Water contents in air? 6

[Skogsgurra]

Hello all.

I feel totally lost here. I need to know how much water (g/m3) there is in air (normal pressure) if the temperature is +43 C and the relative humidity is 20 %.

How does one proceed? Things like Mollier diagrams and HX diagrams come to mind, but that does not seem to help much.

Or, to make things easier, does anyone have the answer?

 

[MintJulep]

Psychrometric chart has what you need.

 

[remp]

Approx 11.8 g water / kg dry air

 

[Skogsgurra]

Thanks a lot guys! Fast, useful, accurate. Isn't that what eng-tips is about?

 

[imok2]

skogsgurra
For future reference on some needed calculations, go here

http://www.connel.net/freeware/psychart.shtml

Roger

 

[quark]

Mint!

Star for you.

The following links will give some free and good programs (downloadable).

for psychrometric calculations and refrigerant properties

http://members.socket.net/~aschoen/

for Psychrometric charts

http://www.heatpipe.com/ProductsServices/forengineers/heat_pipe_psychrometrics.htm

for psychrometric charts

http://www.handsdownsoftware.com/

for plotting and calculating the process parameters on a psychrometric chart

http://www.handsdownsoftware.com/Downloads.htm

Regards,


Eng-Tips.com : Solving your problems before you get them.