Inductive Heating
Mostrando 1-9 de 9 artigos, teses e dissertações.
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1. High-Frequency Induction Heating of Al-Si-Cu-Mg aluminum alloy in Thixoforming
Thixoforming is the process of shaping near net shape metal components in a semisolid state. The process consists of preparing feedstock, reheating and shaping. Reheating the billet is the most critical step in thixoforming. Induction heating requires precise temperature control to obtain globular microstructure and prevent process defects, such as insuffici
Mat. Res.. Publicado em: 28/10/2019
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2. NUMERICAL MODELING OF HEAVY HYDROCARBON LIQUID HEATING
Abstract The results of two-dimensional mathematical modeling of heat and mass transfer in a highly viscous hydrocarbon liquid by inductive and radio-frequency (RF) electromagnetic (EM) heating are presented. The model takes into account the dependence of the liquid's viscosity and thermal conductivity on the temperature and also the presence of thermal conv
Braz. J. Chem. Eng.. Publicado em: 2016-03
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3. The analysis of Alfvén wave antenna implementation in the ETE spherical tokamak
The preliminary design study of the Alfvén wave system for the ETE spherical tokamak is presented. The main objective of the proposed RF system is generation of travelling Alfvén waves, which can be used for the study of the non-inductive current drive and the plasma heating in a wide range of operational regimes, which are specific for tokamaks with small
Brazilian Journal of Physics. Publicado em: 2004-12
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4. Módulo eletrônico de controle para válvulas solenóides
This technical note describes a new and simple electronic circuit for driving solenoid valves. The circuit is based on a single integrated circuit DRV103, which is able to drive resistive or inductive loads up to 1.5 A. Switching of 12-V loads can be controlled by TTLlevel signals in two distinct steps. Initially, 12 V is applied during 110 ms, followed by 4
Química Nova. Publicado em: 2002-09
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5. THERMAL ANALYSIS OF WAX BLOCKAGES REMOVAL IN PETROLEUM SUBSEA PIPELINES BY INDUCTIVE HEATING / ANÁLISE TÉRMICA DA REMOÇÃO DE BLOQUEIOS DE PARAFINA EM LINHAS SUBMARINAS DE PETRÓLEO UTILIZANDO AQUECIMENTO INDUTIVO
Bloqueio total de linhas submarinas de produção de petróleo devido ao depósito de parafina é um problema relevante para a indústria. Esse problema tem levado a perdas significativas associadas à diminuição de produção e à substituição de linhas obstruídas. O presente trabalho é um estudo sobre a viabilidade técnica de um procedimento para re
Publicado em: 2002
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6. Efeito da adição de elementos ternarios na microestrutura e propriedades do composito in situ Ni-Ni3Si
The fabrication of the structural components for the application in high temperatures and aggressive environments requires the use of materials that retain their chemical, mechanical and physical properties within the proper limits, even above 1000°C. In diverse systems, eutectic structure exhibits inherent thermal stability and permits obtaining an in situ
Publicado em: 2002
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7. Obtenção, crescimento direcional e caracterização das estruturas euteticas Al3Nb-Nb2Al e Al3Nb-Nb2AL-AlNbNi
The manufacture of structural components for application in high temperatures and aggressive environments involves the use of materials that maintain their chemical, mechanical and physical properties even in temperatures above 1000°C. A possible altemative to meet such requirements is the use of directionally solidified euteetie alloys. Such process allows
Publicado em: 2000
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8. Obtenção e caracterização de materiais compostos In Situ no sistema Fe-Al-Nb
Eutectic alloys formed by high melting point intermetallics phases, as in the case of the system formed with Fe, Al and Nb elements are promising material to be used as structural materials. This system presents eutectic structures formed by (FeAl)2Nb phase surrounded by (FeAl) solid solution. Depending on solidification conditions the eutectic structures ca
Publicado em: 1998
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9. Pyrolytic Methylation-Gas Chromatography of Whole Bacterial Cells for Rapid Profiling of Cellular Fatty Acids
A novel, on-line derivatization technique has been developed which enables generation of fatty acid methyl ester (FAME) profiles from microorganisms by gas chromatography-mass spectrometry without the need for laborious and time-consuming sample preparation. Microgram amounts of bacterial cells are directly applied to a thin ferromagnetic filament and covere