Air cooler Air cooler is abbreviated as air cooler. It uses air as the coolant and can be used as a cooler or a condenser. The air cooler is mainly composed of beams, brackets and fans. The hot fluid flows in the tube of the air cooler, and the air blows around the bundle. Since a large amount of heat exchange ventilation is required and the air pressure is not high, an axial fan (fluid machinery) is used.

The type and material of the bundle have a great influence on the performance of the air cooler. Due to the small heat transfer coefficient on the air side, pipes and fins are used to increase the heat transfer area and fluid turbulence and reduce thermal resistance. Most radial fins of air coolers. The outer diameter air cooler is usually used for 25mm light tubes, the fins are 12.5mm low fin tubes, and the fins are 16mm high fin tubes. The fins are usually made of high thermal conductivity material (the most commonly used is aluminum), wrapped or embedded in the lamp tube. For the heat transfer enhancement effect of the air cooler, water can be sprayed to humidify the air. This will not only reduce the air temperature, but also increase the heat transfer coefficient. Air coolers can save a lot of water, reduce environmental pollution, and reduce infrastructure costs. Especially in water-scarce areas, replacing water-cooling with air-cooling can alleviate the contradiction of water shortage.