Low Power Engines
Mostrando 1-10 de 10 artigos, teses e dissertações.
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1. DESIGN OF ELECTRONIC CONTROL GOVERNOR FOR A SINGLE CYLINDER GASOLINE ENGINE BASED ON AN INTELLIGENT SENSING ALGORITHM
ABSTRACT At present, most large machinery and vehicle engines are electronically controlled but their electronic control systems are too expensive to be popularised and applied in small gasoline engines with relatively low prices. Therefore, small gasoline engines still use mechanical speed regulators. Mechanical speed regulators not only have the defects of
Eng. Agríc.. Publicado em: 2020-08
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2. Instrumentação de dinanômetro de rolos portátil / Instrumentation of a portable roll dynamometer
Este trabalho aborda a instrumentação de um dinamômetro de rolos portátil para teste de veículos de baixíssima potência (até 100 W). A instrumentação objetiva medir valores de torque e velocidade angular para o cálculo da potência gerada pelo motor em teste. Primeiramente, os valores de força, torque, velocidade angular e potência são especifi
Publicado em: 2010
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3. TRANSIENT MODELLING OF INDUSTRIAL GAS TURBINE FOR POWER GENERATION / MODELAGEM DO REGIME TRANSITÓRIO DE TURBINAS A GÁS INDUSTRIAIS PARA A GERAÇÃO DE ENERGIA ELÉTRICA
Gas turbine engines are a vital part of today¿s industry, providing both work and heat for several industry sectors, from transportation to cogeneration systems. The growing need for reliable electricity has encouraged the design of stationary gas turbines, including in Brazil, which operates on multiple fuels such as diesel, natural gas and low calorific f
Publicado em: 2010
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4. Uso do óleo vegetal em motor estacionário de ciclo diesel / Vegetable oil use in stationary engine of diesel cycle
In terms of liquid biofuels, the questions related to alcohol are in a developed level with the creation of a productive chain where all the processes are technologically decided since the production of the sugar cane until the alcohol consumption with the development of the multifuel cars. As for the use of vegetable oils, some barriers must be overcome, ma
Publicado em: 2008
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5. Use of a biofuel obtained from the fast pyrolysis of sugarcane trash in an Otto engine / Uso de biocombustivel da pirolise rapida da palha de cana em um motor de ciclo Otto
In September 2002 the state of São Paulo promulgated the Law Nº 11241 by which was codified the gradual elimination of fire as a method to remove trash from the sugar-cane fields before harvestig. Large amounts of sugar-cane trash with an important energy potential will be available as a result of this law. New technologies to harvest and process this biom
Publicado em: 2007
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6. EXPERIMENTAL INVESTIGATION AND PERFORMANCE ESTIMATE OF DIESEL ENGINES BURNING NATURAL GAS / AVALIAÇÃO EXPERIMENTAL E PREVISÃO DO DESEMPENHO DE MOTORES DIESEL CONSUMINDO GÁS NATURAL
Four Diesel engines, all running on the Diesel / natural gas dual fuel mode, were dynamometer tested. Engines were selected based on their distinct construction, operating parameters and engine field use. The Diesel / natural gas substitution was varied in order to determine the dual fuel operation limits. Measurements related to particulate emissions (smoke
Publicado em: 2006
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7. Tração eletrica como alternativa energetica : uma proposta para a conversão de veiculos automotivos de uso urbano / Electrical traction as an energetic alternative: a proposal for the conversion of urban automotive vehicles
The objective of the dissertation is to present a low cost system for the utilization of electric propulsion in urban vehicles powered with internal combustion engines, ft will be discussed semiconductor devices parallelism techniques for high demands of power, electric engines, batteries, and re-charge- systems. In a general way. the project has as objectiv
Publicado em: 2006
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8. CONTROLADOR NEBULOSO PARA MOTOR DE IGNIÇÃO POR COMPRESSÃO OPERANDO COM GÁS NATURAL E ÓLEO DIESEL
A foreseeable shortage of petroleum, associated to a growing ecological conscience, demand for alternative sources of energy and more efficient and less pollutant combustion processes. Among the few pollutant fuels this work approaches the combination of natural gas, whose consumption has been increasing year to year, and diesel. It is known that the interna
Publicado em: 2006
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9. Effects of wet CO oxidation on the operation of engines and power generators
A simplified method is used to determine the optimum water content in the flue gases of charcoal gasifiers to be utilized as alternative fuels in the operation of engines and gas turbines for power generation. Computational models of plug flow reactors and well stirred reactors are employed to simulate the reaction and post-flame zones, adopting different ch
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2003-12
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10. van't Hoff-van der Waals osmotic pressure and energy transformers
We find the van't Hoff relations between osmotic pressure, freezing point depression, and boiling point elevation provide a clue on how, by using salt solutions, one may lower the cost of extracting power from low-grade heat sources. In particular, the ratio of 7 between the heat of evaporation and the heat of freezing of pure water suggests a chemical syste