Problems with the condenser
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According to the calculations, a condenser area of 500 m2 is required; therefore, the following equipment specifications are proposed: for the shell side, DN1200; 19 tubes with a length of 5000. Gas will flow through the shell side, and the inlet for the gas phase on the shell side shall be DN500 (with a gas flow velocity of 15 m/s). However, the equipment specialists suggest that it is not feasible to use a DN500 connection on the DN1200 setup, as this would cause the gas to flow in a short circuit! Please give some suggestions
Then increase the number of tubes and reduce their length; it doesn’t matter much if the heat exchange area of the heat exchanger is slightly larger. A convex exterior design could also be considered. Last edited by sister on 2009-2-28 10:14]
There’s no problem with this startup; it’s just a lack of experience with the equipment.
It is possible to consider enhancing the equipment design by adding baffles to the shell layer, thereby preventing the fluid from taking short circuits and ensuring stable and uniform heat exchange. Of course, the pressure drop must meet the requirements of the process.
The shell side of the equipment is equipped with baffles. Since a shock plate is required at the gas inlet, there are three fewer rows of tubes compared to the standard design. These tubes cannot cover the entire DN1200 diameter evenly, so it is considered that this could lead to short circuits!