Ok got it. Thanks!Nidum said:A two pass heat exchanger has two sets of tubes . Working fluid first goes through one set of tubes then does a U turn and comes back through the other set of tubes . So the working fluid passes through the heat exchanger twice . Hence the description two pass .
U r correct if u cut the capsule shell u will see 140 tubes. The configuration is as what Nidum said, it makes a U turn. This is to increase effective area in which the two fluids interect.Janiceleong26 said:I see. Meaning there will be a total of 140 tubes in the heat exchanger? But wouldn't that be 140 tube passes? I'm confused as to what is the difference between 'tube pass' and 'tube'
Nidum said:A two pass heat exchanger has two sets of tubes . Working fluid first goes through one set of tubes then does a U turn and comes back through the other set of tubes . So the working fluid passes through the heat exchanger twice . Hence the description two pass .
A Shell and Tube Heat Exchanger is a type of heat exchanger that consists of a shell (a large pressure vessel) with a bundle of tubes inside. One fluid flows through the tubes and the other fluid flows around the tubes, allowing for heat transfer between the two fluids.
In a Shell and Tube Heat Exchanger, one fluid flows through the tubes while the other fluid flows around the tubes. The two fluids are kept separate by the tube walls, but heat is transferred between them through conduction. The hot fluid heats up the tube walls, which then transfers the heat to the cooler fluid flowing around the tubes.
There are several advantages to using a Shell and Tube Heat Exchanger. First, they are highly efficient at transferring heat between two fluids. They are also compact in size and can handle a wide range of temperature and pressure conditions. Additionally, they are easy to maintain and can be used for a variety of applications.
There are three main types of Shell and Tube Heat Exchangers: fixed tube sheet, U-tube, and floating head. In a fixed tube sheet heat exchanger, the tube sheets are welded to the shell, while in a U-tube heat exchanger, the tubes are bent into a U-shape. A floating head heat exchanger has a tube bundle that can move or expand within the shell to prevent thermal stress.
When selecting a Shell and Tube Heat Exchanger, several factors should be considered, including the fluids being used, the desired temperature and pressure conditions, the flow rate, and the space available for installation. It is also important to consider the material of construction, as it should be compatible with the fluids and conditions. Additionally, the cost and maintenance requirements should also be taken into account.