Lean Burn Spark Ignition Engine
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computer science crazy
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07-04-2009, 09:26 PM

The non renewable nature of petroleum products, its high cost together with high amount of atmospheric pollution caused by it has been a major concern in automobile industry. Thus the need to conserve this non renewable petrol and yet meet the needs of booming automobile industry led to the birth of a new advanced engine -Lean Burn Spark Ignition Engine. The ratio of air to fuel in a spark ignition engine is on average 14.7:1. With the diminishing oil reserves and tightened legislations, fuel consumption and exhaust emission of spark ignition engines is to be reduced. The efficiency of lean burn engines is high due to the usage of higher air fuel ratio. Lean burn engine can reach unburned hydrocarbon and carbon monoxide emission targets. The design features of lean burn engines can be improved with increased compression ratio, mixture swirl, mixture preparation, and improved ignition. As engine operates at leaner fuel levels, nitrogen emissions increase. Therefore, for lean burn engines to replace traditional fuel mixture engines, nitrogen oxide emission must be reduced. This can be done by catalyst or exhaust recirculation in the engine. However research continues to make lean burn engines ecologically viable.
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05-03-2012, 11:42 AM

to get information about the topic advanced Lean burn spark ignition engine full report ppt and related topic refer the link bellow


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20-08-2012, 09:22 PM

i want lean burn s.i. engine ppt,seminar and presentation report.can u send me? pls.send.:)
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19-09-2012, 04:01 PM

Spark Ignition ( SI ) Engine Control

.ppt   Spark Ignition.ppt (Size: 1,001.5 KB / Downloads: 53)


Spark Ignition ( SI ) Engine Control : Control of a SI engine for the best fuel efficiency, low emission and good drivability is a demanding control system problem.
Classical control techniques like PID control can’t provide the best performance over the entire operating envelop due to highly non-linear behavior of the engine.


To design and develop the Engine Management System (EMS) based on Neural Network based Fuzzy Logic Control (FLC) / Model Reference Control (MRC) techniques to improve the engine performance and reduce pollution.
To reduce the controller tuning time with minimal number of experiments


A low cost Microcontroller based Engine Management System (EMS) for a single cylinder Spark Ignition (SI), Port Fuel Injected (PFI) was designed and developed.
The control algorithms for Classical PID and Fuzzy Logic control techniques have developed and tested.
The closed loop performance shows improvement in terms Idle Speed, Fuel Consumption and Emissions.
Test will be conducted to evaluate the performance of the Model Reference Control algorithm over the conventional techniques.

Raja Maurya
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05-11-2012, 08:45 PM

please send me a report file on lean burn spark ignition engine..
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06-11-2012, 11:24 AM

to get information about the topic "Lean Burn Spark Ignition Engine" full report refer the link bellow


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