what is the difference between petrol and diesel engine?
Answers
Answer:
The main difference between diesel and petrol engines is that petrol engines use spark plugs to ignite the air-fuel mixture, while diesel engines rely solely on heavily compressed air. ... In other words, more energy can be extracted out of the air-fuel mixture.
Answer:
Petrol Engine-
1. Petrol engines are internal combustion engines which have spark ignition. They run on relatively volatile fuels such as petrol.
2. In these engines, air and fuel are generally mixed post-compression.
3. Petrol engines work on the Otto cycle, which consists of two isochoric processes and two isentropic processes.
Diesel Engine-
1. The Diesel engine is also an internal combustion engine which is also known as the compression-ignition engine. It is named after Rudolf Diesel.
2. In these engines, the fuel is injected into a combustion chamber and is then ignited by the high temperature of the air in the chamber.
3. The high temperature of the air in the cylinder is due to the adiabatic compression. These engines only compress the air and not the fuel.