Cooling System in Refrigerators

Static & Fan Cooling

There are three types of cooling technologies can be implemented in refrigerators:

  • Static
  • Ventilated (or No Frost)
  • Dynamic (or fan-assisted)
Static is the classic refrigeration technology before the others. It does not have any ventilation and the air circulates freely within. This results in uneven temperature throughout the environment in the fridge as cold air is heavier and tends to stay at lower part of the fridge. However, these refrigerators are less electricity-consuming, works silently and is the cheapest amongst the other refrigeration technology.

Contrary to static cold refrigerator, ventilated or No Frost refrigerator has ventilator that allows the air to circulate and keep an even temperature inside the entire refrigerator. The purpose is to cool products quicker and avoid the formation of moisture, which helps keep food three times longer than with a static cold technology. This system prevents bacterial growth.

Refrigerators that utilize dynamic cooling system have ventilation system and they are assisted with built-in fans. The air circulates with the help of a ventilator placed on the back side of the device. Compare to the other refrigerator technologies, dynamic cooling system is the most capable of keeping huge volume of content within cool. However, the downside would be it the cost and energy consumption. In addition, odours of different food products may mix within the fridge if are not packed safely.


  1. Static has the least capable of keeping food fresh but is the least electricity consuming, most silent and is the cheapest.
  2. Ventilated is more capable of keeping food product fresh and prevent bacterial growth in a degree.
  3. Dynamic  have both fans and ventilation system, specialized in cooling its interior environment swiftly despite its huge volume. However, it might not be as quiet and is electricity consuming.