Share

IIR document

Investigation of non-equilibrium effects during the depressurization of carbon dioxide.

Number: 0197

Author(s) : LOG A. M., MUNKEJORD S. T., HAMMER M., HAFNER A., DENG H., AUSTEGARD A.

Summary

Predicting the phase change of liquid CO2 during depressurization is highly relevant for the application in refrigeration units and for safety analysis in the context of CO2 capture and storage (CCS). For abrupt depressurization processes, nucleation of gas will not occur at equilibrium and the liquid becomes superheated. In this work, we analyze the experimental results of depressurization tests conducted in the ECCSEL depressurization facility in Trondheim for pure CO2 and determine the degree of superheat reached in the tests. The experiments include depressurization from 11-12 MPa to atmospheric pressure at different temperatures and the thermodynamic path in one of the cases passes near the critical point. The results agree well with the nucleation rate predicted by classical nucleation theory.

Available documents

Format PDF

Pages: 8 p.

Available

Free

Download

Details

  • Original title: Investigation of non-equilibrium effects during the depressurization of carbon dioxide.
  • Record ID : 30029774
  • Languages: English
  • Subject: Technology
  • Source: 15th IIR-Gustav Lorentzen Conference on Natural Refrigerants (GL2022). Proceedings. Trondheim, Norway, June 13-15th 2022.
  • Publication date: 2022/06/13
  • DOI: http://dx.doi.org/10.18462/iir.gl2022.0197
  • Document available for consultation in the library of the IIR headquarters only.

Links


See other articles from the proceedings (169)
See the conference proceedings

Indexing