Steam quality is the proportion of saturated steam (vapor) in a saturated condensate (liquid)/steam (vapor) mixture. A steam quality of 0 indicates 100% liquid (condensate) while a steam quality of 100 indicates 100% steam or 1 lb of steam with 95% steam and 5% percent of liquid entrainment has a dryness fraction of .95.
The measurements that need to obtain a steam quality measurement are temperature, pressure and entrained liquid content. A high percentage (88% or more) of the industrial steam systems use saturated steam for the process applications.
Saturated steam (steam that is saturated with energy) had enough energy added to saturated liquid to achieve the vapor phase.
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