Cooled exhaust gas recirculation is emerging as a promising technology to address the increasing demand for fuel economy without compromising performance in turbocharged spark injection engines. The objectives of this study are to quantify the increase in knock resistance and to decrease the enrichment and emission at high load. For this purpose four stroke turbo charged Spark Ignition engine (...

Abstract This study aims to assess the performance of compression ignition (CI) engine powered with various biodiesels. The used for this test was a single-cylinder, water-cooled, naturally aspirated, CI engine. biodiesels in were neem methyl ester (NME), mahua (MME), cottonseed (CME), tamanu (TME) and Albizia saman (AME). According results, TME-operated had 2.69%, 10.53%, 6.31% 5.49% higher br...

To examine the effects of using synthetic Fischer-Tropsch (FT) diesel fuel in a modern compression ignition engine, experiments were conducted on a MY 2002 Cummins 5.9 L diesel engine outfitted with high pressure, common rail fuel injection, a variable geometry turbo charger, cooled EGR and a fully configurable engine management computer. Additionally, the effect of varied injection timing and ...

in this study, a numerical simulation using the cfd software, fluent, has been conducted to examine the effect of various shapes of the venturi component sections in order to find the optimum venturi specifications to increase the egr rate with minimum pressure loss at the part load operation range. the cfd results reveal that the venturi should be precisely optimized to introduce the required ...

Abstract This work evaluated the effect of cooled exhaust gas recirculation (EGR) on fuel consumption and pollutant emissions from a diesel engine fueled with B8 (a blend biodiesel no. 8:92% by volume), experimentally numerically. Experiments were carried out power generator varying loads 5 kW to 35 10% cold EGR ratio. Exhaust (e.g., total hydrocarbons (THCs), nitrogen oxides (NOx), carbon mono...

Under transient conditions, the emission of turbocharged diesel engine will deteriorate to a certain extent, and adoption EGR is also factor leading increase some pollutants. For this reason, high pressure common rail inter-cooled heavy duty was used study influence closed-loop control method on performance under typical conditions with constant speed torque increasing in 5s. The results show: ...

Increasingly restrictive emission regulations and renewed focus on energy efficiency drive the current researches to find alternative fuels and their related better combustion strategies. In this regard, dual fuel engines, in which natural gas fuel is used as a main fuel and diesel fuel is employed as a pilot fuel, have received considerable attention. However, poor fuel utilization efficiencie...

Cooled exhaust gas recirculation (EGR) is a very effective method to reduce nitrogen oxide emissions of diesel engines. However, due to particulate matter and other components present in diesel exhaust gas, EGR coolers are highly prone to fouling. As different soot deposition mechanisms are acting inside the coolers, various model cooler experiments were performed to clarify their contribution ...