Overall, two types of engines are generally found - diesel and gasoline engines. The classification is performed according to the fuel used for motors, due to the construction, the functionality and characteristics of the motors differ in the type of fuel to use. These engines can be found in cars, planes and even in commercial generators. Therefore, it would help to save a bit of time and have a look at the reason for the preference of one engine type to another.
Prerequisites
In order to have a deep understanding of the purpose of this article, with a passion for things under the hood would be helpful. But in any case, the material has been represented so that a person with little or no knowledge of mechanical engineering will also be able to follow; a little physical in your college or high school is enough. To start, we try to understand the working principle of the two types of engines, so that we can deduce the reason behind the popularity of one type over the other.
Principle of operation of diesel engines
A diesel engine is typically referred to as CI (compression ignition) engine. In a diesel engine, air is compressed by the piston within a closed chamber by a process called adiabatic compression. Because of the severe compression, the air temperature reaches very high levels inside the chamber. After reaching a sufficient temperature, the fuel, which in this case is the diesel is slowly injected into the chamber in a controlled manner.
When the flammable fuel comes into contact with hot air, it begins to burn. The gas produced from the combustion pushes the piston down, which in turn produces the required torque. Because of its construction, it has very low fuel remaining and excess heat is dissipated easily, which makes it very suitable engine for the long hours of maintenance-free operation under heavy loads. Among all types of internal combustion engines, diesel engines have the highest efficiency rate, sometimes more than 50%.
principle of petrol engines working
Gasoline engines, on the other hand, is an internal combustion engine with an operating principle quite different . Inside a gasoline engine, fuel and air are mixed in a chamber and compressed gradually. In addition, a spark plug is used to provide the necessary ignition point for the mixture, so that the whole process becomes fast and stable. Due to the presence of the spark plug, gasoline engines are widely used in cold climates where the temperature is very low and it is very difficult to maintain the temperature of the mixture suitable for combustion by compression.
Also, the speed of the gasoline engine is higher than and its parts are lighter than their diesel counterparts, making it the ideal choice for rapid acceleration and high-speed maneuvers. However, the air-fuel mixture compression ratio is quite low for a petrol engine and it results in a lower yield of gasoline engines compared to diesel engines.
What is the best choice?
Well, it depends on the nature of the use. Experts recommend gasoline engines for cases that require a very high speed and high acceleration. In addition, historically diesel engines are noisier than gasoline engines and people associate with unpleasant fumes from the exhaust. But the fact is that the carbon dioxide emitted by gasoline engines is higher than that of diesel engines
Diesel engines are a better choice because of many factors such as :.
diesel cost is lower than that of gasoline in most countries in the world.
Diesel engines last longer due to robust construction.
cost efficiency and maintenance is a major determining factor for the choice.
At low speeds, the diesel engine can generate very high power. This is the ideal case for commercial and industrial applications.
Because of all these reasons, it was also observed that the machines using diesel engines achieve a higher resale value. Surveys have shown that the diesel used cars and used diesel generators generate more requests at the establishment for resale. However, it is highly advisable to consult an expert in the field to determine what to buy for your engine condition.
[ad_2]Source by Ritam Dalui
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