Consider we have a 1-2 Shell and Tube Heat Exchanger with tube diameter 20mm and shell diameter 55mm, we have two fluids A&B, A is supply water and B is distilled water, we desire to have their flow rates as 15m3/s and 21m3/s respectively. Which fluid pass arrangement would be best suited for the HE?

Consider we have a 1-2 Shell and Tube Heat Exchanger with tube diameter 20mm and shell diameter 55mm, we have two fluids A&B, A is supply water and B is distilled water, we desire to have their flow rates as 15m3/s and 21m3/s respectively. Which fluid pass arrangement would be best suited for the HE? Correct Answer Counterflow with B in tube and A in the shell side

When we are required to provide the best arrangement for a Shell and Tube HE, we consider keeping the fluid with fouling properties on the shell side, this helps to clean the fouling caused on the equipment for the longevity of the equipment and also reduce maintenance costs.
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