dízelolajokat

Dízelolajokat, often referred to as diesel fuel, are a type of petroleum-derived fuel used in diesel engines. These engines operate on a compression-ignition principle, meaning that the fuel ignites spontaneously when compressed in the combustion chamber. Diesel fuel is composed of heavier hydrocarbon fractions than gasoline, resulting in a higher energy density and a slower burn rate. This characteristic makes it suitable for heavy-duty applications such as trucks, buses, trains, and many industrial machinery.

The production of diesel fuel involves refining crude oil through processes like distillation and cracking. The quality of diesel fuel is often measured by its cetane number, which indicates how readily the fuel ignites under compression. Higher cetane numbers generally lead to smoother engine operation and easier cold starts. Modern diesel fuels may also contain additives to improve performance, reduce emissions, and prevent issues like fuel system corrosion or filter plugging.

Environmental considerations have led to the development of lower-sulfur diesel fuels, a move aimed at reducing sulfur dioxide emissions, a major contributor to acid rain and respiratory problems. Biodiesel, a renewable fuel derived from vegetable oils or animal fats, can also be blended with or used as a substitute for conventional diesel fuel, offering a more sustainable alternative. The storage and handling of diesel fuel require attention to safety due to its flammability, although it is less volatile than gasoline.