Steam Density

Written by Jerry Ratzlaff on . Posted in Thermodynamics

Steam density, abbreviated as \(\rho\)  (Greek symbol rho), has a higher density than water vapor, the higher the pressure the higher the steam density.

 

Steam Density FORMULA

\(\large{ \rho_s = \frac{P \; MW}{R^* \; T}  }\)  

Where:

 Units English Metric
\(\large{ \rho_s }\)  (Greek symbol rho) = steam density \(\large{\frac{lbm}{ft^3}}\) \(\large{\frac{kg}{m^3}}\)
\(\large{ MW }\) = molecular weight of water \(\large{\frac{lbm}{lbmol}}\) \(\large{\frac{kg}{kmol}}\)
\(\large{ P }\) = pressure \(\large{\frac{lbf}{in^2}}\) \(\large{Pa}\)
\(\large{ T }\) = temperature \(\large{F}\) \(\large{K}\)
\(\large{ R^* }\) = universal gas constant \(\large{ \frac{lbf-ft}{lbmol-R} }\) \(\large{ \frac{J}{kmol-K} }\)

 

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Tags: Steam Equations Density Equations