Guys, please take a look at the HTRI results!
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Guys, please take a look at the HTRI results! What parameters should be paid attention to, and are there any that still need optimization?
When analyzing HTRI results, attention should be focused on parameters such as heat transfer coefficient, pressure drop, heat exchange area, and fluid distribution. It is also necessary to ensure that the design parameters such as maximum operating pressure and temperature are not exceeded. If deficiencies in the results are detected, it may be necessary to adjust the process parameters or the heat exchanger design to achieve a better heat exchange efficiency. .
Choosing BEM means a fixed tube sheet with no core withdrawal possible; the overdesign margin can be set a bit higher in that case. For pipe dimensions, HTRI provides default sizes, which are standard components; however, the calculation documents use rounded-off, non-standard values, so it is necessary to communicate with the manufacturer. Check the area behind the baffle at the outlet of the tube side to ensure there is no dead zone; the flow direction should be adjusted accordingly. The flow velocity in the tube side is relatively low, and a higher flow velocity reduces the risk of scaling
The flow rates in both the tube side and the shell side are low, resulting in a low overall heat transfer coefficient. The diameter of the heat exchanger can be changed to DN800, and the spacing between the baffle plates can be reduced; this will increase the heat transfer coefficient in the shell side. For high-pressure gases, finned tubes can be used to further improve the heat transfer efficiency.