What is diesel emission control system?
What is diesel emission control system?
Diesel engine controls include: EGR control, intake boost pressure control, fuel injection timing control and combustion control. Aftertreatment system controls include: thermal management to ensure rapid warm-up and high emission reduction efficiency; and air/fuel ratio control to ensure maximum conversion of the TWC.
How do diesel engines control emissions?
In-engine measures to reduce emissions
- Fuel injection technology.
- Exhaust gas recirculation (EGR)
- Charge movement.
- Supercharging.
- Compression ratio.
- Diesel oxidation catalyst (DOC)
- Particulate reduction systems.
- NOx aftertreatment systems.
What are emission control systems?
Emission control system, in automobiles, means employed to limit the discharge of noxious gases from the internal-combustion engine and other components. The exhaust pipe discharges burned and unburned hydrocarbons, carbon monoxide, oxides of nitrogen and sulfur, and traces of various acids, alcohols, and phenols.
How are diesel emissions regulated?
How Are Diesel Emissions Regulated? All diesel engines for highway applications and some for off-road use are subject to the “tailpipe” emission regulations . These regulations specify the maximum amount of pollutants allowed in exhaust gasses from a diesel engine. The emissions are measured over an engine test cycle which is also specified in the regulations.
Why diesel engine is more costly than petrol engine?
Diesel engines generally cost more to maintain over petrol engines. Smaller diesel engines will cost more over all because there is no need to haul heavy loads, therefore any need to have a small vehicle with a diesel engine, unless you plan to keep it for years or it is a very recent model.
Why is petrol cannot be used in a diesel engine?
Diesel Engines use compression-ignition technology to burn fuel. That means the fuel is compressed till it burns. That requires a certain kind of fuel, which doesn’t burn irregularly when subjected to compression. Petrol does not fall in this category. Hence it isn’t used in diesel engines.
Do diesel engines pollute more than gasoline?
Simply, the answer is, no, diesel engines do not pollute more than petrol engines. In fact, they don’t even pollute as much as petrol engines. Gasoline engines pollute more than diesel engines.