U-Tube Bundle Heat Exchanger

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The U Tube bundle heat exchanger is the most common type of heat exchanger in all Industries. Mostly used in higher-pressure and Higher Temperature applications.
In nuclear power plants called pressurized water reactors, large heat exchangers called steam generators are two-phase, shell-and-tube heat exchangers which typically have U-tubes. They are used to boil water recycled from a surface condenser into steam to drive a turbine to produce power.
Most shell-and-tube heat exchangers are either 1, 2, or 4 pass designs on the tube side. This refers to the number of times the fluid in the tubes passes through the fluid in the shell. In a single pass heat exchanger, the fluid goes in one end of each tube and out the other.

A heat-exchanger system consisting of a bundle of U tubes (hairpin tubes) bounded by a shell (outer vessel); one fluid flows through the tubes, and the other fluid flows through the shell, in the order of the tubes. Multitherm can duplicate any obtainable bundle to include dimensions, materials and performance. We can build "U" tube bundles, straight tube "floating" tube bundles, or we can retube fixed tube sheet heat exchangers when the bundles is not removable. multitherm is not locked into any one material. Most bundles tend to be build with copper tubes and steel tube sheets.

Heat Exchangers