What is the function of evaporator?
What is the function of evaporator?
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.
What is the function of evaporator in air conditioning system?
The evaporator works the opposite of the condenser, here refrigerant liquid is converted to gas, absorbing heat from the air in the compartment. When the liquid refrigerant reaches the evaporator its pressure has been reduced, dissipating its heat content and making it much cooler than the fan air flowing around it.
How does the evaporator remove latent heat in the air?
The liquid refrigerant in the evaporator absorbs its latent heat of vaporization, and in the process changes from a liquid to a vapor. The gas refrigerant within the condenser rejects its latent heat of vaporization, thus changing from a gas to a liquid.
What is the work of evaporator in refrigerator?
The basic function of an evaporator in the refrigerator system is to remove the heat from the water, air, and other substances present in the refrigerator. The evaporators of refrigerator systems act as a heat exchanger which helps in transferring the heat from the substance and make it cool.
What are the two functions of the evaporator?
An evaporator is a device used to cool air. It is part of a cooling system found in freezers, refrigerators and air conditioners. Evaporators are responsible for the cool air that comes out of the vents. The evaporator’s cooling mechanism uses heat to do the job.
What is the function of evaporator in chiller?
The evaporator functions as a heat exchanger such that heat captured by the process coolant flow transfers to the refrigerant. As the heat-transfer takes place, the refrigerant evaporates, changing from a low-pressure liquid into vapor, while the temperature of the process coolant reduces.
How does the evaporator work in an air conditioner?
The evaporator allows the refrigerant (the cooling fluid inside the coil pipe) to evaporate and absorb heat in your house. This sends cool air back to your home. The external unit is the place where the heat from inside your house is dispersed out. The heat absorbed from your house by the refrigerant is pumped to the external unit.
Where is the evaporator located in a refrigerator?
Open refrigerator and freezer. The evaporator is responsible for the air that cools your house, car and business and flows through our refrigerators and freezers. Evaporators are the last link in the cooling system chain, and its location is usually on the inside while the other parts are on the outside.
Where are the evaporator and condenser coils located?
The evaporator coil is either attached to the furnace or located inside the air handler. The air handler is the box that houses the blower fan. The evaporator and condenser coils are both essential to the cooling cycle. Each handles a different side of the process. You might think of it as your favorite basketball team playing offense and defense.
What causes condensation to freeze on an evaporator coil?
Without adequate airflow blowing over the evaporator coil, the condensation on the coil will freeze because there isn’t enough heat to be absorbed. Clogged Air Filter – Air filters are designed to filter out the dust and debris from the air as it passes through your system.
What does an evaporator coil do in an AC unit?
What is an evaporator coil? The evaporator coil of your air conditioner is one of the primary components in the heat exchange process, which allows your system to heat and cool your home. As your AC unit pulls in the warm air from your home, it passes this air over the evaporator coils.
Where does the cold air in an evaporator come from?
That is, it’s where the cold air comes from. The evaporator coil is located inside or near the air handler where the blower fan is. Evaporator coils are made from copper, steel, or aluminum because these metals conduct heat easily. Most residential AC evaporators consist of tubes bent into U-shapes and set into panels.
How does the expansion valve in an AC evaporator work?
The expansion valve plays a very important role, as it reduces the pressure of the refrigerant. During this process the liquid is cooled, which allows it to absorb the heat and thus cool the air. The blower fan draws hot air from your house over the evaporator coil. As the air passes over, the refrigerant within the copper tubing absorbs the heat.
How does dust affect the efficiency of an evaporator coil?
Even a fine layer of dust on the evaporator coil reduces its efficiency. The dust acts as an insulator, keeping the heat in and the air away from the cold coils. That means the coil can’t absorb as much heat as it can when clean.
