Centrifugal Compressors-Polytropic VS Adiabatic
Centrifugal Compressors-Polytropic VS Adiabatic
(OP)
Dear Members,
In Centrifugal Compressors we calculate Polytropic efficiency only -Why not adiabatic efficiency ?
Where we calculate and use adiabatic efficiency?
Thanks in advance.
In Centrifugal Compressors we calculate Polytropic efficiency only -Why not adiabatic efficiency ?
Where we calculate and use adiabatic efficiency?
Thanks in advance.





RE: Centrifugal Compressors-Polytropic VS Adiabatic
RE: Centrifugal Compressors-Polytropic VS Adiabatic
For centrifugal compressors machine, polytropic efficiency is more accurate than adiabatic efficiency as poly effy doesnot change with change in press ratio.
Adiabatic waas used in before early 80s.
Majhi
RE: Centrifugal Compressors-Polytropic VS Adiabatic
RE: Centrifugal Compressors-Polytropic VS Adiabatic
Just be sure not to use isentropic efficiency when calculating power using polytropic head, and visa versa.
Regards,
Tom McGuinness