Hi
when "Off-design" correction is applied in Hysys due to a change in MW and T with reference to what the original curves are based on, Hysys corrects the Head, Flow and Speed based on the new MW and T.
The question is; The corrected Head and Flow are ok, but what does the corrected speed mean? In the documentation a formula is given for a corrected Speed. I thought a compressor impeller (variable speed) gives a certain speed and that doesn`t change without installing a new impeller?
Best regards
Heyerdahl
when "Off-design" correction is applied in Hysys due to a change in MW and T with reference to what the original curves are based on, Hysys corrects the Head, Flow and Speed based on the new MW and T.
The question is; The corrected Head and Flow are ok, but what does the corrected speed mean? In the documentation a formula is given for a corrected Speed. I thought a compressor impeller (variable speed) gives a certain speed and that doesn`t change without installing a new impeller?
Best regards
Heyerdahl