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Document IIF

Évaluation de frigorigènes naturels pour la gestion thermique de bus de longue distance fonctionnant à la batterie électrique.

Assessment of natural refrigerants for thermal management in battery-electric long-distance buses.

Numéro : 1153

Auteurs : HELLMUTH J. F., POLLAK M., SCHULTE A., TEGETHOFF W., KÖHLER J.

Résumé

In electric buses, the thermal management system has a major influence on energy consumption and, therefore, the vehicle’s range. The thermal management system of an electrified long-distance bus faces competing goals such as passenger and driver comfort and minimum battery degradation or minimal energy consumption, making the design a challenge. A reversible heat pump is used for air conditioning of the bus cabin and battery cooling. To design the thermal management system and select a refrigerant, a physics-based full-vehicle model is used that considers cross-couplings and boundary conditions of real-world applications to assess natural refrigerants, R744 and R290, for the thermal management system. The model includes the drivetrain, the thermal management system and the bus cabin. The performance of a battery-electric bus on typical long-distance routes is considered, including fast-charging and winter and summer scenarios. Recommendations on the selection of appropriate refrigerants for each scenario are made based on the simulation.

Documents disponibles

Format PDF

Pages : 12 p.

Disponible

  • Prix public

    20 €

  • Prix membre*

    Gratuit

* meilleur tarif applicable selon le type d'adhésion (voir le détail des avantages des adhésions individuelles et collectives)

Détails

  • Titre original : Assessment of natural refrigerants for thermal management in battery-electric long-distance buses.
  • Identifiant de la fiche : 30032676
  • 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.gl2024.1153

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