Buscar
Mostrando ítems 11-20 de 495
Análise e simulação de um motor quatro tempos a gasolina
(Universidade Federal do Rio Grande do NorteBrasilUFRNENGENHARIA MECÂNICA, 2020-07-24)
A virtual model of a four-stroke spark ignition internal combustion engine based on the EA211 model was developed. Using the Diesel-RK software to perform the simulations, obtain results and generate graphics. Using the ...
Adição de chamote de velas de ignição inservíveis na obtenção de cerâmica branca a base de alumina
(Universidade Federal do Rio Grande do NorteBRUFRNPrograma de Pós-Graduação em Engenharia MecânicaTecnologia de Materiais; Projetos Mecânicos; Termociências, 2010-01-21)
This work presents research into the addition of chamotte obtained from the ceramic isolator of unusable spark plugs in formulations of material mixes for standard white ceramic material with aluminum oxide bases. After ...
In-cylinder flow control in a 4-valve spark ignition engine: numerical and experimental steady rig tests
(Professional Engineering Publishing Ltd, 2011-06)
Computational fluid dynamic (CFD) simulations and experimental steady
flow tests (flow discharge, swirl, and tumble) were carried out to study
the in-cylinder flow in a commercial four-valve spark ignition engine.
The ...
Desenvolvimento de rota tecnológica para produção de compósito de Nb-15%Cu utilizando moagem de alta energia e sinterização por SPS (spark sintering) visando aplicação em contatos elétricos
(BrasilUFRNPROGRAMA DE PÓS-GRADUAÇÃO EM CIÊNCIA E ENGENHARIA DE MATERIAIS, 2019-06-04)
Several materials are currently used for the production of electrical contacts, heat sinks and
coils, with characteristics similar to those of the Nb and Cu composite studied in this work. In
this way, the study and the ...
Estudo da adaptação de um motor monocilíndrico de ciclo Otto em ciclo Atkinson
(Universidade Tecnológica Federal do ParanáPato BrancoBrasilDepartamento Acadêmico de MecânicaEngenharia MecânicaUTFPR, 2017-06-09)
Internal combustion engines are present in our daily lives, as in cars, buses, trucks, among others. They are used to transform the chemical energy of fuel into mechanical energy. With environmental legislation increasingly ...
Modelo ar-combustível de tempo finito de adição de calor de motores Otto
(Universidade Tecnológica Federal do ParanáGuarapuavaBrasilEngenharia MecânicaUTFPR, 2017-06-29)
The air standard internal combustion engines study assumes that several thermodynamic properties for the work fluid are constant, and also admits this fluid is pure air or ideal gases. Clearly, the error from using this ...
Uma contribuição para a avaliação do número de octano de misturas de hidrocarbonetos
(Universidade Tecnológica Federal do ParanáCuritibaBrasilPrograma de Pós-Graduação em Engenharia Mecânica e de MateriaisUTFPR, 2018-05-18)
A new methodology for estimating the octane number of commercial gasolines and intermediate oil refinery streams is presented in this work. Chemical composition as well as physicochemical properties and octane numbers of ...
Diseño y construcción de módulos didácticos de aprendizaje del sistema de iluminación del automóvil chevrolet spark life 2018 como parte del proyecto salesiano TESPA
(2022-09)
The implementation of didactic material in training centers is of great importance to establish a complete education, where the teaching process improves, due to the fact that theoreti cal and practical instruction is ...
Using national culture, traditions and customs to spark speaking skills interest in students language learning.
(Universidad de Guayaquil. Facultad de Filosofía, Letras y Ciencias de la Educación., 2023-03)
Esta investigación fue desarrollada en los estudiantes de noveno año EGB de la Unidad Educativa “26 de Septiembre” durante el Periodo Electivo 2022 – 2023, con el objetivo de establecer como el uso de la Cultura, Tradiciones ...
Ideação à inovação disruptiva: um estudo de caso sobre seus condicionantes
(Universidade Federal de São CarlosBRUFSCarPrograma de Pós-Graduação em Engenharia de Produção - PPGEP, 2013-12-18)
This present work represents a case study conducted with different business units and corporate areas in a Brazilian branch of a multinational company (acknowledged by its innovative strength in multiple sectors: auto ...