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Chemistry: Difference between Petrol and Diesel Engine in Tabular Form
Petrol Engine
- It used in cars, scooters, machines, etc.
- It is an internal combustion engine with spark ignition. ItΥs also known as gasoline engine.
- Air and fuel are generally mixed post-compression.
- In petrol engines, air and petrol are usually mixed in a carburetor before being introduced to the cylinder.
Diesel Engine
- Trucks, and other heavy vehicles run on diesel engines.
- It also an internal combustion engine that works on diesel.
- High temperature of the air in the cylinder is due to the adiabatic compression.
- These engines only compress the air and not the fuel.
Difference between Petrol and Diesel Engine
Petrol Engine | Diesel Engine |
---|---|
Engines work on the Diesel cycle | Work on Otto cycle |
High power production | Relatively low amounts of power are produced in Petrol engine |
High compression ratio | Relatively low compression ratio |
Ignition is achieved with help of hot, compressed air. | Fuel is ignited with an electric spark |
Fuel is mixed with air inside the cylinder | Air and the fuel are mixed in a carburettor |
It used in heavy vehicles such as trucks and buses | Used in light vehicles such as motorcycles and cars |
Low fuel consumption | High fuel consumption |