![]() ![]() As the piston continues to move downward suction gas is drawn into the compression chamber. At that pressure the suction pressure will now be greater than the compression chamber and the suction valve will open. Suction pressure is the low-pressure side of the system. Suction: The pressure of the refrigerant continues to drop until it reaches a point just below the suction pressure of the system. Refrigerant expanding is why this part of the process is called re-expansion. Also the pressure begins to decreases because the amount of refrigerant that was already in there is now in a larger space. The piston going down, increases the amount of space or volume, the refrigerant is in. Re-expansion: The compressor motor will start to turn and the piston begins to move down in the cylinder. At top dead center both the suction and the discharge valves are in the closed position and the refrigerant in the compression chamber is equal to the discharge pressure. Well start describing the process of the compressor when the piston is at its highest possible position within the cylinder. The suction and discharge valves open and close depending on the pressure difference of them and allow the vapor refrigerant to enter and leave the compression chamber at the proper moment. ![]() The discharge valve connects the compressor to the high pressure side of the system via the discharge line which carries refrigerant after it has been compressed. ![]() The suction valve connects the compressor to the low pressure side of the system via the suction line that carries refrigerant into the compressor. The evaporator is on the low pressure side and the compressor and condenser are on the high pressure side. The compressor is a dividing point between the high and low-pressure sides of the system and houses components such as the suction and discharge valves. Reciprocating compressors vary in size and capacity depending on the requirements of the system. The piston moves back and forth in the cylinder. Any liquid that may enter the compressor will result in reduced efficiency and capacity and will typically cause mechanical damage to the compressors internal components.Ī reciprocating compressor use pistons, cylinders, and valves to compress the refrigerant. Its important that the compressor increase the temperature so that it can finish removing the heat from inside the home to the condenser.Īir conditioner and heat pump compressors are known as vapor compressors because they are not meant to have any liquid, and liquids are not a compressible fluid. The heat in the refrigerant was transferred originally from the heat inside the home at the evaporator coil. ![]() The temperature of the freon being increased is very important, because the refrigerant will get so hot that the hot air outside will be cooler even in the summer when it can be up to 120 degrees! The air being cooler outside allows the heat in the refrigerant to transfer to it when it goes through the condenser coils. The direction of heat transfer is from a higher temperature substance to a lower temperature substance, the lower temperature being in the evaporator coil and the hotter being in the compressor and condenser. The compressor raising the pressure will also increase the temperature. Basically whats happening is the compressor is raising the pressure of the refrigerant so that the refrigerant will flow to the lower pressure refrigerant in the evaporator coil. High pressure fluids flow towards lower pressure fluid. Its important that the compressor raises the pressure of the vapor refrigerant so that it creates a pressure difference, the pressure difference is needed in order for the refrigerant to flow. An air conditioner compressor is the component in the system that raises the temperature and pressure of the vapor refrigerant that leaves the evaporator coil. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |