Saturated Vapor

Saturated vapor
A saturated vapor is a vapor at a condition (temperature and pressure) where it is in equilibrium with its liquid phase. This means that any decrease in temperature (or increase in pressure) will cause some of the vapor to condense into liquid droplets.

Key Points:

• It represents the maximum amount of vapor that can exist at a given temperature and pressure without condensation.
• Found on the saturation line in phase diagrams (such as pressure–enthalpy or temperature–entropy diagrams).
• Commonly encountered in steam systems, refrigeration cycles, and HVAC applications.

In automotive and aerospace engineering, understanding saturated vapor is critical in cooling systems, air conditioning, and fuel system behavior under varying pressure/temperature conditions.