In consulting the refrigerant pressure-enthalpy diagram shown in the illustration, what statement is true concerning the saturated vapor line? See illustration GS-RA-20.
ā¢ Locate the saturated vapor line on the pressure-enthalpy diagram and note which side is labeled superheated region (all vapor) and which side is the saturated region (vapor/liquid mix). ā¢ Review what quality means in refrigeration/thermodynamics (percentage of mass that is vapor in a saturated mixture). ā¢ Compare the meanings of 0% quality and 100% quality in terms of the proportions of liquid and vapor.
ā¢ On the diagram, if you move from the saturated region into the superheated region, what happens to the amount of vapor present? ā¢ For a point exactly on the saturated vapor line (not to the right or left of it), is any liquid still present? How does that relate to quality? ā¢ Which quality value (0% or 100%) would correspond to a state of all liquid? Which to a state of all vapor?
ā¢ Confirm from the figure which side of the dome is labeled saturated liquid line and which side is labeled saturated vapor line. ā¢ Verify the definition: 0% quality = 0% vapor, 100% liquid; 100% quality = 100% vapor, 0% liquid. ā¢ Match the correct quality description (0% or 100%) to the label saturated vapor line on the diagram before choosing your option.
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