What is the price difference between Shell Side E and Shell Side F?
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For a heat exchanger of the same size, for example one with dn=9000 mm and tl=6000 mm, 800 tubes, what is the price difference between heat exchangers in the BEM and BFM configurations for two flow paths? When choosing the shell side, how do people consider these two forms, E and F? If the voltage drop permits it. Thank you
Prices of the BEM and BFM types of heat exchangers: BFM has one more longitudinal partition than BEM, so the price difference is not significant. The F-type shell is chosen primarily due to considerations related to the heat transfer coefficient and temperature difference correction, which results in a smaller area for the heat exchanger.
Reply to 2# sus321: I was wondering that when the flow rate in the shell side is very low, using the F type can effectively increase this flow rate. However, I’m concerned about the large price difference between the two options, as well as the possibility of increased leakage. So I’m not sure whether it’s better to choose the F type or to use two E units in series.
If money isn’t a concern, choose two serial ones. If you are confident in the company’s manufacturing capabilities, choose the F model for a single unit.
dn=9000mm, tl=6000mm? It should be DN900! Type F: it has a high shell-side flow velocity, good heat transfer performance, and the pressure drop should also be higher. For the same area, the F-type is more difficult to manufacture. The price difference shouldn’t be that big. It’s just that there is an additional partition in the middle. However, it shouldn’t be viewed in that way; using an F-type heat exchanger is definitely better than an E-type one. The heat exchange area will certainly be smaller, but the total cost to achieve the same level of heat exchange should not differ much. Or rather, there are fewer F-types!
Reply to 5# loyal: Haha, it was the DN900 model – I made a mistake. As you said, it seems that it’s indeed possible to choose the F model; although the heat exchange area is smaller, the overdesign factor increases, so it should still be acceptable.