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ABSTRACT
The Present scenario of Fuel Consumption is well known to everyone. Everyday
technical people talk about the depleting Fuel sources and Exhaust hazards.
Particularly about the Diesel engines find their importance more than the Petrol
engines due to their operating cost and Fuel consumption But Diesel engines have
their demerits in the area of Exhaust and Power loss. Necessary steps have to be
taken in order effectively use the Fuel available. We have brought the UTILIZATION
OF SIX STROKE ENGINES which runs on DUAL FUEL to your view. The Six
Stroke Engine’s Principle resembles the Double Stage Compressor. By this way
effective Compression is done and the need for Turbocharger is completely
neglected. We have also considered Cylinder’s position in Six Stroke engine. Also
the Pollution (NOx) emitted by the Diesel Engines is also taken into account. We
found the solution in the form of Dual fuel and Exhaust Gas Recirculation system.
The Combusting Temperature is above 2000 F and this is the prime reason for NOx
Emission. So an Alternative Fuel which can be combusted below the level of Diesel
should be used. Moreover the availability and production cost must be taken into
consideration. We found Ethanol as a better alternative for Diesel. The Cold Starting
of the Engine is made easier using GLOW PLUG which is used to preheat the
Charge coming inside the Combustion Chamber.
INTRODUCTION
In today’s world, the usage of Internal Combustion Engines is inevitable..Oxides of
Nitrogen (NOx) are formed when Temperatures in the Combustion Chamber get too
hot. At 2500 F, the Nitrogen and Oxygen in the Combustion Chamber can
chemically combine to form Nitrous Oxides, which, when combined with
Hydrocarbons (HCs) and the presence of Sunlight, produces harmful effects. In
order to reduce these effects, a Dual Fuel technique is implemented in which
ethanol is used as a Running Fuel which has less NOx emission than the
Conventional Diesel Engines.
In order to achieve such a High Compression Ratio , Efficiency. Six Stroke CI
engine is found to be more suitable. Starting of CI engines during cold weather
becomes severe when compared to the SI engines. The conventional method of
circulating hot water is being replaced by GLOW PLUG, thereby diesel consumption
during starting period is reduced considerably and quick starting is achieved
Exhaust Gas Recirculation (EGR)
This system also gets added up in the list so as to reduce the NOx effect. A simple
recirculation circuit dilutes the incoming charge in the inlet manifold thereby reducing
the combustion temperature to some 100 degree which optimally reduces the NOx
problem. We also had the idea of implementing Turbo charger, but usage of six
stroke engine and EGR eradicated that idea.