Engineering ToolBox - Resources, Tools and Basic Information for Engineering and Design of Technical Applications! Wet steam, dryness fraction and enthalpy.
The actual enthalpy of evaporated wet steam is the product of the dryness fraction -
ζ - and the specific enthalpy - h - from the s steam tables. Wet steam has less usable heat energy than dry saturated steam.
h t = h s ζ + (1 - ζ) h w (1)
h t= enthalpy of wet steam (kJ/kg, Btu/lb)
h s = enthalpy of steam (kJ/kg, Btu/lb)
ζ = dryness fraction
h w= enthalpy of saturated water or condensate (kJ/kg, Btu/lb)
The dryness fraction can be expressed as
ζ = w s / (w w + w s) (2)
ζ = dryness fraction
w w = mass of water (kg, lb)
w s = mass of steam (kg, lb) Related Topics Thermodynamics of steam and condensate systems. Related Documents Entropy and disorder. Air can be humidified by adding water or steam. Heat transfer when steam condensates. Tutorial to the basic physics behind flash steam generation Saturated Steam Table with steam properties as specific volume, density, specific enthalpy and specific entropy. Steam table with sensible, latent and total heat, and specific volume at different gauge pressures and temperatures. Saturated Steam Table with properties like boiling point, specific volume, density, specific enthalpy, specific heat and latent heat of vaporization. Definition and explanation of the terms standard state and standard enthalpy of formation, with listing of values for standard enthalpy and Gibbs free energy of formation, as well as standard entropy and molar heat capacity, of 370 inorganic compounds. An enthalpy and entropy chart for steam Vapor and steam enthalpy, specific enthalpy of saturated liquid, saturated vapor and superheated vapor. Basic steam thermodynamics - entropy diagram. Enthalpy of steam superheated to temperatures above it's boiling point. Internationally agreed, internally consistent, values for the thermodynamic properties (standard enthalpy of formation, entropy and [H°(298)-H°(0)]) of key chemical substances. An introduction to vapor and steam. Critical point is where vapor and liquid are indistinguishable and triple point is where ice, water and vapor coexist in thermodynamic equilibrium. Enthalpy-entropy diagram for water and steam. Introduction and definition of steam quality and dryness fraction including calculating wet steam enthalpy and specific volume. Wet steam and specific volume. Search
Search is the most efficient way to navigate the Engineering ToolBox.
About the Engineering ToolBox!
We don't collect information from our users. More about
This page can be cited as
The Engineering ToolBox (2008). Wet Steam - Enthalpy. [online] Available at: https://www.engineeringtoolbox.com/enthalpy-wet-steam-d_1048.html [Accessed Day Month Year].
Modify the access date according your visit.