Under the normal operating temperature of the diesel generator, the color of the exhaust smoke should be colorless or light gray. The so-called colorless is not completely colorless. It cannot be colorless like a gasoline generator but is accompanied by a touch of gray in the colorless, which is normal exhaust smoke color.
The exhaust smoke color of a diesel generator may be heavier at idle speed and may be heavier at high speed and high load. Only by observing the normal exhaust smoke color can we judge and analyze the abnormal exhaust smoke color.
After the diesel generator fuel is completely burned, the normal color is generally light gray, and it is dark gray when the load is slightly heavy. When the diesel generator is working, there will often be smoke. There are four types of smoke from diesel generators: black smoke, blue smoke, white smoke, and gray smoke. They are one of the conditions for determining the failure of a diesel generator.
1. Exhaust black smoke (soot)
The main reason for black smoke from diesel generator exhaust is that the fuel mixture is too thick, the formation of the combustible mixture is poor or the combustion is not perfect.
2. Exhaust blue smoke
Blue smoke from the exhaust is generally caused by the diesel generator being used for a long time and slowly starting to burn engine oil. With the increase of blue smoke and more and more engine oil burning, it is time to consider repairing the diesel generator.
3. Exhaust white smoke
White smoke means that the exhaust smoke is white, which is different from colorless. White is the white of water vapor, which means that the exhaust smoke contains water or unburned fuel components.
4. Exhaust smoke
The exhaust emits light gray smoke, and the diesel generator is still working normally, but it is not normal if the color of the smoke becomes gray or close to black. In addition to the above reasons for the black smoke exhaust, there may also be poor air intake, that is, insufficient air supply a good reason.
Through the judgment of the exhaust smoke color of the above-mentioned diesel generator, a preliminary investigation of the existing problems of the diesel generator is carried out. If you have any questions about the exhaust smoke of the diesel generator, please feel free to leave a message with us online to obtain more detailed information about the diesel generator!!