Casing
Mostrando 1-12 de 40 artigos, teses e dissertações.
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1. Studies on Heat Flux Imparted on Thermal Insulation Inside Rocket Motor Containing Double Base Propellant
ABSTRACT Thermal insulation inside the rocket motor experience severe pressure and temperature conditions. Experimental determination of heat flux imparted to thermal insulator inside the rocket motor during the static firing is a challenging task. This paper reports experimental determination of heat flux for double base propellant (DBP) in small rocket mot
J. Aerosp. Technol. Manag.. Publicado em: 10/07/2019
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2. Thermomechanical Characteristics of a Functionally Graded Mounted Uniform Disc with/without Rigid Casing
ABSTRACT In the present paper, thermomechanical attributes of a power-law graded uniform mounted disc with or without rigid casing are investigated analytically under centrifugal and steady-state thermal loads within the framework of axisymmetric infinitesimal plane-stress elasticity theory. Young's modulus, material density, thermal expansion coefficient an
J. Aerosp. Technol. Manag.. Publicado em: 13/06/2019
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3. Leakage Resistance Envelopes of API 8 Round Casing Connections using FE Analysis
Abstract Leakage resistance of casing connections can be evaluated by extremely expensive testing procedures. Although testing is required for connection validation, significant amount of resources can be saved by complementing testing with Finite Element (FE) analysis. In this regard, a broadly accepted criterion to characterize leaks in FE simulation is st
Lat. Am. j. solids struct.. Publicado em: 21/03/2019
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4. A Parametric Study on the Centrifugal Force-Induced Stress and Displacements in Power-Law Graded Hyperbolic Discs
Abstract An extensive parametric study on the variation of the centrifugal-force-induced stress and displacements with the inhomogeneity indexes, profile parameters and boundary conditions is conducted based on the author’s recently published analytical formulas for radially functionally power-law graded rotating hyperbolic discs under axisymmetric condit
Lat. Am. j. solids struct.. Publicado em: 15/05/2018
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5. Evaluation of Standard API Casing Connections and Parametric API Buttress Improvement by Finite Element Analysis
Threaded and coupled connections generally present a non-uniform stress distribution, which is related to the higher stiffness of the box when compared to the pin. The non-uniform stress distribution can contribute to fatigue cracks and other failure modes in high pressure oil wells. An API 5CT P110 steel obtained from a seamless pipe was mechanically charac
Mat. Res.. Publicado em: 08/12/2016
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6. Staphylococcus xylosus fermentation of pork fatty waste: raw material for biodiesel production
ABSTRACT The need for cleaner sources of energy has stirred research into utilising alternate fuel sources with favourable emission and sustainability such as biodiesel. However, there are technical constraints that hinder the widespread use of some of the low cost raw materials such as pork fatty wastes. Currently available technology permits the use of lip
Braz. J. Microbiol.. Publicado em: 2016-09
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7. Qualidade e vida de prateleira de patê elaborado com subprodutos comestíveis do abate de ovinos. / Quality and shelf life of pâté made with edible by-products from slaughtered lamb.
Many edible meat by-products, produced from the lamb slaughter, are often wasted, although they represent excellent sources of many nutrients. The preparation of pâté may be an alternative to the use of this raw material, and contribute to the development of lamb sector by the offer of new products to the consumer market. The objective of this work was to
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 20/04/2012
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8. Sustratos de cobertura y suplementación del compost en cultivo de champiñón
The objective of this work was to describe the behavior of pine bark, coconut fiber, and spent mushroom substrate, as casing layers, in the button mushroom (Agaricus bisporus) cultivation. After the physical, chemical and biological characterization of these casing layers, qualitative and quantitative yield parameters were evaluated in a mushroom crop cycle
Pesq. agropec. bras.. Publicado em: 2012-08
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9. Análise de cobertura de metal-metal por XRF / Analysis metal casing metal by XRF
A proposta do referente estudo foi medir a espessura do depósito de um metal em outro metal base, ou seja, utilizar o processo eletroquímico de Galvanoplastia ou eletrodeposição deste metal, por meio da técnica de fluorescência de raios X (XRF). O uso desta técnica justificou-se pelo interesse em reduzir os custos excessivos durante o processo eletroq
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 14/10/2011
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10. Efeito de adições poliméricas na aderência de pastas de cimento a tubos metálicos após ciclagem térmica
Atualmente, os métodos com maior índice de sucesso de recuperação de óleos pesados são os térmicos, principalmente a injeção de vapor. Este método de recuperação coloca a interface entre o revestimento metálico e a bainha de cimento em ciclagem térmica, que devido à diferença de coeficientes de expansão entre os dois materiais pode provocar
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 21/07/2011
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11. Production flush of Agaricus blazei on Brazilian casing layers
This study aimed to verify the biological efficiency and production flushes of Agaricus blazei strains on different casing layers during 90 cultivation days. Four casing layers were used: mixture of subsoil and charcoal (VCS), lime schist (LSC), São Paulo peat (SPP) and Santa Catarina peat (SCP); and two genetically distant A. blazei strains. The fungus was
Brazilian Journal of Microbiology. Publicado em: 2011-06
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12. Determination of stall and choke limits of a transonic axial flow compressor using the straemline curvature method
The necessity for high performance axial compressors for various applications is shown. The basic theory associated with the study of these machines is presented. A method for calculating the properties of the flow along the compressor is presented. Depending on the design requirements the number of stages is selected and an appropriate shape of the channel
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 27/10/2010