Question: CoolProp fsolve - Flow Through an Expansion Valve


I want to evaluate the change of temperature and energy loss during the flow through an expansion valve.

But the command fsolve this does not work with CoolProp.

The following command is just repeated, but gives no result.

fsolve({ThermophysicalData:-Property("D", "H2", "temperature" = TTT, "pressure" = ppp) = 31.13, ThermophysicalData:-Property("H", "H2", "temperature" = TTT, "pressure" = ppp) = 4.098640000*10^6}, {TTT, ppp})



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