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Why Most People will Choose the Air-Cooled Generator?

Why Most People will Choose the Air-Cooled Generator?

As we all knew, there is two main range of diesel generator, one is air cooled and another is water cooled. However, what is difference bettween them and why most people will chose the water cooled, intead of air cooled diesel generator. We can briefly talk about it. The primary fuel for diesel engines is diesel. Light diesel oil is used in high-speed diesel engines. Heavy diesel oil is used in medium and low speed diesel engines, and heavy oil is used in large low speed diesel engines.
Firstly, Air-cooled ones use wind as the cooling medium, directly use wind to cool the diesel generators, and water-cooled ones use water as the cooling medium, and then use the radiator tank and electric fan to dissipate heat, both of which function to dissipate heat in the air There is not much difference in application, but air-cooling is suitable for plateaus or places that lack water or ice-cold, so you don’t have to consider the problems of adding water, boiling point, freezing, etc.; when water-cooling is used in plateaus, the boiling point of water drops, The place is briefly frozen during shutdown, and the boiling point and freezing point can be improved by adding a certain amount of additive. In addition, the heat transfer performance of water is better. In fact, there are basically no environmental constraints in the use of the two.
Secondly, the biggest advantages of air-cooled units are simple structure, good protection, low failure rate, good launch performance, less air required, easier shutdown, high thermal efficiency, low power consumption of electric fans, low fuel consumption, and no freezing or cracking. The risk of overheating boiling, but subject to thermal load and mechanical load constraints, the power is generally relatively small. The problem of the water cooling system accounts for more than the total failure share of diesel generator sets. Air-cooled units do better. The biggest advantage of the water-cooled generator is its high efficiency and fast cooling. At the same time, the power conversion rate of the body itself is improved.
Thirdly, the cylinder block and cylinder liner of the air-cooled engine are integrated or connected into a whole without gaps. The inside is the working area where the pistons slide, and the outside is densely packed with evenly and orderly heat sinks, which are generally die-casted with materials with high thermal conductivity. The working heat of the pistons is directly transmitted through the cylinder and taken away by the flowing air between the heat sinks. This method is generally used in two-stroke initiators; the cylinder of the water-cooled initiator is cast with a complex cooling water channel (dry liner), or forms a cooling water channel with the cylinder liner (wet cylinder liner), and the piston is in the cylinder liner During operation, the heat is transferred to the cooling water in the waterway through the cylinder liner for cooling. This method is generally used on four-stroke initiators. Air-cooled generators are generally of low power, and the heat generation is not high, and air cooling is enough; high-power generators need to be water-cooled because of the large heat generation.
The aboving all is the first part for our comparison of air cooled diesel generators and water cooled generators. Because of being limited by the airtical space and your focus time, we will discuss ther rest parts in the next one.