The evaporator is a key component in many types of cooling and refrigeration systems. Its function is to remove heat from a system by vaporizing a working fluid. In most cases, the working fluid is water, but other fluids can be used as well. The evaporator is typically located inside the unit that it is cooling, such as a refrigerator or air conditioner.
It can cool a system without using any compressors or pumps. This means that the system can be much smaller and more energy-efficient than one that uses these other devices. Additionally, evaporators can be used to recycle waste heat from other processes and use it to cool the system. This can further improve the efficiency of the system.