Equivalence Ratio
Mostrando 1-12 de 29 artigos, teses e dissertações.
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1. Lignocellulosic Residues from the Brazilian Juice Processing Industry as Novel Sustainable Sources for Bioenergy Production: Preliminary Assessment Using Physicochemical Characteristics
This work aims to investigate the energy-related characteristics of apple bagasse, orange bagasse and cashew-apple bagasse to identify their potential as bioenergy feedstocks. For this, a detailed characterization was performed, including proximate analysis, ultimate analysis, atomic molar ratio, heating values, chemical composition, bulk density, bioenergy
J. Braz. Chem. Soc.. Publicado em: 2020-09
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2. SIMULAÇÃO DE COMBUSTÃO DO POLIBUTADIENO LÍQUIDO HIDROXILADO, PERCLORATO DE AMÔNIO E ALUMÍNIO EM FORMULAÇÕES DE PROPELENTE SÓLIDO COMPÓSITO
The present work presents combustion simulations of hydroxyl-terminated liquid polybutadiene loaded with ammonium perchlorate and aluminum, using Chemkin software and the “Plug Flow” type reactor. These materials are widely used in solid composite propellant formulations. Through this study, the effect of parameters of axial velocity, equivalence ratio,
Quím. Nova. Publicado em: 2019-02
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3. Atherosclerotic plaque characterization using plaque area variation in IVUS images during compression: a computational investigation
INTRODUCTION: The rupture of atherosclerotic plaques causes millions of death yearly. It is known that the kind of predominant tissue is associated with its dangerousness. In addition, the mechanical properties of plaques have been proved to be a good parameter to characterize the type of tissue, important information for therapeutic decisions. METHODS: Ther
Rev. Bras. Eng. Bioméd.. Publicado em: 2014-06
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4. Large Eddy Simulation of Bluff Body Stabilized Turbulent Premixed Flame
ABSTRACT: A turbulent reacting flow in a channel with an obstacle was simulated computationally with large eddy simulation turbulence modeling and the Xi turbulent combustion model for premixed flame. The numerical model was implemented in the open source software OpenFoam. Both inert flow and reactive flow simulations were performed. In the inert flow, comp
J. Aerosp. Technol. Manag.. Publicado em: 2013-06
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5. Tradução, adaptação transcultural e validação do método intermed para a Língua Portuguesa: estudo em pacientes hospitalizados / Translation, cross-cultural adaptation and validation of the INTERMED method to the Portuguese language: study involving inpatients
The INTERMED method is an instrument that classifies the biopsychosocial complexity of patients under various levels of healthcare. It also qualifies care and improves interprofessional communication. It also allows us to evaluate patient\ s complexity by means of the investigation of four domains: biological, psychological, social and healthcare. Apart from
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/08/2012
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6. On the predictability of chemical kinetics for the description of the combustion of simple fuels
This work presents a systematic comparison between several detailed chemical kinetic models recently developed and available experimental data. The aim is to assess the predictive capabilities of the combustion with air of the following fuels: hydrogen, methane, ethanol and liquefied petroleum gas, in a large range of equivalence ratio. The prevailing thermo
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2011-12
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7. Estudo de correlação entre valores de q de Tobin obtidos pelo método de Chung e Pruitt e por fluxo de caixa descontado / Study of correlation between the values of Tobins q obtained by the method of Chung and Pruitt and discounted cash flow
The theory shows the Tobins q as a tool of high utility and high explanatory power in investment decisions, since the absolute value of q, itself, must express a strong meaning for the user. The usual technique of calculation of Tobins q, as described by Chung and Pruitt (1994) provides an assessment of the company using the market price in the denominator o
Publicado em: 2009
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8. Performance prediction and validation of equilibrium modeling for gasification of cashew nut shell char
Cashew nut shell, a waste product obtained during deshelling of cashew kernels, had in the past been deemed unfit as a fuel for gasification owing to its high occluded oil content. The oil, a source of natural phenol, oozes upon gasification, thereby clogging the gasifier throat, downstream equipment and associated utilities with oil, resulting in ineffectiv
Brazilian Journal of Chemical Engineering. Publicado em: 2008-09
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9. Localization of electronic states in DNA-like double strand model / Localização eletronica em cadeias duplas : aplicação ao DNA
In this work we discuss and compare different definitions for localization of electronic states in quase-one-dimensional systems: the 1-D case of polianilines chains and DNA-like molecules. In order to establish ranges of equivalence, the localization length from both, the conductance and participation ratio, is computed. For the 1-D case the con-ductance is
Publicado em: 2008
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10. Drying rates in shrinking medium: case study of banana
Drying of foodstuffs is used to improve product stability, but presents some potentially harmful side effects such as shrinkage. The reduction of the relative humidity of the environment was studied in this work to substitute heating during drying, also taking into account the effect on shrinkage. Drying experiments of cylindrical slices of banana were condu
Brazilian Journal of Chemical Engineering. Publicado em: 2007-12
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11. Heat losses minimization from hydrogen fueled 4-stroke spark ignition engines
This paper presents an analytical study to minimize the heat lost during the power stroke of hydrogen-fueled, 4-stroke spark ignition engine. The effects of various design and operating parameters like engine speed, equivalence ratio, ignition timing, compression ratio and spark plug location on heat losses was studied. Then, the effect of heat loss on the e
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2007-03
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12. Evaluation the use of measure of impedance in the passenger-car equivalents for tucks / Avaliação do impacto da medida de desempenho no equivalente veicular de caminhões
The objective of this research was to evaluate the use of a measure of impedance alternative to density to obtain passenger-car equivalence factors for typical trucks on multilane highways in the state of São Paulo. The impedance investigated was the passenger-car speed, and the equivalence factors were obtained through the average equivalent method since i
Publicado em: 2007