Types Of Water Cooled Condensers
Types of water cooled condensers generally used are as follows:
Double Pipe Condenser: These condensers, normally used in ammonia systems, consist of a pipe inside another pipe, or a tube within a tube. The tubes are positioned horizontally to form a vertical bank. The whole unit is fixed on a wall, and the water-ammonia mixture enters the sections at the bottom, flowing up through the inner pipe. The compressed refrigerant vapor goes through the top section flowing downward, due to which a counter flow is created.
Double Tube Condenser: It is a version of the double type condenser in which water flows inside the tubes, and refrigerant flows through the annular space between the two tubes. A compact condensing unit is created by placing the compressor inside the condenser.
Shell And Coil Condenser: It consists of a copper coil located in a steel shell. Water runs through the coil, and refrigerant vapor is discharged from the compressor, condensing on the outside of the cold tubes. This type of condenser is economical, but its maintenance is difficult. If a leakage occurs in the coil, it is essential to remove the head of the shell, and withdrawal of coil from the shell.
Shell And Tube Condenser: It is comprised of a large number of tubes located in a steel shell, with water flowing inside, and vapor flowing around the tubes. The vapors condense on the exterior surface of the tubes, and drops to the bottom of the condenser. A considerable amount of condensing surface is available in a smaller place.