Dynamic simulation of compressors – mass non-conservation

2020-04-07View Original

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This post was last edited by Captain Pengpeng on 2020-4-7 at 08:49. Could someone expert please help figure out why the mass is not conserved at the inlet and outlet in this simple compressor simulation? It works in the steady-state condition, but once it switches to dynamic operation, the mass flow rates at the inlet and outlet are no longer conserved; pressure is used to determine the values at the inlet and outlet.

Reply #22020-04-07

If it’s not conserved, can the dynamics still be calculated?

Reply #32020-04-08

It’s possible, so I also find it strange. The solver does not report any errors; the integrator can run continuously no matter how much time is given.

Reply #42020-06-09

Discussion on HYSYS dynamic simulation*; you can join QQ group 254750605

Reply #52022-03-29

This post was last edited by *jun on 2022-3-29 15:51 to be done again

Reply #62022-05-22

Did you use V11 to do it? I can’t open my V9.

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Dynamic simulation of compressors – mass non-conservation

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