Comparison Between Petrol Engine And Diesel Engine Pdf

comparison between petrol engine and diesel engine pdf

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This mechanical energy moves pistons up and down inside cylinders.

No Petrol Engine Diesel Engine 1. The petrol engine works on Otto cycle i.

The diesel and petrol engines that are used in most cars are highly similar. In essence, they are internal combustion engines that work using a two or four-stroke cycle. In an internal combustion engine, the power cycle is made up of four phases: intake, compression, power and exhaust. In the intake phase, air is drawn into cylinder through the opening intake valve.

Difference between Petrol Engines and Diesel Engines

The classification of the petrol and diesel engine is done on the basis of the respective fuel used by these engines. The engine which uses petrol is called petrol engine while that uses diesel is called diesel engine.

Here will discuss all the major differences among these engines. An internal combustion engine that works on petrol fuel is called petrol engine. It works on the principle of the Otto cycle. In the petrol engine, a carburetor is used to make air petrol mixture that will enter into the cylinder.

The power obtained in the petrol engine is less as compared with the diesel engine. The air-fuel Petrol mixes with each other in the carburetor and it is sprayed into the cylinder through the inlet valve.

Since it works on Otto cycle so it has four-stroke suction, compression, power and exhaust stroke. At the end of the compression stroke spark plug at the head of the cylinder ignites the fuel and combustion starts.

This produces a very huge amount of thrust on the piston head and forces it downward. After that, the piston moves upward that forces the burnt gases out of the cylinder through the exhaust valve.

A Petrol engine may be of two stroke or four stroke type. But four stroke engine is most commonly used because of its better efficiency.

Note: Here we get power only in the power stroke and the rest of the strokes works from the power stored in the flywheel.

An internal combustion engine that works on diesel fuel is called diesel engine. It works on the principle of the Diesel cycle. In this engine, we have fuel injector for the injection of diesel into the cylinder. The air-fuel mixture is not prepared in diesel engines but the air and fuel enter into the cylinder separately. No spark plug is used in this for the combustion of diesel.

The heat of the air is used to ignite the diesel sprayed in the form of mist by the fuel injector. The power produced in a diesel engine is very high as compared with the petrol engine. The diesel engine is of four stroke type in which we have four strokes : Suction , compression, power and exhaust stroke.

Eg: car, jeep, motorcycle, scooters etc. They are used in heavy vehicles which require high power. Fuel consumption in a petrol engine is high. Fuel consumption in a diesel engine is less. Lighter in weight. Heavier in weight. Petrol engine requires frequent overhauling. Overhauling of a diesel engine is done after a long time. Lesser starting problem. Greater starting problem.

Lower initial cost. Higher initial cost. Lower maintenance cost. Higher maintenance cost. Pankaj Mishra is a blogger by passion and Mechanical Engineer by profession. He has completed his B. Tech degree in mechanical engineering in the year He loves to share his knowledge and help others.

People use more of petrol engines but the power developed is more and the consumption of fuel is also less in diesel engines. Your email address will not be published. Save my name, email, and website in this browser for the next time I comment. Skip to content.

Spread the love. Table of Contents. How Jet Engine Works? What is Mechanical Engineering? You May Also Like. What are the Best Cars for New Drivers? November 7, Pankaj Mishra 0. December 27, January 3, Pankaj Mishra 0. Reply Leave a Reply Cancel reply Your email address will not be published. The petrol engine works on Otto cycle i. The diesel engine works on diesel cycle i.

The air and petrol are mixed in the carburetor before they enter into the cylinder. The fuel is fed into the cylinder by a fuel injector and is mixed with hot compressed air inside the cylinder. The petrol engine compresses a mixture of air and petrol which is ignited by an electric spark. The diesel engine compresses only a charge of air and ignition is done by the heat of compression.

They are used in light vehicles which requires less power. Eg: bushes, trucks, locomotive etc.

Difference Between Petrol and Diesel Engine

The classification of the petrol and diesel engine is done on the basis of the respective fuel used by these engines. The engine which uses petrol is called petrol engine while that uses diesel is called diesel engine. Here will discuss all the major differences among these engines. An internal combustion engine that works on petrol fuel is called petrol engine. It works on the principle of the Otto cycle. In the petrol engine, a carburetor is used to make air petrol mixture that will enter into the cylinder. The power obtained in the petrol engine is less as compared with the diesel engine.

Skip to Main Content. A not-for-profit organization, IEEE is the world's largest technical professional organization dedicated to advancing technology for the benefit of humanity. Use of this web site signifies your agreement to the terms and conditions. Both have some advantages and disadvantages which according to the characteristics the functionality would be exploited. Combination of the two engines needs some considerations due to differences between, like size and shape of cylinders. So there are no mixed-fuel in this type at all.

Basic principles of the diesel engine

Diesel engine , any internal-combustion engine in which air is compressed to a sufficiently high temperature to ignite diesel fuel injected into the cylinder , where combustion and expansion actuate a piston. It converts the chemical energy stored in the fuel into mechanical energy , which can be used to power freight trucks, large tractors, locomotives, and marine vessels. A limited number of automobiles also are diesel-powered, as are some electric-power generator sets. The diesel engine is an intermittent-combustion piston-cylinder device.

One of the confusions prevailing among the car buyers is the difference between the petrol gasoline engine and the diesel engine. Perhaps the common knowledge or perception is that the diesel motors are noisier and their vibration is intolerable, whereas petrol motors run smoothly. Well this is not far from the truth though. But, with the modern engine technology, diesel engines are more competitive than before, so we have cars running efficiently, and we also have an increasing popularity and demand.

I am Amrit, and today I am going to discuss what are the differences between the petrol engine vs Diesel Engine. And how you can defer this in technical terms. So let me first tell you a little about Petrol and Diesel Engine. The full form of SI is Spark Ignition.

Diesel combustion

Она остановилась и снова начала вглядываться в глубь помещения Третьего узла. В полумраке ей удалось различить руку Хейла. Но она не была прижата к боку, как раньше, и его тело уже не опутывали веревки. Теперь рука была закинута за голову, следовательно, Хейл лежал на спине. Неужели высвободился. Однако тот не подавал никаких признаков жизни. Сьюзан перевела взгляд на помост перед кабинетом Стратмора и ведущую к нему лестницу.

Потом он подумал о вирусе, попавшем в ТРАНСТЕКСТ, о Дэвиде Беккере в Испании, о своих планах пристроить черный ход к Цифровой крепости. Он так много лгал, он так виноват. Стратмор знал, что это единственный способ избежать ответственности… единственный способ избежать позора. Он закрыл глаза и нажал на спусковой крючок. Сьюзан услышала глухой хлопок, когда уже спустилась на несколько пролетов .

Четвертая попытка тоже не дала результата.

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