hi,
I'm using Unisim HYSYS and the specific enthalpy there is not equal to the enthalpy in thermodynamic tables.
for example: r141b specific enthalpy of vapor in 400 kpa is 490 kj/kg and in the software the exact same specific enthalpy is -2869 kj/kg.
what is this kind of enthalpy? all of the enthalpy values shown in this way.
thanks.
Edited by shahar bakal, 19 June 2016 - 07:34 AM.