How does the solar system control the diesel load rate and improve the fuel economy of diesel generators?

Regarding the fuel economy and optimal load power of a 100kW diesel generator, typically, the fuel efficiency improves as the load increases until it reaches an optimal point. This optimal load is generally between 70% and 80% of the rated power. Therefore, for a 100kW diesel generator, the best fuel economy is usually achieved when the load is in the range of 70kW to 80kW.

Why is this the case?

1.Low load efficiency is low: At low loads (such as below 20%), the diesel generator may run at lower speeds, which leads to incomplete combustion and poor fuel efficiency.
2.Medium load has higher fuel efficiency: When the load is between 60%-80%, the engine operates at an optimal temperature and load, which results in more complete combustion, better fuel efficiency, and lower fuel consumption.
3.High load decreases efficiency: When the load exceeds the rated power, the generator operates in overload mode, causing higher fuel consumption and potential overheating. Prolonged operation under these conditions can also damage the machine.
Theoretical Formula
Fuel consumption of a diesel generator is generally proportional to the load power, but different models from different manufacturers may vary slightly. The fuel consumption can be approximated using the following formula:
Fuel Consumption=Rated Power×(Fuel Consumption Rate)×(Load Percentage100)\text{Fuel Consumption} = \text{Rated Power} \times \left( \text{Fuel Consumption Rate} \right) \times \left( \frac{\text{Load Percentage}}{100} \right)Fuel Consumption=Rated Power×(Fuel Consumption Rate)×(100Load Percentage​)
Where:
1.Rated Power is the generator's maximum output power (e.g., 100kW).
2.Fuel Consumption Rate is typically the fuel consumption per kWh (in units of L/kWh).
3.Load Percentage is the ratio of the actual load to the rated power (for example, 70% would be 0.7).
Example:
Assuming a 100kW diesel generator has a fuel consumption rate of 0.25 L/kWh at a 70% load, the fuel consumption would be:
Fuel Consumption=100 kW×0.25 L/kWh×70100=17.5 L/h\text{Fuel Consumption} = 100 \, \text{kW} \times 0.25 \, \text{L/kWh} \times \frac{70}{100} = 17.5 \, \text{L/h}Fuel Consumption=100kW×0.25L/kWh×10070​=17.5L/h
If the load is at 90%, the fuel consumption would increase to:
Fuel Consumption=100 kW×0.25 L/kWh×90100=22.5 L/h\text{Fuel Consumption} = 100 \, \text{kW} \times 0.25 \, \text{L/kWh} \times \frac{90}{100} = 22.5 \, \text{L/h}Fuel Consumption=100kW×0.25L/kWh×10090​=22.5L/h
Conclusion:
For a 100kW diesel generator, the optimal fuel economy is typically achieved when the load is between 70% and 80% of its rated power. This is when the engine operates most efficiently, resulting in lower fuel consumption. For more specific information or to adjust according to particular needs, it’s helpful to refer to the generator’s technical manual.

Our inverter system is equipped with intelligent load control functionality, allowing it to automatically adjust the load distribution when the diesel generator (DG) operates at lower loads, ensuring that the DG always runs at its optimal fuel efficiency range. Specifically, when the DG load drops to 40%, the inverter intelligently diverts 30% of the excess energy to charge the battery, thereby optimizing the load on the generator and keeping it within the 70%-80% efficiency range. This not only reduces fuel consumption but also extends the life of the generator.

Product Features:

1.Intelligent Load Management: The inverter continuously monitors the load of the diesel generator and automatically adjusts the power output to ensure that the generator operates within its high-efficiency load range.
2.Optimized Fuel Efficiency: By intelligently charging the battery with excess energy when the load is low, the system reduces fuel consumption and enhances operational efficiency.
3.Extended Equipment Lifespan: Prevents the generator from running at low loads for extended periods, reducing wear and tear and fuel consumption, which helps to prolong the generator's lifespan.
4.Improved Operational Stability: The inverter adjusts the load to maintain the generator's operation within a reasonable range, ensuring stable and efficient performance under all working conditions.

Promotional Copy:

"Efficient fuel management, saving fuel and being environmentally friendly — With our inverter, you can ensure that your diesel generator operates at its optimal fuel efficiency range. Regardless of how low the load is, our inverter keeps the generator within the 70%-80% load range, significantly reducing fuel consumption and lowering operational costs. Choose our inverter and step into a new era of intelligent energy-saving!"
This functionality not only demonstrates exceptional performance in saving fuel but also optimizes the overall system efficiency through intelligent adjustments, ensuring users can enjoy greater economic benefits during long-term operation.