Nowadays, most food stores, supermarkets and even households will have their own freezer in order to store food. So have you ever wonder how a freezer works or how it’s made ? Well, if your answer is yes then wasting no time, let dive into article to find those knowledge.

Principle of freezer operation

The freezer has an insulated chamber and a heat pump system to provide a temperatures below -18 degrees Celsius . At this low condition, bacteria will stop functioning, helping food retain its quality over long period.  memorina

Freezers operate on the principle of compressing refrigerant gas from gas to liquid and releasing heat. The air compressor compresses the refrigerant under high pressure to change the gas into a liquid state. 

Through the condenser, the heat will be radiated to the environment. Under reduced pressure conditions, liquid gas will turn into gas and absorb heat in the evaporator to create a circulation cycle.

Since you have learned how a freezer operates , Now we could move on to the answer you have waiting for.

What is the Structure of a freezer?

Freezer is actually not a complicated machines, yet, there are surely not many people know its structure. Therefore, it’s a good idea to learn about its various components in order to understand more about how they work together.

Hot and cold units

The outdoor and cooling units are indispensable and extremely important parts in the freezer.

  • The outdoor unit is the part that helps release heat from the gas when liquefied. After liquefaction, the refrigerant gas will go from the air compressor to the outdoor unit. 
  • The indoor unit has the function of evaporating refrigerant gas, cooling the space inside the refrigerator. 

Freezer compressor

The compressor has the function of compressing refrigerant gas under high pressure to change it into a liquid state. The process produces heat that is radiated to the environment through the outdoor unit. The compressor sucks refrigerant from the copper evaporator, compresses the refrigerant from gas to liquid, generates heat and pushes it into the condenser.  

Insulation system, insulation, door

The insulation system and cabinet door are two parts that help keep heat in the cabinet compartment, limiting loss to the outside.

  • Thermal insulation system minimizes heat exchange inside and outside the freezer. Usually the insulation is made of glass wool and polyurethane.
  • The door has an insulating gasket system that limits heat exchange around the cabinet door.  

Cold gas

Refrigerant gas is a circulating medium used in the refrigeration system to circulate temperatures in different locations. Refrigerant gas can absorb heat when evaporating at low pressure and at high pressure can release heat when liquefied.

In addition, each type of refrigerant gas has different points in terms of evaporation temperature and condensation pressure. Therefore, it will affect the engine performance and freezer cooling performance.

Utilities included

  • The temperature control panel helps users adjust the freezer temperature easily to suit their needs.
  • Safety lock protects the freezer to ensure against loss of food and frozen items, keeping children safe.
  • Drain holes make cleaning the freezer easy and quick, helping to increase the lifespan of the freezer.
  • Moving wheels support the process of changing the location of the freezer easily and conveniently.
  • Separate storage baskets in the freezer help preserve foods separately.
  • Freezers used to display goods have different types such as glass freezers using curved glass doors, sliding glass doors, etc.

Above are the most detailed shares about the structure and operating principles of the freezer. Hopefully, through this knowledge, customers will better understand the products to use. 

---------------------------------------------------------------------------------------------------------------------

SANAKY VIETNAM., CO LTD - Manufacturer of Chest Freezer - Upright Cooler, Transformer, RO Water Purifier...

☎ Hotline: (+84) 986 123 903

Email: henry@sanaky-vn.com 

Website: www.sanaky-vn.com