Flow rate issues in plate fin heat exchangers
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Recently, a plate-fin condensation-evaporation evaporator was designed, with liquid nitrogen in the cold channel and oxygen in the hot channel. The flow rate of liquid nitrogen is 19 Kmol/h, while that of oxygen is 14 Kmol/h. These flow rates are too low; how should it be designed to avoid laminar flow, which could affect the heat exchange efficiency?
It is indeed a bit small; I guess both its thickness and width will be quite small once it’s made