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Water contents in air?
6

Water contents in air?

Water contents in air?

(OP)
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?

RE: Water contents in air?

Psychrometric chart has what you need.

RE: Water contents in air?

Approx 11.8 g water / kg dry air

RE: Water contents in air?

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

RE: Water contents in air?

2
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.

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