Have you ever been curious about how does refrigerator works? Learn the principles of refrigeration, acquaint yourself with a refrigerator’s primary components, and discover what happens to refrigerant as it passes around the refrigerator system by watching the video or reading the article below.
What a refrigerator does?
To keep food fresh, the local surroundings must be kept at a low temperature to slow the multiplication of hazardous germs. A refrigerator transfers heat from inside to outside, which is why touching the back side of the fridge near the metal pipes feels warm.
How a refrigerator works?
Condenser (motor): It can be both an inverter and a linear system. Freon travels through the system’s tubes as the engine is launched, giving cooling to the cells.
A capacitor is a tube in the case’s back (the latest models can be placed on the side). The capacitor dissipates the heat that the compressor generates during operation. So the fridge doesn’t become too hot.
Manufacturers forbid placing equipment near batteries, radiators, or furnaces for this reason. Overheating will occur as a result, and the engine will quickly fail.
Vaporizer: The freon boils and becomes gaseous at this point. At the same time, a significant amount of heat is collected, and the tubes in the chamber, as well as the air in the compartment, are cooled.
A thermoregulation valve. Supports the refrigerant’s movement at the appropriate pressure.
A refrigerant is a gas such as freon or isobutane. It circulates throughout the system, helping to keep the cells cold.
Why does cooling take time?
Refrigerators, like everything else in our universe, must follow a fundamental physics principle known as energy conservation. The basic idea is that you can’t create energy out of thin air or make it vanish; you can only transform energy into different forms. This has significant ramifications for refrigerator users.
For one, it debunks the idea that leaving the refrigerator door open will keep your kitchen cool. That is not the case! As we’ve seen, a refrigerator works by using a cooling fluid to “sucke up” heat from the chiller cabinet, then pumping the fluid outside the cabinet to release the heat. So, if you remove a particular amount of heat from inside your fridge.
It should theoretically return as heat around the rear (in actuality, somewhat more heat is given out because the motor isn’t 100% efficient and emits heat). If you leave the door open, you’re merely transferring heat from one portion of your kitchen to another.
The law of conservation of energy also explains why cooling or freezing food in a refrigerator or freezer takes so long. Water, which is made up of very light molecules, is abundant in food (hydrogen and oxygen are two of the lightest atoms).
Even a little amount of water-based liquid (or food) includes many molecules, each of which requires energy to heat or chill. That’s why boiling even a cup or two of water takes a few minutes: there are many more molecules to heat than there would be if you were trying to boil molten iron or lead metal.
The same is true for cooling: removing heat from watery liquids like fruit juice or food takes energy and time. That is why it takes so long to freeze or cool food. It’s not that your fridge or freezer is inefficient; it’s just that changing the temperature of watery objects by more than a few degrees requires a substantial amount of energy to add or remove.