Share

IIR document

CO2 hydrate formation kinetics and modelling of the available enthalpy of CO2 hydrate slurry in tank reactor.

Number: pap. ID: 526

Author(s) : JERBI S., DELAHAYE A., FOURNAISON L., et al.

Summary

The aim of this paper is to present the new results obtained in a conceptual design of a refrigeration system in which a hydrate forming gas/liquid mixture is used. The new circulation loop is equipped with a tank reactor allowing CO2-hydrate slurry to be studied. The results on CO2 hydrate formation kinetics showed that the undercooling degree decreases when the stirring velocity increases. Moreover, this study revealed that the kinetic varies in a range from 0.4 to 0.7 %.h-1 for various stirring rates between 445 to 1340 rpm. These results allowed CO2-HS formation to be optimized. A first experimental approach based on chiller power measurements was carried out to evaluate the available enthalpy of CO2-HS. These results were compared to a theoretical model based on a mass balance on CO2 in its various phases (liquid, gas, hydrate) and allowing available enthalpy of CO2-HS to be calculate. The comparison between theoretical and experimental methods for the estimation of the available enthalpy of CO2-HS, applied to the first experiments in the tank reactor, is in good agreement.

Available documents

Format PDF

Pages: 8 p.

Available

  • Public price

    20 €

  • Member price*

    Free

* Best rate depending on membership category (see the detailed benefits of individual and corporate memberships).

Details

  • Original title: CO2 hydrate formation kinetics and modelling of the available enthalpy of CO2 hydrate slurry in tank reactor.
  • Record ID : 30002030
  • Languages: English
  • Source: Proceedings of the 23rd IIR International Congress of Refrigeration: Prague, Czech Republic, August 21-26, 2011. Overarching theme: Refrigeration for Sustainable Development.
  • Publication date: 2011/08/21

Links


See other articles from the proceedings (569)
See the conference proceedings

Indexing