opening PULS files in Autopipe and vice-versa

PULS will be able to read AutoPIPE models that are saved in NTL (text) format. PULS can import NTL files with version 1.1 or smaller (corresponding to AutoPIPE XM (or 8.9). PULS may be able to NTL files with versions after 1.1 provided that the NTL cards recognized by PULS are not affected.

One way to accomplish this using a newer version of AutoPIPE would be to:

1. Save model as v8.9 in new version of AutoPIPE
2. Open model in AutoPIPE v8.9 and generate NTL 1.1
3. Open NTL in PULS.

Helge,

I am not sure how much complicated is your model, but in my opinion, in my case, i.e. reciprocating compressor stations it is usually almost the same time-consuming modelling manually as importing from AutoPIPE. I did some benchmarks and I feel we have more control over model data this way. Piping geometry is only a fraction of time to spend on model preparation. 

Besides, it is necessary to build separate sections of piping for suction and discharge or interstage. Next - it is necessary to build models of equipment, which is way different from what can be done in AutoPIPE. 

What do you think about my remarks?

Thanks fro your comments Luke,

I was able to export an NTL from Autopipe even with the latest version and the import into PULS also worked. Although, there is a limit of maxim elements that can be translated from NTL into PULS. In the end I had to break my AutoPipe model into compression stages. to get it imported into PULS.

Regards,

Hi Maciej,

Thank you for your comments.

I preferred to build the model in AutoPipe over PULS for two reasons.

1. The latest version of PULS has copy / Past disabled, which is quite frustrating when modelling symmetric components (i.e. Cylinder gas passage or relief lines)
2. I can later use the same AutoPipe model for the mechanical shaking force response analysis. 

Initially, I was hoping to be able to export the AutoPipe model into a Finite Element Analysis software, but the detail of the export format was not sufficient for FEA. At least I couldn't find the right export format.

Unfortunately, the NTL PULS export format from AutoPipe is also of limited quality. It will export only those pipe nodes that change the pipe dimensions or orientation, but not elbow or straight section segment nodes for example.

Regards,