Hi, I've spent ages trying to get this simple model to run. Any idea why the Gas Export Pipeline section will not converge. I've removed some thermal calc. complexity, reduced length of section, etc etc. But still no joy. Appreciate your thoughts. Dave
Thanks for that. When I switch to VLE, material streams are showing as liquid only even with 0.96mol% methane. And the gas export pipeline does not compute because there is no gas coming out of the separator into the gas export pipeline.
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All streams are vapor only here. Make sure to select Nested Loops VLE only, remove VLLE from the list. Also, sover configs => enable Parallel CPU acceleration, disable Inspector and disable SIMD acceleration.
And last but not least, run it in v5.8 Update 5.
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Thanks for that. I've got it running now. Had to change to SRK eos and adjust pressure / termperature tolerances. Model attached. Need to look at it carefully. Learning from this...you need to really look carefully at eos and flash algortithm and lots of other things to get the model to run.
Hi, I've spent ages trying to get this simple model to run. Any idea why the Gas Export Pipeline section will not converge. I've removed some thermal calc. complexity, reduced length of section, etc etc. But still no joy. Appreciate your thoughts. Dave
You don't need the Nested Loops VLLE flash algorithm if you don't have water in your HC stream. Switch to Nested Loops VLE and it will converge.
Thanks for that. When I switch to VLE, material streams are showing as liquid only even with 0.96mol% methane. And the gas export pipeline does not compute because there is no gas coming out of the separator into the gas export pipeline.
All streams are vapor only here. Make sure to select Nested Loops VLE only, remove VLLE from the list. Also, sover configs => enable Parallel CPU acceleration, disable Inspector and disable SIMD acceleration.
And last but not least, run it in v5.8 Update 5.
Thanks for that. I've got it running now. Had to change to SRK eos and adjust pressure / termperature tolerances. Model attached. Need to look at it carefully. Learning from this...you need to really look carefully at eos and flash algortithm and lots of other things to get the model to run.