Speed Flame
Mostrando 1-9 de 9 artigos, teses e dissertações.
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1. Numerical Study of the b-Ξ Flame Wrinkling Combustion Model in Oracles Test Rig
ABSTRACT: Numerical modeling of premixed combustion is important for a wide range of machines and systems focusing on compliance with the increasing pollutants reduction requirements. However good industrial numerical combustion models need a practical requiring, in this way, a balance between speed and accuracy. The flamelet models are suitable for this pur
J. Aerosp. Technol. Manag.. Publicado em: 2015-12
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2. FOREST FIRES IN MOUNTAIN NATIONAL PARK OF ITABAIANA - SERGIPE. / INCÊNDIOS FLORESTAIS NO PARQUE NACIONAL SERRA DE ITABAIANA SERGIPE.
This research was developed with the objective to determine the forest fire danger index that is the most efficient to predict forest fire inside the National Park Serra de Itabaiana. It also simulates the characteristics of the fire inside each type of vegetation, in order to characterize the risk in each situation. To simulate the forest fires, was used th
Publicado em: 2010
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3. Análise qualitativa do ciclo real e tempo de combustão em um motor padrão ASTM-CFR operando com mistura de gasolina e etanol hidratado
A duração da combustão tem implicação direta na determinação do trabalho negativo no ciclo motor. A duração da combustão tem relação inversa com a velocidade de propagação da chama. Assim, quanto maior a velocidade de propagação da chama, menor a duração da combustão. Além disto, a duração da combustão está relacionada com a relação
Publicado em: 2010
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4. Efficiency of flamers in the weeds control / Eficiencia de flamejadores no controle de plantas daninhas
In agricultural production systems have been employed various techniques to achieve the goals focused on sustainability. Tactics or tools of management are adopted in order to provide greater productivity, lower impact on natural resources and better human development. The control of weeds in these systems has sued constant studies for improving performance
Publicado em: 2009
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5. Estudo das caracteristicas de inflamabilidade de polimeros utilizados na construção civil e industria de transportes / Study of flammability characteristics of polymers used in buildings and automobile industry
The polymer materials are being used in several applications. The great number of existent monomers, as well as the possibility of copolymers synthesis, polymeric alloys formulation and the composites and nanocomposites show that it is possible to obtain materials with different specific properties and for being used in different application areas. However,
Publicado em: 2008
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6. Avaliação experimental da duração de combustão para diferentes combustíveis, em um motor padrão Ciclo Otto ASTM-CFR
Neste trabalho se desenvolve e se avalia uma metodologia para determinar a duração de combustão de alguns combustíveis em um motor padrão à combustão interna (ASTM-CFR - Cooperative Fuel Research), tendo-se em conta que a duração da combustão está relacionada com a velocidade de propagação da chama e que a relação de compressão, a condição
Publicado em: 2007
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7. Numerical analysis of the turbulent coaxial jets / Análise numérica de jatos coaxiais turbulentos
The understanding of the jets behavior is of extreme importance in several practical applications in combustion and propulsion. Therefore, it becomes more and more important the detailed analysis of the parameters that affect the characteristics of this type of flow. This work presents a numerical study of the incompressible turbulent coaxial jets characteri
Publicado em: 2007
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8. Metodologia experimental para a maximização do desempenho de um motor multicombustível turboalimentado sem prejuízo à eficiência energética global
The new trends of the automotive market require the development of a new concept of engines using different types of fuel, mainly those resulting from alternative sources of energy. Moreover, the multifuel engines available in the market display only one volumetric compression ratio, which leaves space for the development of systems that allow for different
Publicado em: 2006
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9. Resistencia flexural de ligas do sistema Co-Cr antes e apos a refusão submetidas ou não a soldagem
The purpose of this investigation was to determine the flexural strength of Dentorium, Duracrom and Steeldent, commercially available Co-Cr based alloys, subdued or not to soldering procedure, using only new alloy or a mixture of new and previously casted alloy. Twenty dumb-shaped specimens were manufactured for each one of the alloys, divided into four grou
Publicado em: 1993