I have doubts regarding the data generated in one column of the ProII results table; please provide an explanation
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In the program results, there is a parameter labeled “standard vapor rate”. I believe this value represents the volume flow rate of gas under standard conditions, but it differs from the result I obtained through manual calculation. The formula I used for calculation was: mass flow rate × 22.4/MW. No matter what substance is used or under what temperature and pressure conditions the calculation is performed, there is always some difference between these two results. I’m not sure why If “standard vapor rate” does not refer to the volumetric flow rate of a gas under standard conditions, then what does it refer to? BTW: When I set the temperature and pressure of the material to standard conditions, the Actual rate value obtained is equal to the volumetric flow rate calculated manually under standard conditions.
Possible reasons: Check what pressure and temperature are defined as standard conditions in your software; they may differ from what we mentioned. The default value seems to be 1 atmosphere at 15.56°C (60F). :) This post was last edited by nanhua*aoyaoke on 2009-2-14 23:59 ]
Mass flow rate × 22.414/MW. Changing 22.4 to 22.414 should give a similar result. It is recommended to check the settings related to standard conditions in \"Standard vapor conditions\" under \"Unit of measure\"
Thank you! The default standard conditions for the program are 60F and 1atm. The problem has been resolved after making the adjustment.
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