Flow direction considerations when arranging tubes in heat exchangers
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As the title suggests: when arranging the tubes in a heat exchanger, does the flow direction to be considered refer to the flow direction at the inlet and outlet of the shell side, or rather the flow direction between the gaps in the baffle plates? These two flow directions are both parallel and perpendicular to each other. As a beginner in heat exchangers, I considered the flow direction between the gaps in the baffle plates, but I’ve seen some designs in which the piping is arranged according to the flow direction at the inlet and outlet of the shell side. I’m a bit confused! Please everyone **help to clarify this, thank you!
First determine the flow direction of the shell side inlet and outlet, then determine the direction of the baffle notches.