Recently, studies have been carried out using environmentally sustainable technologies with more efficient energy conversion to fulfill emission requirements. One of these technologies, reactivity controlled compression ignition (RCCI), is a low-temperature combustion mode and has dual fuel strategy. The controllability combustion, high thermal efficiency low nitrogen oxide (NOx) soot emissions...

Here, a large-eddy simulation and finite-rate chemistry solver (see Kahila et al. Combustion Flame, 2019) is utilized to investigate diesel spray assisted ignition of lean methane-air mixture. A compression heating model emulate the ambient temperature pressure increase in (CI) system. The key parameter start injection (SOI) relative virtual top dead center (TDC), where peak adiabatic pressure/...

This paper presents a new predictive second order sliding controller (PSSC) formulation for setpoint tracking of constrained linear systems. The PSSC scheme is developed by combining the concepts of model predictive control (MPC) and second order discrete sliding mode control. In order to guarantee the feasibility of the PSSC during setpoint changes, a virtual reference variable is added to the...

In this numerical study, the effects of premixed ratio, intake manifold pressure and air temperature on a four-cylinder, four-stroke, direct injection, low-compression-ratio gasoline engine, operated in reactivity-controlled compression ignition (RCCI) combustion mode at constant engine speed 1000 rpm, were investigated using Converge CFD software. The results analyses showed that maximum in-cy...

CI engines are widely used in stationary as well as mobile applications. Stationary applications include typical gen-set, etc. and mobile applications include heavy automobiles, forestry equipments, etc. as well as other applications in day-to-day life. Since the turbulence is necessary for better mixing and the fact that it can be controlled by shape of the combustion chamber, makes this revie...

The use of natural gas (NG) in dual-fuel heavy-duty engines has the potential to reduce pollutant and greenhouse (GHG) emissions from transport sector when compared conventional diesel engines. However, NG composition methane slip are interest because both can adversely affect benefits as an alternative fuel, especially considering GHG emissions. Therefore, this study experimentally investigate...

Increasing complexity of both scientific simulations and high performance computing system architectures are driving the need for adaptive workflows, in which the composition and execution of computational and data manipulation steps dynamically depend on the evolutionary state of the simulation itself. Consider for example, the frequency of data storage. Critical phases of the simulation shoul...

The normal specifications of motor gasolines as well as their combustion characteristics in internal combustion engines are reviewed in this paper. The effective factors influencing the fuel performance, such as the molecular structure of the fuel constituents, the operating conditions and the atmospheric pressure and temperature are also discussed. A relationship between the optimum octane num...