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1. Product families
Since the aim with these fluids is to produce cold at generally low temperatures by vaporizing the liquid, the triple points of these fluids must be at even lower temperatures. Their vapour pressures must therefore be fairly high or, if preferred, their boiling temperatures must be low, which implies the choice of simple molecules. We can thus use :
simple elements ;
pure compounds (inorganic or organic);
azeotropic mixtures, whose behavior is comparable to that of pure bodies, or zeotropic mixtures, whose behavior is more complex.
The simplest elements (hydrogen, helium, nitrogen, oxygen, etc.) enable the low temperatures used in cryogenic techniques to be reached. These cryogens are not generally used in compression cycles as described...
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Product families
Choosing a refrigerant
Bibliography
Software tools
Refprop http://www.nist.gov/srd/nist23.cfm
Solkane http://www.climatisation.froid.free.fr/
Colopack http://www.et.web.mek.dtu.dk/Coolpack/Files/Coolpack.exe
...Websites
Alliance froid climatisation environnement (regulations) http://www.afce.asso.fr/
Datafluids (texts on regulated refrigerants) http://www.datafluides.fr
Events
Interclima http://www.interclimaelec.com/
IPA Show http://www.ipa-web.com/
Cold Chain Forum http://www.coldchainforum.com/
IIR international...
Regulations
Annexes to the order of November 19, 2009 published in the Journal officiel no. 298 of December 24, 2009 and in the Bulletin officiel no. 2009-24 in the list of texts published in the Journal officiel NOR: DEVP0927337A (text not published in the Journal officiel).
Décret n° 2011-544 du 18 mai 2011 relatif aux attestations de prise en compte de la réglementation thermique et de réalisation d'une étude...
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Bitzer http://www.bitzer.fr
Climalife http://www.climalife.dehon.com/
...
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