In the context of modern engine control, one important variable is the individual Air Fuel Ratio (AFR) which is a good representation of the produced torque. It results from various inputs such as injected quantities, boost pressure, and the exhaust gas recirculation (EGR) rate. Further, for forthcoming HCCI engines and regeneration filters (Particulate filters, DeNOx), even slight AFR unbalanc...

Water electrolyzed hydroxyl gas (HHO or Brown gas) and compressed natural (CNG) are the important promising alternatives to pure fossil fuels. The global concern is about GHG emission in environment ambient air pollution steered by mass consumption of fuels automobile industries power sectors. In this study, combustion, performance characteristics HHO CNG mixtures supplied intake manifold compr...

Under conditions of lean fueling or high exhaust gas recirculation, interactions between residual cylinder gas and freshly injected fuel and air produce undesirable combustion instabilities in spark-ignition engines. The resulting dynamics can be described as noisy bifurcations of a nonlinear map and are complicated by cylinder-to-cylinder coupling. We discuss the key dynamic features relevant ...

The combined cycle plants (CCGT) in 2019 are upswing due to definitive closure of conventional coal-fired power plants. increase the price a ton CO2, will close 25 euros 2019, could allow their capacity factor above 50%. Already achieved high flexibility imposed by regulator Spanish network, REE, possible hybridizations both gas turbine (GT) and heat recovery steam generator (HRGS), it is neces...

HighFrequency Individual CylinderEstimation forControl ofDiesel Engines—Increasingly stringent pollution regulations have spurred a broad interest in the reduction of engine emissions. Two strategies can be considered: after-treatment or engine emissions reduction. For Diesel engines, after-treatment has a high cost induced by the required technology and implementation issues. In this context, ...

The primary aim of this study is to alternate between conventional fossil fuels and reduce the emissions greenhouse gases sulphur dioxide from diesel engine. In current study, in order mitigate NOx emissions, EGR technique was implemented utilizing hybrid biodiesel at three varying proportions 5%, 10% 15% an optimum compression ratio 20:1. findings demonstrate that for a alternative 20:1 fully ...

New fuel technologies, such as electrofuels, are an attractive alternative to meet the energy demand and emission regulations, with sustainable electricity being primary source of energy. Recently, there is increasing interest in using polyoxymethylene dimethyl ether (OME) a diesel substitute. This study investigated effect blend 20% OME (OME20) 3–5 oxymethylene groups, on performance, combusti...

In the current study, a 0D/1D engine model built in commercial code GT-Suite was coupled with Electronic Control Unit (ECU) created Simulink environment, aiming to more accurately predict interaction of and aftertreatment system (ATS) operating parameters, both during steady-state transient maneuvers. After detailed validation based on extensive experimental data from heavy-duty diesel Internal...