Diesel generator is a
diesel engine that drives the generator to convert the energy of the diesel
into electrical energy. The gasoline generator is a gasoline engine that drives
the generator to convert the energy of the gasoline into electrical energy. The
following is a detailed introduction to the difference between the two.
Working
principle of diesel generator
In the cylinder of the
diesel engine, the clean air filtered by the air filter is fully mixed with the
high pressure atomized diesel fuel injected from the injector. Under the upward
extrusion of the piston, the volume is reduced and the temperature is rapidly
increased to reach the ignition point of the diesel. The diesel is ignited, the
mixed gas burns violently, the volume expands rapidly, and the piston is pushed
down, which is called work. Each cylinder performs work in a certain order, and
the thrust acting on the piston passes through the connecting rod to become a
force that pushes the crankshaft to rotate, thereby driving the crankshaft to
rotate.
Working
principle of gasoline generator
In the cylinder of the
gasoline engine, the mixed gas burns violently, and the volume expands rapidly
pushing the piston to work downward. Each cylinder performs work in a certain
order, and the thrust acting on the piston passes through the connecting rod to
become a force that pushes the crankshaft to rotate, thereby driving the
crankshaft to rotate. By installing the brushless synchronous alternator
coaxially with the gasoline engine crankshaft, the rotor of the generator can
be driven by the rotation of the gasoline engine. By using the principle of "electromagnetic
induction", the generator will output an induced electromotive force, and
a current can be generated through the closed load circuit. .
It can be seen from the
above that in the diesel engine, the mixture is compressed into heat, and the
mixing of fuel and air in the cylinder of the gasoline engine is marked with a
spark plug; diesel is less volatile than gasoline, and has a larger gallon per
gallon. The calorific value, that is, 5dm3 diesel can obtain more power than
5dm3 gasoline; in the diesel engine, the mixture of diesel and air is carried
out after the diesel is injected into the cylinder, while in the gasoline
engine, the fuel and air are in the carburetor and the intake Mixed in the
pipeline. Since the mixing must be immediately after the fuel eruption, the
diesel generator needs to have a specially planned combustion chamber to
facilitate the mixing of diesel and air. Therefore, the planning and production
of the combustion chamber is very important for diesel generators.
The
difference between diesel generator sets and gasoline generator sets
The difference between a
diesel generator set and a gasoline generator set is mainly due to the
different performance of its diesel engine and gasoline engine.
1.
The type of fuel
Diesel is a fuel that is
less volatile than gasoline, and has a large calorific value per liter of
diesel.
2.
The type of ignition
In the cylinder of a
gasoline engine, a mixture of fuel and air is ignited with a spark plug. In a
diesel engine, the mixture is ignited by the heat generated by compression.
3.
Mixing of fuel and air.
In a gasoline engine,
fuel and air are mixed in a carburetor and an intake duct. In a diesel engine,
the mixing of fuel and air is performed after the diesel is drawn into the
cylinder.
4. The output power of a
diesel generator is much larger than the output power of a gasoline generator
set. The average power of a typical gasoline generator set is only 10KW, while
the minimum power of a diesel generator set is 8KW.
5.
Gasoline generator sets are small in size.
The movement is
convenient, and the diesel generator set is bulky and inconvenient to move.
What
are the advantages of diesel generator sets compared to gasoline generator
sets?
There are many models in
the generator set, and the power is different. Most of the large and
medium-sized generator sets are fueled by diesel. The generators with smaller
power are generally fueled by gasoline. So what are the advantages of a diesel
generator set with a diesel engine and a gasoline generator with a gasoline
engine as a generator power source?
1.
Fuel consumption
The diesel engine has
high thermal efficiency, low fuel consumption rate, and the fuel pump rate
curve changes relatively flat when the working conditions change, which is very
important for diesel engines that often work under partial load.
2.
Reliable and durable work
Since there is no
ignition system the diesel engine, the fault is relatively small and the work
reliability is high.
3. Wide range of use
4. Lees harmful
emissions
5. Good fire safety
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