دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: the temperature and pressure at which a liquid begins to condense out of a gas. For example, if a constant pressure is held on a certain volume of gas but the temperature is reduced, a point is reached at which droplets of liquid condense out of the gas. That point is the dew point of the gas at that pressure. Similarly, if a constant temperature is maintained on a volume of gas but the pressure is increased, the point at which liquid begins to condense out is the dew point at that temperature. Compare bubble point.

the temperature at which liquids begin to condense from the vapor phase in a gas stream. (see also bubble point).