Thermodynamics (vapour pressures @ different relative humidities)

[danneman]

Hello bright minds,

I have been searching for vapour pressures at +55 degrees celsius from 10 % relative humidity up to 100% relative humidity, and I have trouble finding these values, even on the physcometric charts that I find. Have anyone any good input to this, or what the vapour pressure is at these 'states', please give me our feedback!

Thank you in advance

BR
Dan Anderson


-You only live once, but if you work it right, once is enough!

 

[ione]

The links below should help you

http://www.engineeringtoolbox.com/relative-humidity-air-d_687.html

http://www.engineeringtoolbox.com/water-vapor-saturation-pressure-air-d_689.html

http://gpengineeringsoft.com/pages/pdtpsychrocalc.html

 

[Compositepro]

At 55C water has one fixed vapor pressure. The partial pressure of water vapor will vary with relative humidity.

50%RH means that the partial pressure of water vapor in the air is equal to 50% of the vapor pressure of water at 55C.

Psychrometric charts are derived from the vapor pressure vs. temperature curve for water.