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Document IIF

Flexibilité de la technologie des pompes à chaleur chimiques à boucle.

Scalability of chemical looping heat pump technology.

Numéro : 1200

Auteurs : KIM J., JAMES N. A., GROLL E. A., BRAUN J. E., ZIVIANI D.

Résumé

Air conditioning, space heating, and refrigeration account for approximately 40% of the electricity usage in the U.S. residential and commercial building sector. To improve energy utilization and reduce energy consumption, novel heat pumping technologies are needed. The concept of a chemical looping heat pump (CLHP) system has been previously investigated by the authors and shown to have the potential for significant performance improvement compared with conventional vapor compression systems. The current work investigates the scalability of a CLHP system by means of a detailed thermodynamic model coupled with a 2D-discretized electrochemical cell model. Parametric studies on the cell size as well as flow rate of the working fluids (e.g. Isopropyl alcohol and Acetone) are performed to identify requirements for meeting target cooling capacities for residential and commercial building applications. Based on the simulation results, trade-offs between system performance and cell sizes are identified. For a 7 kW residential heat pump with a target COPc of 4.0, a minimum of 3000 stacks having a surface of 8,000 cm2 per stack (1,000 cm2 active area per cell) is required.

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Pages : 9

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Détails

  • Titre original : Scalability of chemical looping heat pump technology.
  • Identifiant de la fiche : 30027755
  • Langues : Anglais
  • Sujet : Technologie
  • Source : IIR Rankine Conference 2020.
  • Date d'édition : 31/07/2020
  • DOI : http://dx.doi.org/10.18462/iir.rankine.2020.1200

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