Definitions

Saturation: conditions existing when a substance contains all of another substance it can hold for that temperature and pressure

Saturation Pressure : the force in a pressure vessel that matches the temp. of a certain contained gas at a condition where any removed heat would cause condensation, and any added heat would cause evaporation.

Saturated Vapor : vapor that has all heat it can hold without becoming superheated

Saturated Liquid : a liquid that has all the heat it can hold without changing into a vapor

Super Hated Vapor : a gas that has been heated to a temp. that is above its boiling point

Gas : a vapor that is superheated

Vapor : a gas that is at its saturation temperature and pressure

Sub Cooled : a liquid at a temperature below its saturation temperature

Refrigerant : is a fluid that picks up heat by evaporating (boiling) at a low temperature and pressure, it also rejects heat by condensing a higher temperature and pressure