Pressure and Maximum Content of Water in Saturated Air

Air pressure and maximum content of water in saturated air

The maximum water content in saturated air depends on the air pressure and temperature.

Gauge Pressure in bar

mass of water (kg per 100 m3) in saturated air

Gauge Pressure in psi

mass of water (lb per 100 ft3) in saturated air

Example - Water Extracted from an Air Compressor

100 m3 of free air enters a compressor at atmospheric conditions 20oC and 70% water content. The air leaves saturated at gauge pressure 8 bar and 50oC.

Based on the diagram above the water content in the entering air can be estimated to approximately 1.8 kg per 100 m3 free air. 70% of this maximum content is 1.26 kg per 100 m3.

The water content in the leaving air can be estimated to approximately 0.9 kg per 100 m3 free air.

The difference

    (1.26 kg) - (0.9 kg) per 100 m3 free air

        = 0.36 kg per 100 m3 free air

is extracted in the compressor.

Related Topics

  • Air Psychrometrics - The study of moist and humid air - air condition - psychrometric charts, Mollier diagrams, air temperature, absolute and relative humidity, moisture content and more
  • Gas and Compressed Air - Gas properties, capacities of pipelines, sizing of relief valves - air, LNG, LPG and more

Related Documents

Tag Search

Search the Engineering ToolBox

- "Search is the most efficient way to navigate the Engineering ToolBox!"

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/Plugin - enabled for use with the amazing, fun and free SketchUp Make and SketchUp Pro . Add the Engineering ToolBox extension to your SketchUp from the Sketchup Extension Warehouse!

Translate the Engineering ToolBox!
About the Engineering ToolBox!

Support the ToolBox

If you find the Engineering ToolBox useful and want this website to be available tomorrow - and the days after tomorrow - enable ads or make a contribution!

Contribute to the Engineering ToolBox