Why is the use of diesel and petrol as fuel in automobiles being replaced by CNG?

This is done so because Diesel and petrol are high polluting fuel which affects the environment and air quality of the city and causes many respiratory diseases that’s why they are replaced by CNG as CNG is fully green fuel which don’t cause pollution.

What is better petrol or diesel?

Diesels deliver more power at lower engine revs than their petrol equivalent. This also helps to make diesel cars better suited for towing. Better fuel economy. Like for like, diesel cars give you better mpg than petrol ones.

Why should we use petrol and diesel?

Petrol and Diesel should be used judiciously as they are non-renewable finite resources of the world. As these are non-renewable resources of the world, the amount they have present on this planet is finite and therefore if not used in a judicious fashion would get depleted soon enough.

Why do some cars use petrol and others diesel?

The higher the compression ratio, the more energy is released. The more energy released, the greater the torque. So, simply, they use diesel in large vehicles rather than petrol because diesel has greater compressive resistance.

Which fuel is nowadays used in automobiles in place of petrol or diesel?

Propane. Propane is also known as liquefied petroleum. While it is used in some hybrid cars in Great Britain, it is only used in gas engine converted cars in the U.S. Some propane benefits: Less Pollution – Propane produces fewer toxic chemicals than gasoline and diesel and results in less smog and pollution.

Why is CNG replacing petrol as an automobile fuel?

Being a gaseous fuel, CNG mixes easily and evenly in air. CNG is less likely to ignite on hot surfaces, since it has a high auto-ignition temperature (540 °C), and a narrow range (5–15 percent) of flammability. CNG-powered vehicles are considered to be safer than petrol-powered vehicles.

Why is petrol a good fuel?

Petrol has a fantastically high energy density so that it is a really efficient energy to transport. Great for vehicles because a vehicle needs to carry its own fuel, so the greater energy you can get per kg, the better. Petrol is also very quick to release its energy.

Why is diesel used?

Diesel fuel is used for many tasks Diesel engines in trucks, trains, boats, and barges help transport nearly all products people consume. Diesel fuel is commonly used in public buses and school buses. Diesel fuel powers most of the farm and construction equipment in the United States.

Why only diesel is used in heavy vehicles?

High torque: Heavy vehicles are used to carry a high load like goods and passengers, hence these vehicles require high torque at low speed. Diesel engines can provide high torque than petrol engines hence diesel engines are preferred for heavy vehicles.

What are the advantages of diesel fuel?

As a transportation fuel, diesel fuel offers a wide range of performance, efficiency, and safety features. Diesel fuel also has a greater energy density than other liquid fuels, so it provides more useful energy per unit of volume.

Why is diesel fuel more viscous than petrol?

Due to the fact that diesel fuel is heavier due to its chemical composition, it is more viscous than petrol. The viscosity of diesel increases a lower temperature, thus making it susceptible to gelling and may hamper the operation of diesel engines at frigid weather. It also boils between 250 to 350 degrees Celsius.

Why does the military use diesel in tanks?

The U.S. military uses diesel fuel in tanks and trucks because diesel fuel is less flammable and less explosive than other fuels. Diesel engines are also less likely to stall than gasoline-fueled engines. Diesel fuel is also used in diesel engine generators to generate electricity.

What is the difference between diesel engine and petrol engine?

Also, there is no carburation is present in the diesel. At the end of the is present. When this spread diesel comes into contact with hot and compressed air, burning process of fuel begins and therefore the power stroke is obtained. On the other hand, petrol engine works on the Otto cycle.