drying and deoxygenation by the still apparatus
Despite the availability of alternative methods for drying tetrahydrofuran (THF), the use of the still apparatus, wherein a THF solution containing Na-bezophenone ketyl is heated to reflux, remains widespread. We herein propose a set of procedures to solve the problems usually faced in applying this drying technique. Moreover, a discussion is made on the che
Química Nova. Publicado em: 2009
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5. Influence of the drying air temperature on the contents and chemical composition of the essencial oil of Melaleuca alternifolia Cheel / Influência da temperatura do ar de secagem no teor e na composição química do óleo essencial de Melaleuca alternifolia Cheel
The Melaleuca alternifolia Cheel (melaleuca), also known as "Tea Tree", is a plant belonging to the family Myrtaceae. Recent studies show the use of essential oils for medical use: anti activities, acaricides, antimicrobial. Because of its medical importance, the study of the chemical and pharmacological features has been widely developed. However, the steps
Publicado em: 2008
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6. Desenvolvimento de um sistema de bomba de calor agua/agua para resfriammento e secagem de tomates / Development of a system for heat pump water/water for cooling and drying of tomatoes
O tomate destinado tanto ao consumo de mesa, in natura, quanto à produção industrial, é uma hortaliça consumida o ano inteiro, sendo o Brasil um grande produtor, nas regiões Centro Sul e em algumas regiões do Nordeste e Sul do país. Mas as perdas pós-colheita superam 50 % durante o processo de colheita e de pós-colheita. Estas perdas são principal
Publicado em: 2008
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7. A convenient method for the determination of moisture in aromatic plants
A method is proposed for the determination of the moisture content of aromatic plants. This method is based on the co-distillation of the starting material in a modified Clevenger apparatus with four organic solvents (toluene, cyclohexane, dichloromethane and carbon tetrachloride). The results were compared with those obtained by oven drying at 105 ºC and s
Química Nova. Publicado em: 2006-04
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8. Autonomous Process of Work: drying of the dispersed procedure apparatus with the adoption of the Special Working Court / Processo autÃnomo do trabalho: enxugamento do aparato processual disperso com adoÃÃo do Juizado Especial Trabalhista
Esta dissertaÃÃo pretende abordar a questÃo da necessidade de um CÃdigo de Processo do Trabalho, autÃnomo, e que possa melhor atender aos princÃpios que regem o processo trabalhista. A idÃia de um estatuto processual com institutos prÃprios que se harmonizem com o Direito Material do Trabalho, na busca de uma atuaÃÃo mais eficaz da JustiÃa do Trab
Publicado em: 2006
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9. Modelling the drying of a parallelepipedic oil shale particle
A numerical model is proposed to describe the process of drying a parallelepipedic oil shale particle. Assuming Fick's law, the diffusion equation for the shape of the particle was used. The objective of the study was to develop a computer program in Fortran to estimate the moisture content of an oil shale particle undergoing drying as a function of time and
Brazilian Journal of Chemical Engineering. Publicado em: 2005-06
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10. Investigation of paper dryer picking, web transfer and quality issues using a new web adhesion and drying simulator
Paper dryer surface contamination can influence the severity of fiber picking, result in increased adhesion of the paper web to the surface, and impact the severity of cockle (out-of-plane deformation), a paper quality issue. The Web Adhesion and Drying Simulator (WADS) is a unique apparatus designed for investigation of paper sticking and fiber picking. Usi
Brazilian Journal of Chemical Engineering. Publicado em: 2005-06
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11. Estudo fluidodinamico de um leito fluidizado pulsado rotativo com particulas secas e umidas / Rotating pulsed fluidized bed fluidynamics of dry and moist particles
The rotating-pulsed fluidized bed (RPFB) has been studied as an alternative for fluidization of materials that are difficult to operate in the Conventional Fluidized Bed (CFB). The RPFB apparatus is a conventional fluidized bed modified by the addition of a rotating plate with a 60º opening just below the distributor. The rotating plate insures a cyclic fee
Publicado em: 2005
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12. Generalization of drying curves in conductive/convective drying of cellulose
The objective of this work is to analyze the possibility of applying the drying curves generalization methodology to the conductive/convective hot plate drying of cellulose. The experiments were carried out at different heated plate temperatures and air velocities over the surface of the samples. This kind of approach is very interesting because it permits c
Brazilian Journal of Chemical Engineering. Publicado em: 2003-03