Rheological study of two-phase secondary fluids for refrigeration and air conditioning.

Mylène Lubert-Martin (1, 2, 3) , Myriam Darbouret (1, 2, 3) , Jean-Michel Herri (1, 2, 3)

1 SPIN-ENSMSE - Centre Sciences des Processus Industriels et Naturels
2 ProcESS-ENSMSE - Département Procédés et évolution des systèmes avec solides
3 LPMG-EMSE - Laboratoire des Procédés en Milieux Granulaires

The two phase fluids have promising application in refrigeration thanks to their large cooling capacity and their storage ability. However, the lack of information on their properties makes the selection of a proper fluid uneasy. An experimental set-up inspired from the scrapped surface heat exchanger technology is presented in this paper. It was developed both to generate and to characterise slurries in a rheological point of view. The large range of temperature envisaged here allows enlarging the field of application of the technology to cooler temperatures (freezer applications) and to positive ones (air conditioning systems). The principle of the viscosity measurements is described on solutions of ethyl alcohol; a hydrate is also presented as an example of compound showing a dissociation temperature in the range concerned by air conditioning applications.

Mots clés: two-phase fluids; refrigeration; rheological

Domaines: Génie des procédés

Mylène Lubert-Martin, Myriam Darbouret, Jean-Michel Herri. Rheological study of two-phase secondary fluids for refrigeration and air conditioning.. 9e congrès de la SFGP. "Du rayonnement scientifique à la diffusion des technologies", Sep 2003, Saint-Nazaire, France. C10 pp. 89-96. ⟨hal-00841701⟩