Results 111 to 120 of about 11,226 (218)

Simulação numérica de um modelo simplificado de um motor à combustão interna a gás natural [PDF]

open access: yes, 2007
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia Mecânica.O gás natural é um dos combustíveis presentes na matriz energética brasileira que possui o potencial de redução na ...
Bertoldi, Dalton
core  

Experimental studies of CAI combustion in a four-stroke GDI engine with an air-assisted injector

open access: yes, 2007
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.CAI combustion and the factors affecting it were intensively investigated in a single cylinder, air-assisted gasoline direct injection engine.
Brouzos, Nikolaos P
core  

A multi-zone model of the CFR engine : investigating cascading autoignition and octane rating

open access: yes, 2011
Includes abstract.Includes bibliographical references (p. 103-109).The CFR engine is the standardised research engine used for the measurement of knock resistance of fuels through the Research Octane Number (RON) and Motor Octane Number(MON) tests.
Perumal, Marlan
core  

Domestic electronic ignition on spark ignition engines

open access: yes, 1998
Se presenta la modificación del sistema de encendido convencional por ruptor, adaptado y construido a partir de los sistemas de encendido inductivo Bosch y Delco Remy; obteniéndose el sistema de encendido electrónico. Las pruebas experimentales se efectuaron en el motor Ford de cuatro cilindros ubicado en la Universidad Nacional de Ingeniería ...
Valderrama Romero, Andrés   +1 more
openaire   +1 more source

Optical Investigation of Sparks to Improve Ignition Simulation Models in Spark-Ignition Engines

open access: yesEnergies
The use of renewable fuels in place of fossil fuels in internal combustion engines is regarded as a viable method for achieving zero-impact-emission powertrains. However, to achieve the best performance with these fuels, these engines require further optimization, which is achieved through new combustion strategies and the use of advanced ignition ...
Saraschandran Kottakalam   +3 more
openaire   +2 more sources

The Effect of Spark Timing on the Spark Ignition

open access: yesTikrit Journal of Engineering Sciences, 2013
 In this work the effect of spark timing on the spark ignition engines is investigated by computer simulation and experimental test for speeds of (1500,2000,2500,3000 and 3500)rpm at spark timing of (20o,30o,40o,50o and 60o) before TDC for each speed ...
Rafeq A. Khalefa
doaj  

Combustion characteristics and in-cylinder process of CAI combustion with alcohol fuels

open access: yes, 2010
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.Controlled auto-ignition (CAI) combustion in the gasoline engine has been extensively studied in the last several years due to its potential for ...
Tongroon, Manida
core  

Emission Characteristics of a CI Engine Running with a Range of Biodiesel Feedstocks

open access: yes, 2014
Currently, alternative fuels are being investigated in detail for application in compression ignition (CI) engines resulting in exciting potential opportunities to increase energy security and reduce gas emissions.
Gu, Fengshou   +7 more
core   +1 more source

Experiment on the Rate of Blow-by in a Spark Ignition Engine

open access: yesJournal of the Society of Mechanical Engineers, 1959
The phenomenon of blow-by in internal combustion engines has an important effect upon engine performance, the lubrication of cylinder wall, the oxidation of engine oil, and the bearing temperature, causing deterioration in the durability of the engine.
openaire   +3 more sources

An investigation into the influence of autoignition chemistry and charge cooling under 'Beyond RON' operating conditions on the improved knock resistance of ethanol over iso-octane

open access: yes, 2013
The growing interest in alcohol fuels has led to the finding that benefits in terms of efficiency and power compared to traditional petrols can be gained due to the improved knock resistance of alcohols.
Bock, Bradley
core  

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