Necessity and Replacement of Antifreeze for Diesel Generators in Summer

Antifreeze is an indispensable heat dissipation medium for the normal operation of diesel generator sets in winter. Firstly, it prevents the unit's water tank from freezing, avoiding cracking due to ice expansion in winter. Secondly, it cools the engine—when the engine is running, using antifreeze as a circulating cooling liquid has a significant cooling effect. So, is it necessary to use antifreeze to cool the unit in summer? And how effective is its cooling effect? Dingbo Power Generator Manufacturer will analyze the effect of using antifreeze in summer with you!

Under normal circumstances, if water is used instead of antifreeze for a long time, it will easily corrode the water tank and cause scale and other substances in the cooling system, reducing the heat dissipation effect. Therefore, many diesel generator set manufacturers recommend using antifreeze all year round. Specifically, there are the following key roles that determine the necessity of using antifreeze for diesel generators in summer:

1.Anti-boiling: It ensures that it does not boil prematurely under high temperatures. Generally, the boiling point of commonly used antifreeze is 104°C - 108°C, and when antifreeze is added to the cooling system and generates pressure, the boiling point will be even higher.

2.Anti-corrosion: Special antifreeze can reduce corrosion to the cooling system, thereby reducing the "water leakage" problem caused by rust in the cooling system.

3.Anti-rust: High-quality antifreeze can prevent rust in the cooling system. If the cooling system rusts, it will lead to accelerated wear and reduced heat conduction efficiency.

4.Anti-scaling: Since deionized water is used in the coolant, it can avoid the formation of scale and sediment, thus protecting the Shangchai generator set.

Through the above analysis, the effect of using antifreeze is much better than that of ordinary cooling water. Therefore, using antifreeze to cool diesel generator sets in summer is still a good cooling method. Therefore, the correct use of antifreeze is also an important task for our users. However, antifreeze does not need to be replaced all the time. What precautions are needed when replacing it?

Firstly, check that the cooling system has no leakage before adding antifreeze. Secondly, completely drain the cooling water in the cooling system to avoid residual water diluting the prepared coolant and changing the freezing point. Thirdly, antifreeze has a high boiling point and large heat capacity, so it should be noted that the engine cooling temperature when using antifreeze is about 10°C higher than when using softened water for cooling. Fourthly, the replacement of antifreeze must be carried out when the engine is cold, and all residual antifreeze in the cooling system must be completely drained. After cleaning with clean soft water, add it to the specified liquid level.

Dingbo Power was founded in 1974 and is one of the earliest manufacturers of generators and diesel generator sets in China. If you want get more information, please feel free to send email to [email protected] we will pay highly attention on your question.