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How to Correctly Use Diesel Generator Under Extreme Conditions

Oct. 15, 2019

Due to environmental factors, the operation of diesel generator under the conditions of the high altitude area and the extremely cold climate must adopt corresponding measures. Only in this way can make the diesel generator better care in the process of using or maintaining. The following useful tips will show you how to correctly use diesel generator under extreme conditions. Please continue reading.


diesel generator set

When using the matching diesel engine of the genset manufacturer in the plateau area, especially for the use of the naturally aspirated engine in the plateau area, due to the thin air can’t burn a lot of fuel, which will cause power loss. For the naturally aspirated engine, the power loss will be about 3% if the elevation rises by 300m. Therefore, when working on the plateau, it is suggested to use lower power diesel genset to prevent smoking and the excessive fuel consumption.

In the use of the extreme cold weather, it should be increased with auxiliary starting devices such as fuel heater, oil heater, and jacket water heater and so on. By using the fuel oil heater or electric heater, the cooling water, fuel oil and lubricating oil of the cold engine are heated, which makes the whole engine warm up so that it can start smoothly. When the machine room temperature is not less than 4°C, the installation of coolant heater can maintain the temperature of the engine cylinder block above 32°C. In addition, it is recommended to install low temperature alarm of generating set.


For the diesel generators that operate at ambient temperature below -18°C, the lubricating oil heater, fuel passage and fuel filter heater are also needed to prevent fuel curing. It is worth noting that the oil heater is installed on the engine oil pan, which heats the oil in the oil pan that is convenient for the diesel engine to start at low temperature. It is recommended to use -10#~-35#light diesel oil. The inlet air preheater is used to heat the mixture (or air) that enter into the cylinder so as to increase the compression terminal temperature and improve the ignition condition. The electric heating preheating method is to install electric heater plug or a heating wire in the inlet air pipe to directly heat the intake air. It does not consume the oxygen in the air, nor does it pollute the intake air, but it consumes the battery energy.

In addition, it is recommended to use low temperature lubricating oil that can reduce the viscosity of lubricating oil, improve the fluidity of lubricating oil and reduce the internal friction resistance of liquid. Using high energy batteries, such as the current nickel metal hydride batteries and nickel cadmium batteries, and pay attention to the battery heating or heating insulation. If the machine room temperature drops below 0°C, it should be equipped with battery heater to maintain the battery capacity and output power.

Kindly reminder:

For the different purposes and models of the diesel engines, due to its low temperature starting performance requirement is different, the low temperature starting measures are also different. For such type of engine -the low temperature starting performance requirement is high, to ensure it can start successfully at low temperature, it is necessary to adopt a variety of measures. By installing electric heater plug, it can provide thermal energy for the engine starting performance in cold conditions. The electric heater plug mainly uses proper primer fluid to improve the mixture concentration aether so as to help the engine boot up smoothly under the condition of dirty and dust environment.

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