In the results, the fluid streams entering and leaving a compressor train are now defined separately from the fluid
streams entering and leaving the individual compressor stages (pressure, temperature, composition, density, etc.).
This used to be covered only by reporting the inlet/outlet pressures before choking.
If there is any upstream choking, this will happen between the inlet of the compressor train, and the inlet of the
first compressor stage. This means that in a situation with upstream choking, the fluid stream entering the compressor
train will have higher e.g. pressure and density than the fluid stream entering the first compressor stage. If there
is any downstream choking, this will happen between the outlet of the last compressor stage and the outlet of the
compressor train. This means that in a situation with downstream choking, the fluid stream leaving the compressor
train will have lower e.g. pressure and density than the fluid stream leaving the last compressor stage.
If a compressor train is not able to reach the requested inlet or outlet pressure, both the compressor stages and
the compressor train used to be reported as invalid. This is now changed. If the compressor stages are operating within
their capacity, they will now be reported as valid even if the compressor train as a whole is not able to reach
the requested inlet or outlet pressures.