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Fluids: pump curve

#9784  Permalink Top

Fluids: pump curve

Mar-06-20 16:37:32

Hi

I tried implementing a pump curve in my model. The quadraticFlow works fine, however only allows 3 points to be input. So I tried using the polynomialFlow function with 4 points, but it crashes. Even if I only give in 3 points.

Does anyone know if there's something wrong with this function? Or am I doing anything wrong? You can find my model in attachement

Thanks


polyn.mo

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#9785  Permalink Top

Re: Fluids: pump curve

Mar-06-20 17:03:21

The MSL pumps are quite sensitive. They need the pump curve extremum to be at V_flow=0 which cannot be guaranteed.

I recommend that you take a look at the pumps in the Modelica Buildings Library!

Best regards,
Rene Just Nielsen

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