Section summary |
---|

1. Formula |

2. Usual values |

For 1 compressor stage

Note : in case of multi staged compressor, if the compression ratio
of each stage is unknown, it can be assumed at 1st approximation
that τ_{one stage}=τ1/n

p

T

p

τ=p

n=number of compression stages

Cp=Specific Heat at Constant Pressure (kJ/kg.K)

Cv=Specific Heat at Constant Volume (kJ/kg.K)

For air Cp/Cv=1.4

**Source**

Pneumatic Conveying Design Guide, David Mills, Elsevier Butterworth-Heinemann, 2004