Home » Fans Cooling: AC Vs DC

Fans Cooling: AC Vs DC

2021-09-30 hqt

How to Achieve Fans Cooling with Operating Efficiency?

When temperatures swelter, then not having the comfort of air-conditioning leaves us nothing but with the option of fans. Fans cooling has always been meant to dissipate heat and create an atmosphere of cool under the ceiling. Whether we talk about a roof fan, bathroom exhaust fan, or axial cooling fan, the purpose is to achieve cool air.

These fans use little energy but provide effective ventilation. Fans perform better in some types of heat as compared to others. They are extremely beneficial in heatwaves, particularly when you understand the kind of heat you are bracing. The way they keep the inside environment cool is that fans blow cold air across our skin. We lose heat through a process called convection as the sweat evaporates faster. Today’s technology favors products that feature low power consumption besides reducing high heat generation.

fans cooling

How To Save Energy?

You can save money and energy to ventilate your home instead of using an air conditioner, except in extreme heat. Moving air removes heat from the rooms by creating a wind-chill effect that keeps your body cool. If we talk about Axial cooling fans, for instance, these fans ensure effective cooling with their multi-blade impeller designs. That’s how they improve airflow performance.

Fans cooling combined with energy conservation measures offers other benefits besides cooling. Heat accumulates in homes due to several reasons and increases indoor temperatures. Applications, such as lighting and cooking along with occupants result in heat generation as well. For better ventilation instead of air conditioning for cooling, some preventive measures include the installation of axial duct fans, for instance.

Axial fans are highly energy efficient. They generate a significant amount of air movement and consume less energy than other fans. In addition to supplying fresh air, they are responsible for exhausting hot air out, etc.

There are circular centrifugal fans that are capable of generating relatively high pressures. As compared to axial fans, centrifugal fans operate in high-pressure HVAC and home ventilation applications. They are robust, offer excellent ventilation in addition to offering high-pressure airflow for cooling in industrial furnaces. In addition, these fans have extensive use as domestic extractor fans for bathrooms and kitchens.

Fans Cooling and Types of Motors: AC vs DC

There are two types of motors in fans; AC motors or DC motors.

AC or Alternating Current is a kind of electric current that reverses direction. These motors function via direct connection to a power source. AC reverses direction 50 times a second. AC at any voltage converts to other voltage through the use of highly efficient transfer. Also, AC motors regulate speeds by controlling the speed of the electric current because they connect directly to the supplied wiring.

DC or Direct Current motors integrate a transformer that flows in one direction and never reverses. In DC-type motors, the direct power source (AC) connects to a transformer and changes the electric power into DC. Resultantly, the amount of power required decreases because the DC motor only uses a direct current and not an alternating one. In DC motors, a system of magnets with opposite polarity creates the force required to rotate the motor’s rotor.

Advantages with AC Fans Cooling

Most fans use AC motors because residential properties use AC power because of its easy supply and cost-effectiveness. It produces and maintains easily. A fan having an AC motor comes with a variety of controls including the remote control.

  • One simply needs to plug them in the power switch and that is it.
  • AC fans are considerably cheaper.
  • In AC fans, the customers have 3 – speed and 4 – speed options.
  • AC fans are much reliable. Their zero vibration indicates the perfection of the product’s manufacturing.
  • If anyone wants truly inexpensive energy-efficient performance, AC fans are the best.
  • Axial duct fans, for instance, are noisy. The users can simply control their noise by changing their control systems.

Advantages with DC Fans Cooling

  • The use of DC motors in fans addresses the need for energy-efficient products that are less power-consuming. However, since DC motors are technologically advanced, the cost of DC fans is higher than AC fans.
  • DC motors can control six speeds settings. DC motors are comparatively much easier to start, stop, and even accelerate. They have higher torque, which means low energy consumptions but higher initial power.
  • A circular centrifugal duct fan, for instance, improves indoor airflow by 154 CFMdue to its excellent RPM.
  • Fans that integrate DC motors incorporate all the electrical components positioned in one place at the top of the motor assembly. As a result, the users won’t need a switch cup.
  • DC fans are, in general, much quieter than AC fans. They offer an excellent solution to ventilation issues. If anyone wants a non-noisy and highly energy-efficient performance, DC fans are the best. That is why places where people live or work, for instance, residences, hospitals, gyms, offices use such silent duct fans.
  • The DC motor fans are amazingly lightweight. It is generally easy to install them.
  • DC Axial cooling fans ensure effective cooling due to their innovative multi-blade impeller designs.
  • DC fans are generally compact and light in weight because of the DC motor. They do offer a reverse function on the remote.
  • The compact and lightweight features of DC motors allow the manufacturers to produce a fan with a sleek motor design.
fans cooling


AC motor fans cooling system has a low power consumption rate. The significant aspect of these fans is zero vibration and minimal noise. They are much cheaper than the DC fans. On the other hand, DC fans are an excellent option for HVAC ventilation. Being highly energy efficient, they consume 70% less power than AC fans. However, these fans are expensive.

Though both the fans make their users feel comfortable, there is no black and white answer to which is the best? If you like an extremely efficient lightweight fan, go for a DC fan. They are typically faster in responding. An AC fan is a good option for outdoor spaces where noise is usually not an issue.