what is the formula for
what is the formula for
(OP)
how do i get the grains per pound out of tempiture and relative humidity. i need it to create a excell spread sheet. i use it for structural drying.
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RE: what is the formula for
The RH tells you the percentage of water relative to the saturation level at the temperature stipulated. There are equations and articles all over the internet about this.
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RE: what is the formula for
RE: what is the formula for
Then you need to use the following and be consistent with your units:
W = 0.62198.RH/100.PVsat
____________________
Patm - RH/100.PVsat
Multiply by 7000 for grains.
This appears to rely on the assumption that the RH is the same as degree of saturation, which is a minimal error for most applications.
Should do the trick.
RE: what is the formula for