Recent content by francoisp

Thanks Hacksaw ! Unfortunately haven't got many HB of chemical engineering. found this link though: http://www.mrc-eng.com/Downloads/Moist%20Air%20Props%20English.pdf Looks interesting. They also seem to be using the Hyland and Wexler factor. Their equations for estimating the dew point looks...

Thanks for your comments, OK, Partially agree. However with reference to Psychrometric Tables and Charts from Zimmerman and Lavine (Ed 1964), the table goes much further than 200oC. For instance at 500oF (~277oC) with a mixing ratio of 0.6kg/kg the dew point would be about 84DegC (at Pressure...

Emissivity can vary with temperature, is this for ambient or other temperature ? Francois

Hello, I am trying to write a code to evaluate the mixing ratio, dew point temperature as a function of dry and wet bulb temperature. There are lots of correlation out there and the ASHRAE standard gives some useful hints and formulae. For the evaluation of water vapour pressure which is key...