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Flare Simulation Software (Flarenet, Etc)


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#1 Amin Va

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Posted 17 March 2015 - 11:16 PM

Hi All,

 

In order to simulate a flare net work for a plant (with about 50 PSVs and BDVs), which software is recommended to simulate the flare network? 

 

I am wondering what is the difference between flarenet and HYSYS in simulation of a flare network? It is appreciated if you share your experience.

 

Also I would like to know if there is any other reliable software than Flarenet that is developed for Flare network modeling.

 

Thanks.



#2 mdanze

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Posted 26 July 2016 - 04:52 PM

The most significant difference between flarenet and Hysys is that the first one will let you manage diferent scenarios in a very simple way while hysys is not intended for that. Using hysys in a complex system may be a little complicated. Ive been using flarenet in systems with single and two phase relief scenarios and back pressure calculations are similar to the ones calculated with hysys. I dont know if there is another soft available.

#3 shvet

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Posted 26 July 2016 - 10:59 PM

Hi, Amin Va

 

Aspen Flarenet

- can be linked with AspenPlus or HYSYS model

- there are only simple thermo packages

- doesn't simulate flares (incl. pressure drop)

- doesn't calculate PSV upstream pipes

 

SimSci Inplant

- can be linked with Pro/II model

- can calculate firecase

- doesn't simulate flares (incl. pressure drop)

- doesn't calculate PSV upstream pipes

 

Flaretot

- can't be linked with any process model

- there are only simple thermo packages

- can calculate flares (incl. radiation, dispertion, noise etc)

- can't calculate enclosed flares

- doesn't calculate PSV upstream pipes

 

VisualFlow

- have no detailed information

 

FlareSim

- can calulate only flares but do this perfectly

 

Aspen Dynamics and SimSci Dinsim

- they have PSV module and can calculate PSV+pipes but I have no detailed information

 

I haven't found yet a software can calculate vent stacks, gasholders, compressors and absorbers. There are only simple spreadsheets and no any flexible simulator.

 

If you simulate only flare header I would recommend Flarenet or Inplant. If you simulate flareheader + flare I would recommend Flaretot . If you simulate chemical (not refinery) plant flare header where are not only simple hydrocarbons I would recommend Inplant. If you simulate complex flares (enclosed, marine platform etc.) I would recommend FlareSim. If you simulate complex process upset and would like to reduce flare capacity I would recommend a dynamic simulator - Aspen Dynamics or SimSci Dinsim.


Edited by shvet, 28 July 2016 - 10:02 PM.


#4 christopherchoa

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Posted 29 July 2016 - 01:37 AM

Amin Va,

 

Comparing Aspen HYSYS with Aspen Flarenet is like comparing apples to oranges. They are built for different purpose. Aspen HYSYS is not meant to do hydraulics (its hydraulic model is not being used by any EPC company as it is unreliable). With that the same company Aspen built Flarenet for the purposes of flare hydraulics.

 

All the best



#5 Chief Engineer

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Posted 28 August 2016 - 08:29 AM

I have utilized Hysys or Unisim for over 20 years in doing flare system hydraulics and it is a bit tricky to get convergence. One must know what they are doing to do so. I am a bit concerned about the claims of unreliabilty and do believe to make such a claim requires a bit more explanation. Is it because it is hard to use for a novice engineer and the "EPC" firms referred to are unwilling to risk the possible errors or is it something more fundamental. I have utilized Pipephase and Stoner's transient pipe simulation software overmy career along with having benchmarked Hysys against some Olga runs with good results. I am curious to hear more and a fully explanation than just some unsubstantiated claims.




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