How to calculate the resistance of heat exchangers in air separation units
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How is the resistance of a low-pressure plate heat exchanger calculated? Is the plate heat exchanger resistance for contaminated nitrogen equal to the pressure in the tower minus the pressure in the water-cooled tower? What is the typical value? Is 25 KPa high? To determine that a low-pressure plate heat exchanger has low resistance, which parameter should be considered to judge whether it is good or not?
I usually calculate it this way: inlet pressure to the tower – pressure at the top of the lower tower + resistance in the lower tower = resistance of the plate-type air channels; you can calculate the rest by yourself, OP~~