Water cools the engine. Air cooling is also not necessary. The difference between air cooled generators and water cooled generators: the cooling fluid is different: air cooled generators use wind as cooling fluid, directly use wind to cool diesel generator, water cooled generators use water as the cooling medium, then through the radiator water tank and electric fan heat dissipation. Both functions dissipate heat from the air and there is not much difference in application. The only difference is that air-cooled generators are suitable for plateaus or places where water is scarce or cold, so water, boiling point and water can be ignored. . The boiling point of water decreases when used on a water-cooled tray and it freezes brieflywhen stopped in a cold place. Adding a certain amount of additives can increase the boiling point and freezing point, and the heat transfer performance of water is better. In fact, their application is essentially done without environmental constraints. Advantages: The biggest advantages of air-cooled unit are simple structure, easy protection, low failure rate, good starting performance, less air volume required, easier shutdown, thermal efficiency high, low power consumption of the electric fan, low fuel consumption, no frost cracks or risk of overheating and boiling. However, due to thermal and mechanical loads, the power is generally low. The problem with water-cooled systems is that diesel generators account for more than half of total outages. LAir-cooled units do better. The biggest advantages of water-cooled generators are high efficiency, rapid cooling and improved power conversion rate.
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The difference between water-cooled engine generators and air-cooled generators
Our most common air generator -cooled engine It is a motorcycle engine. It does not have a circulating water cooling system and relies on the radiator outside the cylinder liner to dissipate heat! A water-cooled engine has a water jacket outside the cylinder liner, which uses the circulating water to cool the cylinder liner! I would compare it with a motorcycle engine, it's more intuitive!
The main difference between water-cooled engine generators and air-cooled engine generators is that the engines are different and that the generators are fundamentally the same. The difference between water cooled and air cooled engines is:
1. Water-cooled engines use water as a medium to dissipate heat. Single-cylinder diesel engines rely on self-flowing water. Tank to dissipate heat. Multi-cylinder diesel engines have a heat dissipation water tank and a cooling fan composed of a heater fan.
2. The air-cooled diesel engine dissipates heat by relying on airflow. It is molded into a tooth shape on the outside of the motor body to increase the air contact area and uses the airflow as heat. dissipation medium for dissipating heat. Most air-cooled diesel engines are single-cylinder diesel engines. For example, the engine dissipation of a motorcycle is an air-cooled engine, which depends on the speedesse of the wind generated when walking.