Pneumatic Transport
Mostrando 1-12 de 25 artigos, teses e dissertações.
-
1. Validation of blood components transport through a pneumatic tube system
ABSTRACT Introduction: Urgent blood component transfusions may be life-saving for patients in hemorrhagic shock. Measures to reduce the time taken to provide these transfusions, such as uncrossmatched transfusion or abbreviated testing, are available. However, transport time is still an additional delay and the use of a pneumatic tube system (PTS) may be an
Hematology, Transfusion and Cell Therapy. Publicado em: 2022
-
2. Application of Computational fluid dynamic in aluminum refining through pneumatic injection of powders
Magnesium removal process from molten aluminum using particles of silica sand was studied from a hydrodynamic point of view using computational fluid dynamics (CFD). The gas-liquid flow was modeled by a model of the Euler type for both gas and liquid phase transport. Newton´s law of motion was used to describe the subsurface motion of injected solid particl
Mat. Res.. Publicado em: 2014-12
-
3. On the prediction of pickup and saltation velocities in pneumatic conveying
This paper presents a comparative study of the critical pickup and saltation velocities of particles in horizontal pipelines for pneumatic conveying design. A comparative study is performed using different existing correlations in the literature for the determination of the minimum velocity of transport as a function of the particle and pipe diameter, partic
Braz. J. Chem. Eng.. Publicado em: 2014-03
-
4. Convecção forçada de partículas poliméricas em fase diluída : curvas de pressão e distribuição de partículas / Forced convection of polymer particles in dilute phase : pressure curves and the particle distribution
O deslocamento de polímeros, cereais, minérios, produtos farmacêuticos e outros materiais particulados no interior de tubulações, tendo como fluido transportador o ar, é denominado de transporte pneumático. Esta técnica é comumente dividida em transporte em fase densa, com concentração de partículas acima de 30% em volume e transporte em fase dil
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/03/2012
-
5. Montagem e operação de um secador pneumático tipo flash
Este trabalho tem como objetivo principal à concepção, montagem e operação de um secador pneumático do tipo flash com o propósito de avaliar novas configurações de secadores, apresentando uma importância regional no contexto da produção agrícola de grãos. O equipamento operou com temperaturas na ordem de 80C e velocidade do ar de secagem igual
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 08/07/2011
-
6. Desenvolvimento e implementação de um novo sistema pneumático de transferência para irradiação de materiais no reator IEA-R1 / Development and implementation of a new pneumatic transfer system for materials irradiation at IEA-R1 reactor
Pneumatic Transfer Systems (PTS) are classified as mechanical equipment largely operated all over the world for transport of a huge sort of objects, samples and materials located at nearly terminals or even at separated ones. System applicability is often recognized in many activities, such as medicine (hospital settings, clinical analysis labs), industry (s
Publicado em: 2011
-
7. On the application of self-organizing neural networks in gas-liquid and gas-solid flow regime identification
One of the main problems associated with the transport and manipulation of multiphase flow is the existence of flow regimes, which have a strong influence on important parameters of operation. An example of this occurs in gas-liquid chemical reactors in which maximum coefficients of reaction can be attained by keeping a dispersed-bubbly flow regime to maximi
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2010-03
-
8. Project and assembling of pneumatic transport pilot unit in diluted phase for studying the relationship between the pressure drop and the distribution of granular particles into the cross section of industrial pipes / Projeto e montagem de unidade piloto de transporte pneumatico em fase diluida para estudo da relação entre a perda de carga e a distribuição de particulas granulares na seção transversal de dutos industriais
The pneumatic transport that involves the use of air particles to move materials through pipes is a major operation in various industries and chemical processes. Typical examples are systems for the conversion of energy from coal, catalytic cracking, drying and transport of solid and fine granular. The conventional pneumatic transport is often operated in di
Publicado em: 2009
-
9. The influence of variable operating conditions on the design and exploitation of fly ash pneumatic transport systems in thermal power plants
The efficiency of an air-slide pneumatic conveying system depends, first of all, on several basic elements chosen or calculated during the design of a plant: air-slide design parameters, air mover characteristics, as well as the physical and chemical properties of the material to be transported. However, during the exploitation of this type of system which i
Brazilian Journal of Chemical Engineering. Publicado em: 2008-12
-
10. Influência do alimentador de sólidos na fluidodinâmica do transporte pneumático.
Pneumatic transport is an operation where powdery and granular materials are conveyed through a pipeline suspended in a gas flow. It is usually found in several industries segments and it is used as a carrier, such as, in beans production; drying operation, like grain dryers; or as reactors, in cracking catalytic reactions, combustion operations and precalci
Publicado em: 2007
-
11. Desenvolvimento e análise de uma fornalha para aquecimento direto e indireto de ar utilizando biomassa polidispersa / Development and analysis of a furnace for both direct- and indirect air heating by using polydispersive biomass
A heat-generation system with option to direct or indirect heating of the air, that could be used in drying agricultural products or heating zootechnical facilities was developed and evaluated. The developed furnace has a heat changer with concentric countercurrent-flux tube, and it was fed polydispersive biomass by pneumatic transport or manually with bioma
Publicado em: 2007
-
12. ConstruÃÃo de uma bancada de ensaio para avaliaÃÃo de mecanismos dosadores de sementes / Construction of a workbench of essay for evaluation of mechanisms distributor of seeds
The current work aimed the construction of a benches group for simulating displacement speeds of sowers. The speeds simulator was performed and was carried out in the mechanical trials laboratory located at UTFPR - campus Medianeira, and the assays of systemÂs evaluation were performed at the Agricultural Engineering Experimental Nucleous - AEEN, which belo
Publicado em: 2006