there are 3 different types of diesel fuel here is the
explantion
Diesel fuel is derived from crude oil. It is a mixture of
hydrogen and carbon molecules. It is developed for engines that
provide energy for power, flow readily in cold temperature, provide
low emission, provide good fuel economy, and allow easy start-up.
Power generators are run by diesel fuel. The fuel also runs
diesel-powered vehicles, such as ships, buses, or trucks. Diesel
engines of these types of vehicles are internal combustion
engines.
Diesel is used in a high-compression engine. Air is compressed
until it is heated above the autoignition temperature of diesel.
Then the fuel is injected as a high pressure spray. There is no
ignition source. As a result, diesel is required to have a high
flash point and a low autoignition temperature. The flash-point of
a fuel is the lowest temperature at which it can form an ignitable
mix with air. The high flash point in diesel fuel means that it
does not burn as easily as gasoline, which is a safety factor. Too
low of a flash point is a fire hazard because ignition may continue
and lead to explosion.
Autoignition temperature is the temperature at which a substance
can be brought to flames without any sort of external force, such
as a flame or spark. There are three different types of diesel
fuel. These are Diesel No. 1, Diesel No. 2, and Diesel No. 4. The
ignition temperature of Diesel fuel No.1 ranges from 450 to 602
Kelvin, Diesel fuel No. 2 ranges from 527 to 558 Kelvin, and Diesel
fuel No .4 is 536 Kelvin.
Diesel is a petroleum-based fuel with a high energy content -
helping diesel go further per gallon than most other
Refiners reduced the sulfur content in diesel fuel by 97 percent.
This new, ultra-clean fuel is important because sulfur tends to
hamper exhaust-control devices in diesel engines, like lead once
impeded the catalytic converters on gasoline cars. Just as taking
the lead out of gasoline in the 1970s enabled a new generation of
emissions control technologies that have made gasoline vehicles
over 95 percent cleaner, so will removing the sulfur from diesel
help usher in a new generation of clean diesel technology.
Physio-chemical properties of diesel fuel
Autoignition Temperature (°C)
Diesel Fuel # 1 177-329
Diesel Fuel # 2 254-285
Diesel Fuel # 4 263
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