Table of Contents
- 1 What are the types of engines?
- 2 Which engine is more powerful?
- 3 Why diesel engine has more power?
- 4 Which car is faster diesel or petrol?
- 5 Which cycle is used in compression ignition engines?
- 6 What is the working cycle of SI engine?
- 7 How are SI and CI engine fuels rated?
- 8 Which car is good petrol or diesel?
- 9 Which has higher calorific value petrol or diesel?
What are the types of engines?
The diesel engine (also known as a compression-ignition or CI engine), named after Rudolf Diesel, is an internal combustion engine in which ignition of the fuel is caused by the elevated temperature of the air in the cylinder due to the mechanical compression (adiabatic compression).
Which engine is more powerful?
Petrol engine will have higher power than diesel engine because it can run at much higher RPM and as power is directly proportional to the RPM hence, petrol engine will produce more power, although diesel engine has more Torque, but it will not produce same amount of power as petrol engine, as it has low RPM.
Why diesel engine has more power?
The longer the stroke in the combustion cycle, the higher the torque output of the engine is. … Well, with a long stroke, the piston going back down in the powerstroke allows diesel engines to produce more torque. Compression Ignition: Diesel engines unlike petrol engines, do not use a spark plug to ignite the fuel.
Which car is faster diesel or petrol?
Diesel engines are generally heavier than their petrol counterparts making them slower. The compression ratio of diesel engines is much higher than petrol engines since the flash point (temperature at which it catches fire) of diesel is higher than petrol.
Which cycle is used in compression ignition engines?
The diesel is an internal combustion reciprocating engine which operates in the compression ignition cycle.
What is the working cycle of SI engine?
1) Four-stroke engine: In the four-stroke engine the cycle of operations of the engine are completed in four strokes of the piston inside the cylinder. The four strokes of the 4-stroke engine are: suction of fuel, compression of fuel, expansion or power stroke, and exhaust stroke.
How are SI and CI engine fuels rated?
The rating of fuels is done by defining two parameters called Octane number and Cetane number for gasoline and diesel oil respectively. The rating of Spark-Ignition (SI) engine fuels and rating of Compressed-Ignition (CI) engine fuels are discussed in this article.
Which car is good petrol or diesel?
The mileage of the diesel engine is more than that of a Petrol engine. A diesel engine does not need a spark plug and thus has higher compression. This makes the diesel engine utilise more fuel as compared to a petrol engine.
Which has higher calorific value petrol or diesel?
The calorific value of diesel fuel is roughly 45.5 MJ/kg (megajoules per kilogram), slightly lower than petrol which is 45.8 MJ/kg. However, diesel fuel is denser than petrol and contains about 15% more energy by volume (roughly 36.9 MJ/litre compared to 33.7 MJ/litre).