Saturation Vapor Curve on:
[Wikipedia]
[Google]
[Amazon]
The saturation vapor curve is the curve separating the two-phase state and the superheated vapor state in the T–s diagram (A New Phase Diagram: The T-S Diagram
at LearnThermo.com When used in a power cycle, the fluid expansion depends strongly on the nature of this saturation curve: *A "wet" fluid shows a negative saturation vapor curve. If overheating before the expansion is limited, a two-phase state is obtained at the end of the expansion. :
*An "
*A "dry" fluid shows a positive saturation vapor curve. It is in dry vapor state at the end of the expansion, and strongly overheated.
:
temperature–entropy diagram
In thermodynamics, a temperature–entropy (''T–s'') diagram is a thermodynamic diagram used to visualize changes to temperature () and specific entropy () during a thermodynamic process or cycle as the graph of a curve. It is a useful and c ...
).
The ''saturated liquid curve
Saturation, saturated, unsaturation or unsaturated may refer to:
Chemistry
* Saturation, a property of organic compounds referring to carbon-carbon bonds
**Saturated and unsaturated compounds
** Degree of unsaturation
**Saturated fat or fatty aci ...
'' is the curve separating the subcooled
The term subcooling (also called undercooling) refers to a liquid existing at a temperature below its normal boiling point. For example, water boils at 373 K; at room temperature (293 K) the water is termed "subcooled". A subcooled liqui ...
liquid state and the two-phase state in the T–s diagram.at LearnThermo.com When used in a power cycle, the fluid expansion depends strongly on the nature of this saturation curve: *A "wet" fluid shows a negative saturation vapor curve. If overheating before the expansion is limited, a two-phase state is obtained at the end of the expansion. :
*An "isentropic
In thermodynamics, an isentropic process is an idealized thermodynamic process that is both adiabatic and reversible. The work transfers of the system are frictionless, and there is no net transfer of heat or matter. Such an idealized proce ...
" fluid shows a vertical saturation vapor curve. It remains very close to the saturated vapor state after an hypothetical isentropic expansion.
:
*A "dry" fluid shows a positive saturation vapor curve. It is in dry vapor state at the end of the expansion, and strongly overheated.
:
See also
* Phase diagram *Working fluid
For fluid power, a working fluid is a gas or liquid that primarily transfers force, motion, or mechanical energy. In hydraulics, water or hydraulic fluid transfers force between hydraulic components such as hydraulic pumps, hydraulic cylinders, ...
* Working fluid selection
References
{{Thermodynamics-stub Thermodynamics Gases Phases of matter