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Pressure Drop On Gas Pipeline Hysys

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#1 LizbethR14


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Posted 20 September 2017 - 06:02 PM



I compared the results of pipe segment in Aspen HYSYS for a wet gas pipeline of about 8 kilometers long with actual field data, and found that it over predicts the pressure drop. Other than varying the roughness, what other changes can I make to close the gap?

Edited by LizbethR14, 20 September 2017 - 06:02 PM.

#2 Bobby Strain

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Posted 20 September 2017 - 06:58 PM

You might want to give us some screen shots from HYSYS. Along with the calculated and measured values. Have you checked using other correlations?



#3 serra


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Posted 21 September 2017 - 03:38 AM


you should provide additional data or contact technical support,

for example, a different correlation can predict a different pressure drop,

in the same way a different thermo package can predict a different density or amount of condensate etc. etc.

recently, for a 2 Km pipeline, with another software (Prode Properties)

i have found up to 7% differences (selecting different correlations, EOS etc.)

but that depends from the specific application.

#4 Pan Nata

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Posted 21 September 2017 - 09:24 PM



You have to check what kind of correlation that you use for the simulation, your pipeline is new or not, whether your pipeline bathymetry is correct or not.

#5 christopherchoa


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Posted 22 September 2017 - 12:19 AM

Or check other software



#6 christopherchoa


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Posted 18 September 2019 - 06:54 PM

Hi Lizbeth14,


found that it over predicts the pressure drop


A white paper produced by Aspen for multiphase flow shows Beggs and Brill over-predicts pressure drop for horizontal and incline pipelines. They suggested using Tulsa Unified, HTFS and Gregory et al. models.





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