Issues with pumps in Aspen simulations
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This post was last edited by nly1223 on 2011-4-1 17:24. The etherification process of light gasoline was simulated using Aspen, with some pumps and valves involved in it. I have some questions regarding centrifugal pumps and would like to ask the experts on Haichuan for advice: When selecting a pump, only its head and flow rate are necessary. However, when installing it, its allowable installation height also needs to be taken into consideration. On Aspen’s result screen, there is a value labeled “NPSH available”. I would like to ask whether this refers to the actual NPSH or the required NPSH And since the flow conditions in Aspen simulations are ideal and flow resistance is ignored, can this net positive suction head be directly converted into an allowable installation height? Thank you all, experts!
Necessary net positive suction head················