Multi-Stage Compressor simulation

All unit operations

Multi-Stage Compressor simulation

1 inlet -> 1 outlet (N staged compressions with interstage cooling)

Simulate it free Browse example flowsheets

Governing equations

The exact equations the solver works for a multi-stage compressor — the same math shown in the app's "Theory" panel, not a black box.

r = \left(\frac{P_{out}}{P_{in}}\right)^{1/n} \quad(\text{equal pressure ratio per stage})

S(T_{2s,k}, P_k) = S(T_{1,k}, P_{k-1}) \quad(\text{stage } k\text{, same isentropic solve})

T_{\text{intercool}} \to T_{1,k+1} \quad(\text{isobaric cooling between stages})

r: per-stage pressure ratio
n: number of stages
k: stage index
T: temperature [K]
P: pressure [Pa]
S: molar entropy [J/mol/K]
T_{\text{intercool}}: intercooler target outlet temperature [K]

Parameters

outlet_pressure [Pa, > inlet]; n_stages [int, default 1]; efficiency [default 0.75]; intercool_temperature [K, default = inlet temperature]