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08102017, 02:29 AM #1
How to calculate properly massflow of water with a given air humidity and velocity?
Hello,
Lets say there is an airflow
its velocity : 0.59 m/s
area of flow : 0.13m^2
volume flow : 0.077m3/s
relative humidity measured : 33.5 %
temp : 22 C
I could calculate mass "mixing" ratio of the air:
X= 1g(h2o)/180g(dry air)
formula i found here on page 10.
I could also calculate "absolute humidity" with the formula on page 12 :
AH=6.3 g/m3
So the question is : Which should i use in calculation of water mass flow? (kgwater/h)
mass flow equation is : m=ϱ*A*v
the AH has the same unit as ϱ. Calculating as m=AH*A*v , i get 1.76 kg/h, which seems legit.
But is there a way to calculate "m" from that mixing ratio?
like i tried putting the X in the equation like m=ϱwater*X*A*v , but got very bad results.
Thanks for help!Last edited by Kristof Papp; 08102017 at 02:35 AM.