Hello there,
Would you allow me to ask one question?
Is there any way to get a saturated water vapor pressure value with a temperature outside of the range?
The range here means [273.06 K, 647.096 K]. The pressure value certainly exists (T<273.06 K), but the API only comes up with an error.
Here is the Maple worksheet where I got into this issue:
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with(ThermophysicalData):
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with(ScientificConstants):
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T2 := (-40.0 + 273.15) * Unit('K');
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xbb := 1: # 100% steam, saturated.
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Pg2 := PropsSI("P", "T", T2, "Q", xbb, "water");
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Download Q20220111.mw