For people who use diesel generator sets, sometimes the cost of purchasing the machine is far less than the subsequent use cost, especially the consumption of diesel. Therefore, fuel saving is the key to using a diesel generator set.
Based on the understanding of automobile engines, many people think that the fuel consumption of the unit must be proportional to the load, and the greater the load, the more fuel it will consume. Is this really the case?
Usually, the fuel consumption of the unit is generally related to two aspects. One is the fuel consumption rate of the unit itself, which usually cannot change more; the other is the size of the load. For the purpose of saving fuel, many people control the load within the standard range of the rated load, but the fuel consumption is still not ideal. Why?
In general, for diesel generator sets of the same brand and model, the fuel consumption will be greater when the load is large, and vice versa, the relative fuel consumption will be smaller when the load is small. This argument itself is valid. However, in special circumstances, it is another matter.
The actual situation is that the fuel consumption is the lowest at 80% load. If the load of the diesel generator set is 80% of the rated load, one liter of oil can generate 3.5 kWh of electricity; if the load increases, the fuel consumption will increase. This is what people often say that the fuel consumption of the diesel generator set is proportional to the load.
However, when the load is less than 20%, it will have an impact on the diesel generator set. Not only will the fuel consumption of the unit increase significantly, but it may even damage the generator set.
Therefore, the view that the fuel consumption of the diesel generator set is proportional to the load is not absolute. If you want to reduce the fuel consumption of the diesel generator set, you can let the unit run at about 80% of the rated load. Long-term low-load operation will increase fuel consumption and even damage the generator set.
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