Hysys

[bzeng]

How to enter relative humidity into hysys for air injection?

[motaleby]

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Dear bzeng

You should use Psychometric Charts to find (kg H2O)/ (kg Air), you can determine this ratio by 2 known parameter of "Dry Bulb Temp, Wet Bulb Temp, Relative Humidity, Humidity Ratio and Enthalpy". The below site explains how to obtain the desired parameter from psychometric charts:

[link Point to another website Only the registered members can access]
or simply use the uploaded G&P software:

[link Point to another website Only the registered members can access]
(

[link Point to another website Only the registered members can access]
Then go to the composition tab in HYSYS and change basis into "Mass Fraction" and enter the proper fraction which obtained from the charts or software.

Good Luck


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