Coolers are a type of heat exchange equipment used to cool fluids. Usually, water or air is used as a coolant to remove heat. It can be mainly divided into tubular coolers, plate coolers, and air-cooled coolers. Coolers are commonly used heat exchange devices in industrial sectors such as metallurgy, chemical engineering, energy, transportation, light industry, and food.

It is suitable for different working conditions such as cooling, condensation, heating, evaporation, and waste heat recovery. Therefore, among the numerous types of heat exchangers, coolers and tubular heat exchangers still occupy important positions.

Coolers are a type of heat exchange equipment used to cool fluids. Usually, water or air is used as a coolant to remove heat. There are wall mounted coolers, spray coolers, jacket coolers, and serpentine coolers. Widely used as pure water, water air, oil-water, and oil air cooling devices for high-power silicon rectifiers, induction furnaces, intermediate frequency furnaces, and other large electrical equipment as cooling protection accessories.

The cooler mainly focuses on inter wall, hybrid, and heat storage exchangers. The working principle, heat transfer calculation, structural calculation, flow resistance calculation, and design program of the cooler are illustrated and detailed in the book "Heat Exchanger".