We present techniques of symbolic time-series analysis which are useful for analyzing temporal patterns in dynamic measurements of engine combustion variables. We focus primarily on techniques that characterize predictability and the occurrence of repeating temporal patterns. These methods can be applied to standard, cycle-resolved engine combustion measurements, such as IMEP and heat release. ...

Motor cortex stimulation has both excitatory and inhibitory effects on ipsilateral muscles. Excitatory effects can be assessed by ipsilateral motor-evoked potentials (iMEPs). Inhibitory effects include an interruption of ipsilateral voluntary muscle activity known as the silent period (iSP) and a reduction in corticospinal excitability evoked by conditioning stimulation of the contralateral mot...

Several approaches have been developed to measure instantaneous friction between the piston assembly and cylinder in internal combustion (IC) engines, such as floating-liner, reciprocating liner, mean effective pressure (IMEP), fixed sleeve, (P-?) method tribological bench tests. However, “floating-liner method” “(IMEP) are most common methods used IC engines. This paper critically evaluates di...

In this study, we investigated the effects of canola oil biodiesel (BD) to improve combustion and exhaust emissions in a common rail direct injection (DI) diesel engine using BD fuel blended with diesel. Experiments were conducted with BD blend amounts of 10%, 20%, and 30% on a volume basis under various engine speeds. As the BD blend ratio increased, the combustion pressure and indicated mean ...

In development of Homogeneous Charge Compression Ignition (HCCI) engines, simultaneous control of combustion phasing and power output has been a major challenge. In this study, a new strategy is developed to control the engine power output and combustion phasing at any desired operating condition. A single zone thermodynamic model coupled to a full kinetic mechanism of Primary Reference Fuels (...

This work shows the results of an experimental campaign carried out in two spark ignition engines, a small optical research engine and its commercial counterpart, using turbulent system (pre-chamber) specifically designed for engines. Advanced techniques conventional methods were used to study combustion process under various operating conditions. The pre-chamber operated actively passively eng...

Abbreviations: aBDC, after bottomdead center; aTDC, aft bottomdead center; bTDC, before top dead center; CA50, cra fraction reaches to 50%; CI, compression ignition; COVime indicated mean effective pressure; DI, direct injection; DIS DOI, duration of injection (first DOI1, second DOI2); EGR, homogenous charge compression ignition; IMEP, indicat injection ratio; MPRR, maximum pressure rise rate;...

Ethanol, produced from biomass, is a renewable fuel that can be an attractive alternative to gasoline for the increasing concerns of energy security and environment. In present work, combustion characteristics ethanol (E100) fueled spark-ignition engine are compared with base fuel, consecutively evaluated cycle-to-cycle variations (CCV) parameters using statistical analysis. These investigation...

since september 2010, a posturalacoustic lab has been taking shape at the iMep school of Music and Music education in namur, belgium. thanks to recent developments about the postural system in the field of neurophysiology , as well as to progress in information technology and robotics, it is now possible to provide Music students with a modern set of tools leading to the optimizing of an ergono...