Hi!
I am a young engineer working at an EPC company.
This is my first post, so please understand, if I am not familiar with writing style in this forum.
I am currently enrolled in a role for dynamic simulation of a compressor.
I requested inertia value from Vendor, and vendor gave me inertia value separately for compressor part, gear part, and motor part.
(lets say 2, 150, 180 kg-m2)
However, if you have worked dynamic simulation with Hysys, you can only input one inertia to the simulation file like the multiplication of mass and gyration.
If I input the inertia of compressor given by vendor, it is so small that there will be a surge, and i think this is not a right value because it is too small.
and if I put inertia that is the combination of compressor, gear, and motor (2+150+180), that is too large, and even if i won't experience a surge, it does not make sense to me based on other dynamic simulation experience. (last time, vendor gave me one connected inertia)
I will ask vendor again for connected compressor that can be properly input to hysys,
but I also want to ask if you have any idea to work with those values given above.
I looked for other peoples case, but I couldnt find any.
It will really help me out cause I am stuck to this for more than three days.
Thank You.