The object of research is gas-dynamic vortex processes in heterogeneous polydisperse flows. One the most problematic issues engine building completeness combustion and rate fuel burnout given coordinates on allotted hourly interval chamber. These indicators, turn, determine stringent requirements for used fuels terms thermophysical parameters that affect sawing, evaporation mixing with an oxidi...

The objective” of this proje& which is supported by the U.S. Department of Energy (DOE) through the National Renewable Energy Laboratory (NREL), is to provide a comprehensive comparison of heavy-duty urban transit buses operating on alternative fuels and diesel firel. Final reports from this project were produced in 1996 from data collection and evaluation of 111 transit buses from eight transi...

All conventional piston-driven combustion engines emit metal oxide particles. The main sources are the abrasion between piston-ring and cylinder, abrasion in the bearings, catalyst coating, lube-oil additives, and fuel additives for promoting the exhaust-gas after-treatment. Metal oxides, especially from transition metals, are very toxic when they are very fine. These particles have a high BET ...

homogenous charge compression ignition (hcci) engines hold promise of high fuel efficiency and low emission levels for future green vehicles. but in contrast to gasoline and diesel engines, hcci engines suffer from lack of having direct means to initiate combustion. a combustion timing controller with robust tracking performance is the key requirement to leverage hcci application in production ...

Vehicle Emission is one of the main causes of environmental damage. Vehicle engines produce carbon dioxide (CO2), hydrocarbon (HC), Nitrogen oxides (NOx) and many other harmful substances. An investigation was conducted using a compression-ignition engine fuelled with different ratios of blends of diesel and biodiesel at different EGR rates. The effects of different ratios of fuel blends and EG...

Studies on the exploration of alternate fuels obtained from renewable sources of energy to supplement conventional fossil fuels are being carried out throughout the world. The edible and non edible oils are being tried to either supplement or to replace diesel as fuel in CI engines. India is the net importer of edible oils and, therefore, emphasis is being laid to explore the possibility of usi...

In order to comply with stringent pollutant emissions regulations, a detailed analysis of the engine combustion and emission is required. In this field, computational tools like CFD and engine cycle simulation play a fundamental role. Therefore, the goal of the present work is to simulate a high speed DI diesel engine and study the combustion and major diesel engine emissions with more deta...

In this paper, the problems of diagnostics of main propulsion marine engines are presented. Diesel or turbine engines are used for main propulsion of vessel power plants. Marine engine is a complex technical object. For the purpose of diagnostics it is convenient to divide the engine into several units – subsystems such as: piston –crank assembly; working medium exchange system, fuel supply sys...

SYNOPSIS Internal combustion engines are being required to comply with increasingly stringent government exhaust emissions regulations. Compression ignition piston engines will continue to be used in cost-sensitive fuel applications such as in heavy-duty buses and trucks, power generation, locomotives, and off-highway applications, and will find application in hybrid electric vehicles. Close co...