Engineering ToolBox - Resources, Tools and Basic Information for Engineering and Design of Technical Applications!

Superheated Steam - Entropy

The entropy of steam superheated to temperatures above saturation points.

Sponsored Links

The entropy of superheated steam at different pressures and temperatures are indicated below:

For full table  - rotate the screen!

Superheated Steam - Entropy vs. Pressure
Absolute PressureSaturation TemperatureEntropy (kJ/kgK)
Steam Temperature (oC)
(kPa)(bar)
(oC)
120150180200230250280
150 1.5 111.4 7.239 7.419 7.557 7.644 7.767 7.845 7.957
200 2 120.2 7.279 7.420 7.507 7.631 7.710 7.822
250 2.5 127.4 7.169 7.311 7.400 7.525 7.604 7.717
350 3.5 138.9 6.998 7.146 7.237 7.364 7.444 7.558
400 4 143.6 6.929 7.079 7.171 7.299 7.380 7.495
500 5 151.8 6.965 7.059 7.190 7.272 7.388
600 6 158.8 6.869 6.966 7.100 7.183 7.300
700 7 165.0 6.786 6.886 7.022 7.107 7.225
800 8 170.4 6.712 6.815 6.954 7.040 7.156
900 9 175.4 6.645 6.751 6.893 6.980 7.101
1000 10 179.9 6.584 6.692 6.838 6.926 7.049
1100 11 184.4 6.638 6.787 6.876 7.001
1200 12 188.0 6.587 6.739 6.831 6.956
1400 14 195.0 6.494 6.653 6.748 6.877
1600 16 201.4 6.577 6.674 6.806
2000 20 212.4 6.440 6.546 6.685
2500 25 223.9 6.292 6.407 6.558
3500 35 242.5 6.173 6.349

If saturated steam is exposed to a surface with a higher temperature the temperature of the steam will increase above the evaporating temperature. The steam is then described as superheated by the temperature degrees above saturation temperature.

  • Note! Steam cannot be superheated whilst it is still in the contact with water, because additional heat will evaporate more water, cooling down the superheated steam.

Superheated steam is produced by passing saturated steam through an additional heat exchanger.

Superheated steam is also called

  • surcharged steam
  • anhydrous steam
  • steam gas
Sponsored Links

Related Topics

Related Documents

Sponsored Links

Engineering ToolBox - SketchUp Extension - Online 3D modeling!

3D Engineering ToolBox Extension to SketchUp - add parametric components to your SketchUp model

Add standard and customized parametric components - like flange beams, lumbers, piping, stairs and more - to your Sketchup model with the Engineering ToolBox - SketchUp Extension - enabled for use with older versions of the amazing SketchUp Make and the newer "up to date" SketchUp Pro . Add the Engineering ToolBox extension to your SketchUp Make/Pro from the Extension Warehouse !

Translate this Page

Translate this page to Your Own Language .

About the Engineering ToolBox!

Privacy Policy

We don't collect information from our users. More about

Citation

This page can be cited as

  • The Engineering ToolBox (2003). Superheated Steam - Entropy. [online] Available at: https://www.engineeringtoolbox.com/superheated-steam-entropy-d_100.html [Accessed Day Month Year].

Modify the access date according your visit.

close

3D Engineering ToolBox - draw and model technical applications! 2D Engineering ToolBox - create and share online diagram drawing templates! Engineering ToolBox Apps - mobile online and offline engineering applications!

Unit Converter

















































9.27.11

Sponsored Links
.