Unformatted text preview: Engineering units (SI) for pressures & Pe Pi is , Pascal Pa for specific volumes, & ve vi is / m3 kg ** Subscripts ‘e’ for exit and ‘i’ for inlet. And, γ is the specific heat ratio which is a constant for ideal gas given by = γ CpoCv0 From the thermodynamic property table for ideal gas, we can directly obtain the values of Cpo and Cvo for Propane. Then, CpoCvo will give us value of γ Engineering units (SI) for specific heat at constant pressure, Cpo is kJkgK specific heat at constant volume, Cvo is kJkgK specific enthalpy at exit, he is / kJ kg specific enthalpy at inlet, hi is / kJ kg Using equation  we can obtain the polytropic efficiency for this case....
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- Spring '11
- Thermodynamics, ........., CVO