The condenser on a refrigerator removes heat from a gas coolant and condenses it into high-pressure liquid. Coolant evaporates at low temperatures and low pressure but condenses at high temperature and high pressure; because of this, heat can be transferred from inside the refrigerator to the room. The coolant is contained in a closed system, so the process can be repeated.Know More
The principles of refrigeration are as follows: liquids absorb heat when they are changed to a gas, and gas gives off heat when it is changed to liquid. The refrigerant enters the compressor as a low-pressure gas, where it is compressed and exits as a high-pressure gas. This gas flows to the condenser, where it is condensed to a liquid, and its heat escapes into the surrounding air.
The pressurized liquid then moves to an expansion valve, which limits the flow of the fluid and reduces the pressure of the gas as it exits the expansion valve. The low-pressure gas is then piped into the evaporator and absorbs heat, which changes it from a liquid to a gas.
As a hot gas, the refrigerant then moves to the compressor, where the cycle is repeated. The low-pressure gas is turned into a high-pressure gas and then condensed to a liquid, and so on.Learn more about Refrigerators & Freezers
The cooling process in a refrigerator is accomplished through a cooling agent known as a refrigerant, which circulates through the refrigerator via a series of coils. There, it changes between two forms: liquid and gas. As the refrigerant evaporates, it absorbs the heat, which is then released into the external environment, thus cooling off the air contained in the refrigerator.Full Answer >
A refrigerator water dispenser works by pressing a small, paddle-shaped piece that acts as a lever for a switch inside the refrigerator door. The paddle-shaped lever is used to turn a valve located in the back of the refrigerator, which is connected to tubes that lead to a water supply.Full Answer >
Vapour compression is the principle by which 12-volt refrigeration systems work. The process requires a liquid refrigerant to change its state to a gas and then back to liquid inside of a series of sealed pipes. This change absorbs energy in the form of heat.Full Answer >
A refrigerator relay, or start relay, jump-starts the refrigerator's compressor. Without the relay, no electrical charge is delivered to the compressor and the refrigerator does not cool. Relays usually make a loud clicking noise when they are in need of repair or replacement.Full Answer >