Which heat transfer does the refrigerator use?

Question

Which one: conduction, convection or radiation.

if u can, plz explain. if not dont worry just tell me which heat transfer mode does the refrigerator use

Answer 1

I would say it is mostly convection.  Air moving across the condenser coils carries heat away from the refrigerant (convection), cooling it down after it is compressed.  Then when it expands, heat is removed from the cooling coils, and cools the air in contact with the coils which is then carried by convection to the rest of the refrigerator.

However, there is some radiation cooling from the condenser coils since they are usually warmer than their surroundings.  And the air that convects the heat away from the coils is itself heated by conduction.  But unless convection carries it away, heat transfer will cease.  Similarly the air next to the cooling cools is cooled by conduction, but is carried away from the coils by convection.  Without convection the refrigerator would not work.

Answer 2

A combination of conduction and convection.

Conduction is the transfer of heat between to materials in direct contact, while convection diffusion of hot particles in a fluid.  The convection keeps the temperature difference high, causing the conduction to be more effective.  

If you need a single answer, use conduction.

Answer 3

Firstly conduction from the hot gas to the radiator. And from the radiator to the air. Then convection, as the air is warmed.

But there's radiation also, from the radiator into the air. That's all neglecting the addition of a fan, of course. With a fan, it all becomes predominantly conduction.

All 3?