Compressor simulation
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Compressor models were developed using simulation software such as Aspen and USD. The performance curves of the compressors provided by the manufacturers were input into these models, along with the inlet conditions of the compressors based on the actual operating conditions. As a result, the results of the simulation calculations could never match those of actual operation, with a significant difference between the two. Please give me some advice. (Note: The compressed medium is relatively pure ethylene.) Doubt: Could it be that there is an issue with the performance curves provided by the compressor manufacturer itself?
I understand that the performance curves provided by compressor manufacturers may not match the actual performance in the field. Therefore, a compressor model built using the performance curves provided by the manufacturer is likely to not match the field data.
There are very few people answering questions now. Is there something wrong with my questions? . .
OP, then how did you make the adjustments?
It couldn’t be adjusted; later, we had the people from Aspen Company try to do it, but they weren’t successful either. He suspects that the performance curve does not match the actual operating conditions; either there is a problem with the performance curve itself, or the machine has changed over time and no longer conforms to the original design.
The performance curves provided by compressor manufacturers represent ideal conditions and are slightly higher; over time, as the compressor operates continuously, its actual performance declines compared to that at the time of manufacture
What you’re saying is too general; there are no parameters either, so it’s impossible to make a comparison.
Is there a simulation for long-distance compressors? How to set the boundary conditions?