What is tube side and shell side?
One flows through the tubes (the tube side) and the other flows outside the tubes but inside the shell (the shell side). Heat is transferred from one fluid to the other through the tube walls, either from tube side to shell side or vice versa.
What is the difference between Shell and tube?
The tubes carry a fluid from their inlet to their outlet (the “tube-side” flow), while the shell passes a separate fluid over these tubes (the “shell-side” flow).
What is shell and tube used for?
Shell and tube heat exchanger is used in various industrial process applications because they can perform tasks such as: Removal of process heat and feed water preheating. Cooling of hydraulic and lube oil. Cooling of turbine, compressor, and engine.
How does shell and tube heat exchanger work?
The working of a shell and tube heat exchanger is fairly simple. One fluid flows inside the tubes and the other through the shell. While flowing they exchange the heats which means the cold fluid gains the heat from the hot fluid.
How do you choose tube side and shell side?
Fluids that are or will become vapors inside the heat exchanger should generally be allocated to the shellside because they have a larger volume and a lower heat-transfer coefficient. This will maximize its heat-transfer coefficient and lower the pressure drop.
What is the major difference between shell-and-tube vs plate and frame heat exchangers?
The difference between the plate heat exchanger and shell-and-tube heat exchanger are high heat transfer coefficient, and the logarithmic mean temperature difference is large and the end temperature difference is small.
Why is shell and tube better?
Advantages of Shell and Tube Heat Exchangers; Smaller designs can be lower cost. Much easier to service. O Ring seals also make them cheap to service. A better solution for sea water coolant, or other fluids at risk of clogging in narrow spaces.
What are the four important parts of shell and tube heat exchanger?
The principal components of shell-and-tube heat exchangers are:
- Shell and Shell-Side Nozzles.
- Tube-Side Channel and Nozzles.
Should hot fluid be in the shell or tube?
When more viscous fluid is kept on the shell side, the increased turbulence will result in increased heat transfer coefficient and improved overall heat transfer. Fluid with higher flow rate is generally preferred to be kept on the shell side.
What are the factors considered when choosing the shell or tubes route for the fluids of heat exchanger?
Basic process requirements: For both fluids (shellside and tubeside), the vendor’s specification should match your specified flowrate, operating temperature and pressure, and properties such as density, viscosity, and thermal conductivity.
What is the size of a shell and tube in plumbing?
It is also possible for the shell and tube side fluids to become mixed if leakage occurs. Tubes may range in diameter from 12.7 mm (0.5 in) to 50.8 mm (2 in), but 19.05 mm (0.75 in) and 25.4 mm (1 in) are the most common sizes. The tubes are laid out in triangular or square patterns in the tube sheets.
What are the different types of shell and tube design?
There can be many variations on the shell and tube design. Typically, the ends of each tube are connected to plenums (sometimes called water boxes) through holes in tubesheets. The tubes may be straight or bent in the shape of a U, called U-tubes.
What is a shell and tube exchanger?
A shell and tube exchanger consists of a number of tubes mounted inside a cylindrical shell. Figure 1 illustrates a typical unit that may be found in a petrochemical plant.
What is shell and tube heat exchanger P&ID diagram?
Typical shell & tube heat exchanger P&ID diagram This shell & tube heat exchanger diagram is actually simplified P&ID, depicting typical arrangement of piping, instrumentation and control systems around a shell & tube exchanger. This P&ID arrangement is a generic arrangement irrespective of the type of shell & tube exchanger used.