Pressure And Steam
Mostrando 1-12 de 54 artigos, teses e dissertações.
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1. SEQUENTIAL PROCESSING OF Psidium guajava L. LEAVES: STEAM DISTILLATION AND SUPERCRITICAL FLUID EXTRACTION
ABSTRACT Extracts from the leaves of Psidium guajava L have been studied due to their importance as a source of natural antioxidant components with possible applications in the pharmaceutical and food industries. In this work, the sequential use of steam distillation and supercritical fluid extraction was studied to obtain the essential oil from the leaves a
Braz. J. Chem. Eng.. Publicado em: 15/07/2019
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2. Influence of aseptic surge tank venting on equipment sterilization
Resumo Tanques assépticos (AST) são sistemas aplicados para estocagem do produto estéril até o envase, mantendo a condição de esterilidade comercial obtida nas etapas anteriores do processo. Para evitar a recontaminação microbiológica do produto, uma condição de esterilidade deve ser alcançada no tanque antes da produção, pela aplicação de u
Braz. J. Food Technol.. Publicado em: 14/03/2019
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3. Pacotes molhados: o aumento do tempo de secagem aumenta o consumo de água (recurso natural escasso)?
Resumo Objetivo: Este estudo tem como objetivo comparar o consumo de água e energia em quatro configurações do ciclo (número de pulsos na fase de condicionamento, tempo de secagem e valor de ajuste da profundidade do vácuo) para esterilização a vapor. Métodos: Estudo descritivo de quatro diferentes configurações de ciclo: na configuração A, os
Acta paul. enferm.. Publicado em: 2019-02
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4. SYNTHESIS OF 2,6-DIMETHYLNAPHTHALENE OVER SAPO-11, SAPO-5 AND MORDENITE MOLECULAR SIEVES
Abstract Shape-selective methylation of naphthalene over SAPO-11, SAPO-5 and mordenite molecular sieves were carried out in a fixed-bed flow reactor under atmospheric pressure. Methanol and mesitylene were used as methylation and solvent agents. The experiment results showed that SAPO-11 exhibited higher stability, higher selectivity of 2,6-dimethylnaphthale
Braz. J. Chem. Eng.. Publicado em: 2017-01
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5. Morphological characterization with image analysis of cocoa beverage powder agglomerated with steam
In this study, the morphological characteristics of cocoa beverage powder granules under minimal, average, and maximal process conditions of a steam agglomerator were studied. a stereoscopic microscope coupled to a digital camera was used for the morphological analysis. The images were analyzed to obtain shape and size descriptors. aiming to evaluate the des
Food Sci. Technol. Publicado em: 2014-12
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6. Estudos de processos avançados em geração termelétrica utilizando leitos fluidizados consumindo biomassa / Advanced studies on power generation processes based on fluidized beds consuming biomass
A study aiming maximizing the efficiency of an advanced combined power generation process has been developed. The process applies a pressurized fluidized bed boiler consuming sugar cane bagasse fed as slurry. The generated steam is diverted to a reheated Rankine cycle while the gas exiting the boiler is directed to a gas turbine process. Many assumptions hav
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 23/07/2012
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7. Multistage axial-flow turbines : design and performance analysis
Plans for developing turbines in Brazil were present on the conception of CTA six decades ago. In this manner highly specialized work teams is needed to carry out such activity. The Center for Reference on Gas Turbine group has been contributing to research activities at CTA taking account of the study of gas turbines both aeronautical and industrial. In ord
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/06/2012
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8. Análise termodinâmica de processos de reforma do metano e da síntese Fischer-Tropsch / Thermodynamic analysis of methane reforming processes and Fischer-Tropsch synthesis
The reactions of reforming of light hydrocarbons, especially natural gas, are chemical reactions of great importance and represent key steps for large scale production of hydrogen for use in hydrogenation reactions or fuel cells, or synthesis gas production, for application in the ammonia or methanol production, or to Fischer-Tropsch (FT) synthesis. The Fisc
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/03/2012
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9. Estudo da degradação energética em tubulações industriais
At REGAP, boiler feed water with high pressure is delivered from pumps 121-P- 01A/B/C/D, located at Utilities Unit, for various utilities clients within the refinery: boilers F-121-01A/B/ C, boilers 103-E-01, the steam generator 209-V-03 and furnace 52-F-01A/B. These customers are spread over a vast area and have a range of demands of pressure. To be able to
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/02/2012
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10. Estudo da perda de carga e calor no poço injetor no processo De drenagem gravitacional assistida por vapor (SAGD)
The oil companies in the area in general are looking for new technologies that can increase the recovery factor of oil contained in reservoirs. These investments are mainly aimed at reducing the costs of projects which are high. Steam injection is one of these special methods of recovery in which steam is injected into the reservoir in order to reduce the vi
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 09/09/2011
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11. APPICATION OF FUZZY LOGIC IN CONTROL THE CRYSTALLIZATION OF AN ABSORPTION REFRIGERATION SYSTEM WITH PAIR WATER LITHIUM BROMIDE / Aplicação da lógica fuzzy no controle da cristalização de um sistema de refrigeração por absorção com par brometo de lítio
This work presents theoretical and experimental study of a system of control for a steam generator. This system was developed to control the crystallization of a cooling system for absorption. The control system maintains the pressure generator above the zone of crystallization of diagram temperature pressure-saturated solution concentration of LiBr-water. T
Publicado em: 2010
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12. Consideraciones termodinámicas entre la formación de poros y la presión hidrostática durante la soldadura subacuatica mojada
The pores and cracks formations in weld bead during underwater wet welding are the main cause that prevent to reach the required mechanical properties of the weld metal. These defects are closely associated with the decomposition of the water molecule under conditions of electric arc. In this paper the thermodynamic calculations of the complex process of the
Soldagem & Inspeção. Publicado em: 2009-06