Have you ever wondered how a fan works? Would you like to know how fans operate? Well, you’ve come to the right place! Here you will find all the information you need to easily and simply understand how fans work.

A fan is an electrical device designed to combat heat caused by low temperatures. Thanks to these devices maintaining a constant air flow, they can also be used to ventilate closed rooms.

Fans should not be confused with air conditioners, as the latter works by cooling the hot air, while fans only recirculate it at a higher speed. Similarly, it’s important to keep in mind that a fan is not the same as an extractor fan, even though they are quite similar, as extractors work in the opposite direction: they remove the hot air from a room and do not allow it to recirculate.

Parts that make up a fan

Before understanding how fans work, it’s important to know the parts that make them up:

• Blade: Also called fan blades, they can be made of plastic or metal and rotate clockwise to create an intense air current.
• Axis: A small part that connects the blades to the motor.
• Support: A casing that contains the fan’s axis and protects it with a cover.
• Coils: These are small metal spirals that store electrical energy in a magnetic field.
• Capacitor: Regulates the flow of electrical energy to the coil.
• Motor: Converts electricity into mechanical energy.
• Pullies: Transfer force from the motor to the axis, allowing the blades to rotate.
• Belt: Connects the motor to the pulley.
• Rotor: A thermoelectric resistant piece made of metal that holds the blades and transfers the energy stored in the coil.
• Switch: Turns the motor on and off, and also regulates the speed of the blades.

How a fan works

Fans operate in a simple way. When a fan is plugged into an electrical outlet and turned on via a switch, the current enters the fan’s ventilation system, passes through the coil and the rotor, and then, through the pullies, the current is converted into mechanical energy so that the blades move and generate an air current that provides a cooling sensation, either to relieve heat or to maintain ventilation in a space.

In summary, we could say that fans work by converting electrical energy into mechanical energy, which is why the blades rotate clockwise to provide fresh air. To stop the movement of the blades, you must press the off switch.

Types of fans

Currently, there is a wide variety of fan types and models on the market, each one designed for a different need. Knowing their characteristics is essential to choosing the right one.

Ceiling fans

As the name indicates, these are designed to be installed on the ceiling. Although their installation can be a bit complicated, they are the most recommended for small spaces or closed rooms that need to stay ventilated, as being fixed to the ceiling ensures a proper distribution of the air.

Pedestal fans

There are classic models and others that are more modern, including a remote control to turn them on, change their speed, or turn them off. These fans are usually quiet and lightweight. Due to their pedestal design, they are ideal for placing in living rooms, dining rooms, or bedrooms.

Floor fans

This model is similar to the pedestal fan, but its main difference is that it does not have any type of support or pedestal. They are generally high-powered and have high capacity, making them ideal for drying floors after cleaning them with water and soap, as they blow air at high speed.

Industrial fans

These are embedded fans that operate with three-phase electrical energy. These fans have powerful and durable motors and are capable of ventilating large closed spaces.

Energy consumption of a fan

The energy consumption of a fan will vary from one model to another, depending on the capacity and power of its motor, as well as the usage it gets. Compared to other electrical devices that operate similarly, fans have a low energy consumption.