For many years, diesel generators have been the power generation solution of choice for commercial and industrial applications. Whether they are running to provide prime or standby power , these machines are known for their reliability, durability, and cost-effectiveness. One of the key components that allow these engines to function so well is their cooling system. Here’s some insight into how these systems work. Air-Cooled Diesel Generators Air-cooled systems are usually found in standby power and lower kW rated generators. These systems use fans to air drawn from the surrounding environment to cool the engine as it runs, blowing the air through the internal structure to draw heat away and prevent the system from overheating. These are very simple cooling systems, not requiring a radiator, coolant or pump system, which helps to keep maintenance to a minimum. The downside is that air-cooled diesel generators run fans that can add significantly to the noise factor.