Steam quality or steam dryness is the porportion of saturated steam (vapor) in a saturated condensate (liquid) / steam (vapor) mixture. A steam quality of 0 indicates 100% liquid (condensate), a quality of 100 indicates 100% steam. One (1) pound of steam with 95% steam and 5% of liquid has a steam quality of 0.95.
The measuremenrs needed to obtain a steam quality measurement are temperature, pressure, and the entrapment of liquid content. There is a proportional relationship between temperature and pressure in saturated steam, as the temperature rises so does the pressure.
Tags: Equations for Steam