Table of Contents
What happens in evaporator of refrigeration cycle?
As refrigerant travels through the evaporator, it absorbs heat from the air. As it absorbs heat, it vaporizes. If the system operates according to design, the refrigerant will be 100% vapor as it nears the exit of the evaporator. Before leaving the evaporator, the vapor continues absorbing heat, becoming superheated.
What is the function of an evaporator in the system?
An evaporator is a device used in a process to turn the liquid form of a chemical substance, such as water, into its gaseous form – vapor. The liquid is evaporated, or vaporized, into a gas form of the targeted substance in that process.
How does an evaporator coil work?
How Does it Work? The evaporator coil is full of evaporated refrigerant that the compressor pumps to the metering device as a liquid then into the evaporator. The air that is pushed through the coil from the blower fan will move over the coil where the refrigerant in the evaporator will absorb the heat.
What is the purpose of a refrigerator evaporator?
The evaporator is located inside a refrigerator and is the part that makes the items in the refrigerator cold. As the refrigerant turns from a liquid into a gas through evaporation, it cools the area around it, producing the proper environment for storing food.
Where does the refrigerant flow into after leaving the evaporator?
As it leaves the compressor, the refrigerant is a hot vapor, roughly 120° to 140°F. It now flows into the outdoor coil, (known as the condenser).
Where does the refrigerant go when it leaves the evaporator?
The refrigerant boils in the evaporator at a constant low pressure and temperature. Heat is removed from the fluid being cooled. After leaving the evaporator, the vaporized refrigerant flows through the compressor.
What is the function of evaporator & condenser in Vapour compression refrigeration cycle?
The Four Components The evaporator and condenser are both a series of coils that are designed to create more surface area for the refrigerant to react with. Meanwhile, the compressor and expansion valve are mechanical units that control the amount of pressure and temperature change that occurs between the two stages.
How does a condenser and evaporator work?
While the evaporator coil picks up heat from indoor air, the condenser coil releases heat into outdoor air. An expansion valve before the evaporator restricts the flow of refrigerant, forcing it through a narrow orifice and converting it back to a vaporized state, ready to absorb more heat energy from your home.
Where is the evaporator in a refrigerator?
The evaporator coils sit in the back of the freezer compartment of a refrigerator and look like a radiator. The back wall of the freezer is actually the cover of the evaporator coil and can easily be opened with a screwdriver.
Do all refrigerators have an evaporator?
The majority of residential refrigerators have their evaporators located against the back walls of their freezers. These evaporators consist of coils, which absorb heat, and fans, which circulate the resulting cool air.
What is the state of the refrigerant leaving the evaporator of a refrigeration cycle?
The refrigerant leaves the evaporator as a warm, saturated low pressure gas.