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What is a diesel generator set?

What is a diesel generator set?

Diesel generator sets generate a lot of heat during operation. This heat is mainly generated when the diesel inside the diesel engine burns. Of course, part of it is caused by mechanical movement and the electric heating effect inside the generator. In order to ensure the normal operation of the unit, the heat needs to be taken away and dissipated.
The commonly used method is to use a flowing medium-water or air. Water cooling and air cooling appeared. Since water has a larger heat capacity than air, the cooling effect of water as a medium is better than air. In a cooling system that uses water as a medium, in order to allow water to flow, a water pump needs to be added to the cooling water system.
For large power plants, in order to prevent the scale of cooling water in the cooling cavity of the unit from affecting the cooling effect, certain chemicals need to be added to the water. This water must circulate in a closed system, and no discharge is allowed. The temperature of the cooling water will also rise. In order to cool the cooling water, it is necessary to build a cooling tower to cool the cooling water. On the generator sets of large ships, sea water is used to cool the cooling water. (Due to the strong corrosiveness of seawater to metals, seawater cannot be used to directly cool the unit, so as to avoid seawater corrosion to the unit)
Compared with air-cooled units, the cooling effect of water-cooled generator sets is better, but the cooling system is huge and complicated. Suitable for high-power, fixed-workplace units.
The air-cooled system is suitable for low-power, mobile units.