Supercritical Hydrogen 1

[arimans76]

Hi Folks,
I have to heat up (from 20 °C to 600°C) a mix of Methane and Hydrogen under a pressure of 200 bar. I need the hydrogen´s thermophisical properties under those conditions. Does someone know some internet site or handbook where I can retrieve these properties?

THX

 

[25362]

Perry, Chemical Engineering Manual. I have the sixth edition. It has table 3-248b with properties (specific volume, enthalpy and entropy) up to 1000 K and 1000 bar.

http://webbook.nist.gov/chemistry

shows more thermophysical properties, but goes up to 126.9^oC and 1210 bar

 

[arimans76]

Does the Perry contain also the coefficient of thermal conductivity and the cinematic viscosity (or dynamic viscosity and density)?

 

[25362]

Thanks for the undeserved star.
The answer on Perry is regretfully no.
J.P. Holman's Heat Transfer (McGraw-Hill) Table A-6, shows these properties at atmospheric pressure up to 900 K.

Please note the expected changes due to pressure are small.

From the NIST site I got that at 125^oC the "additions" when going from 1 bar to 200 bar are: for specific heat, 1.5%; for absolute viscosity 3.4%, and for thermal conductivity, 5.4%. Which tells us that the Pr number practically doesn't change with pressure.

Sorry, that's all I could gather on hydrogen from my sources.

 

[arimans76]

I found this book:
R.D. McCarty, J. Hord, H.M. Roder (1981)

http://www.boulder.nist.gov/div838/Hydrogen/Publications/Publicationsmain.htm

It´s almost exaustive, there are almost all the hydrogen´s properties.

Thx again

 

[joerd]

The link that 25362 provided gives you all you need.

Cheers,
Joerd

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