Page 28 - DJJ20063- Thermodynamics 1

DJJ20063- Thermodynamics 1

As we continue to heat the steam beyond State 3, the temperature of the steam again

rises as we add energy. States to the right of State 3 are said to be superheated steam.

Summary of nomenclature:

Compressed or subcooled liquid (Between States 1 & 2)

A liquid state in which the fluid remains entirely within the liquid state, and below the

saturation state.

Saturated liquid (State 2)

All fluid is in the liquid state. However, even the slightest addition of energy would

result in the formation of some vapour.

Saturated Liquid-Steam or Wet Steam Region (Between States 2 & 3) Liquid and

steam exist together in a mixture.

Saturated steam (State 3)

All fluid is in the steam state, but even the slightest loss of energy from the system

would result in the formation of some liquid.

Superheated steam (The right of State 3)

All fluid is in the steam state and above the saturation state. The superheated steam

temperature is greater than the saturation temperature corresponding to the

pressure.

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