Spark-ignited internal combustion engines have evolved considerably in recent years in response to increasingly stringent regulations for emissions and fuel economy. One new advanced engine strategy ustilizes high levels of exhaust gas recirculation (EGR) to reduce combustion temperatures, thereby increasing thermodynamic efficiency and reducing nitrogen oxide emissions. While this strategy can...

To control the exhaust gas recirculation (EGR) and the exhaust brake, the position of a butterfly valve connected to a piston inside a pneumatic cylinder is controlled by altering the pressure inside the cylinder. This thesis evaluates the possibility to do this with pulse width modulation (PWM) controlled On/Off valves. The whole electro-pneumatic actuator system is built out of two On/Off val...

Municipal mixed plastic waste (MMPW) recycling is an innovative way to turn environmental into energy fuels. In the present study, a thermochemical process was applied depolymerize MMPW produce hydrocarbon fuels known as plasto-oil. The obtained plasto-oil blended with conventional diesel test performance of PCCI-mode single-cylinder, four-stroke, direct-injection engine. PCCI combustion mixtur...

Constrained Nonlinear Predictive Control of Gasoline Low-Temperature Combustion — Combustion of a gasoline fuel with a high amount of recirculated exhaust gas is increasingly gaining interest. Such in part load conditions, a low combustion peak temperature can be achieved, which yields lowest emissions but suffers from instabilities of the process and a highly nonlinear behavior. These properti...

An experimental study is carried out to investigate engine performance parameters and methods of reducing emissions from spark ignition engine. The used engine is four stroke four cylinder naturally aspirated spark ignition engine with compression ratio of 9, bore diameter of 80 mm and stroke of 90 mm. The engine performance parameters are presented with and without exhaust gases recirculation ...

With the rapid technological progress of society and increasingly stringent environmental regulations, further reduction emissions has become an important issue for protection. This study developed a response surface model with biodiesel blending ratio (BBR), load, exhaust gas recirculation (EGR) as independent variables brake thermal efficiency (BTE), specific fuel consumption (BSFC), NO x , C...

This issue of the RPC workshop occurs in a particular historical moment which is characterized by a number of RPC systems already in data taking or in phase of advanced commissioning. In particular the startup of the Cern LHC, foreseen this year, will be a crucial test for the trigger and the time-of-flight RPC systems that have been developed for both trigger and time-of-flight by most of the ...