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Vers une détermination des paramètres optimaux de conception d’un dispositif expérimental permettant d’étudier le transfert de chaleur avec du dioxyde de carbone dans des conditions supercritiques.

Towards defining the optimal design parameters for a test setup studying heat transfer with carbon dioxide at supercritical conditions.

Numéro : 1244

Auteurs : PEDANO C., PETAGNA P., MALL-GLEISSLE S.

Résumé

As the demand for environmentally friendly refrigeration technologies continues to grow, the use of natural refrigerants for the thermal management of detectors for High Energy Physics becomes more and more relevant. Whereas the use of boiling CO2 flows is well established at CERN for applications requiring cold conditions, this study focuses on the investigation of the heat transfer capabilities of carbon dioxide in supercritical conditions. In this regard, high thermal capacities and low values of density and viscosity are some of the main characteristics of fluids above their critical point. Furthermore, thanks to their inherent single-phase-like nature, supercritical fluids could allow for relatively simple fluid management in multibranched circuits. These features, combined with its critical temperature of 31 °C, make of supercritical carbon dioxide (sCO2) an exceptionally well-suited candidate for all thermal management applications where the electronics can be operated at temperatures above 32 °C. However, several points on this subject remain open in the available literature, and this calls for the need for additional accurate experimental observations. This work is centered around the development use of a dedicated test rig designed to explore the thermodynamic performance and efficiency of sCO2-based systems.

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Format PDF

Pages : 13 p.

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Détails

  • Titre original : Towards defining the optimal design parameters for a test setup studying heat transfer with carbon dioxide at supercritical conditions.
  • Identifiant de la fiche : 30032743
  • Langues : Anglais
  • Source : 16th IIR-Gustav Lorentzen Conference on Natural Refrigerants (GL2024). Proceedings. University of Maryland, College Park, Maryland, USA, August 11-14 2024
  • Date d'édition : 08/2024
  • DOI : http://dx.doi.org/10.18462/iir.gl2024.1244

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