A solid-state fan is a device used to produce an airflow with no

moving parts Machines include both fixed and moving parts. The moving parts have controlled and constrained motions. Moving parts are machine components excluding any moving fluids, such as fuel, coolant or hydraulic fluid. Moving parts also do not include ...

. Such a device may use the principle of electro-aerodynamic pumping, which is based on

corona discharge A corona discharge is an electrical discharge caused by the ionization of a fluid such as air surrounding a conductor carrying a high voltage. It represents a local region where the air (or other fluid) has undergone electrical breakdown ...

. It has advantages over mechanical fans such as that it is noiseless and more reliable.

References

Cooling technology {{tech-stub