Steam compressor pressure
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Everyone, I have a question. How to calculate pressure for a steam compressor handling saturated water vapor? For example: 1) The inlet temperature is 70 degrees, the outlet temperature is 85 degrees, so the temperature rise is 15 degrees. Should the pressure difference between the inlet and outlet be calculated as 0.27 bar? 2) Inlet at 90 degrees, outlet at 105 degrees, temperature rise of 15 degrees; the pressure difference between inlet and outlet is calculated as 0.5 bar? Thank you all!
Just calculate it based on adiabatic compression; it shouldn’t be that high, probably around 0.1 bar
Could you explain in detail how it is calculated? Thank you!
It can be estimated using an adiabatic process: ε = P2/P1, where k = Cp/Cv and T2/T1 = ε^(K-1)/K. Here, ε is the base, and (K-1)/K is the exponent. The values of P1, Cp, and Cv can be determined from steam enthalpy and entropy tables using the inlet temperature; once ε is known, P2 can be calculated