Kathmandu. The demand for electric and hybrid cars is increasing worldwide. However, for performance seekers, petrol and diesel cars can be a good option. Diesel cars of various luxury companies are being sold widely. Especially when it comes to mileage, people often wonder what is the special reason why a diesel car is better than a petrol car?
In fact, there are many reasons why diesel cars give better mileage than petrol cars. These are related to the working style and design of the engine as well as the fuel structure. Diesel has more energy. The engine works under more pressure and the gear ratio is also different from petrol cars. For all these reasons, diesel cars are able to cover more distances with less fuel. In such a situation if you travel long distances and are worried about fuel consumption, then a diesel vehicle can be a good option for you.
##inline_tags_PLACEHOLDER_5#more energy in #डिजेल cars
Diesel has more energy than petrol. That is, if you burn diesel and petrol in the same amount, diesel will produce more heat and power. Diesel has a long chain of carbon molecules. As a result, its energy density is about 45.3 MJ/kg. The energy density of petrol is about 42.4 MJ÷kg. Diesel cars use less fuel to cover the same distance because they have more energy.
कारण know#
Diesel engines work on the principle of compression ignition. This means only the air is pulled into the cylinder. It is then compressed to a very high arc (usually between 15:1 and 23:1). Due to high pressure, the air temperature increases a lot. In such a situation, when a fine spray of diesel is added to this hot air, it immediately catches fire. Petrol engines work on the principle of spark ignition. In it. The mixture of air and gasoline is pulled into the cylinder, then compressed at low pressure (usually between 8:1 and 12:1). It is then ignited with the help of a spark plug.
कम More torque at RPM#
Compared to petrol engines, diesel engines produce more torque at lower RPM. Which puts less pressure on the engine and reduces fuel consumption. Diesel engines are good for driving at low speeds in cities and carrying heavy loads. Diesel cars often have a longer gear ratio than petrol cars. Which means that the diesel engine operates at a given speed at a lower RPS than the petrol engine.
तेलको structure is also important#inline_tags_PLACEHOLDER_7###
Diesel is an oily substance. It also helps to lubricate engine parts. This reduces friction and increases the engine’s capacity. Petrol acts as a detergent and can wash the oil from the parts of the engine, thereby increasing friction. For all these reasons, diesel cars usually give better mileage than petrol cars.
