Heat exchanger simulation

2 inlets -> 2 outlets

Governing equations

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

Q = F_{hot}(h_{hot,in}-h_{hot,out}) = F_{cold}(h_{cold,out}-h_{cold,in})

Q: duty [W] — heat handed from the hot stream to the cold one; what one side loses the other gains
F: molar flow [mol/s]
h: molar enthalpy [J/mol] — heat content; the balance sets the hot side's drop equal to the cold side's rise

exactly one of: duty [W] OR hot_outlet_temperature [K] OR cold_outlet_temperature [K]; optional hot_pressure_drop / cold_pressure_drop [Pa]