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Experimentally verified dynamic simulation model of a NH3/H2O-absorption refrigeration system.

Modèle de simulation dynamique d'un système frigorifique à absorption de NH3/H2O vérifié expérimentalement.

Résumé

The operation characteristics of thermally driven absorption refrigeration systems (ARS) are strongly dependent on their hydraulic integration. Therefore, varying operating conditions of the hydraulic supply have a great influence on the behaviour of ARS and lead to dynamic operation, which can affect the efficiency and is largely unexplored so far. To enable a simple investigation of ARS integration considering their dynamic behaviour and to develop modern, efficiency-enhancing control strategies, dynamic simulation models of ARS are developed in Modelica Code.
In this paper, a dynamic simulation model of an ARS with the working pair ammonia/water (NH3/H2O) is presented. The parameterization and the physical correlations of selected components of the simulation model are described. Afterwards, the simulation model is verified by comparing simulation results with measurement data of the NH3/H2O-ARS. Finally, the capabilities of the simulation model are demonstrated by performing a simulation-based analysis of the temperature glide of the refrigerant in the evaporator.

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Experimentally verified dynamic simulation model of a NH3/H2O-absorption refrigeration system

Pages : 7

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Détails

  • Titre original : Experimentally verified dynamic simulation model of a NH3/H2O-absorption refrigeration system.
  • Identifiant de la fiche : 30027949
  • Langues : Anglais
  • Sujet : Technologie
  • Source : 14th IIR-Gustav Lorentzen Conference on Natural Refrigerants(GL2020). Proceedings. Kyoto, Japon, December 7-9th 2020.
  • Date d'édition : 07/12/2020
  • DOI : http://dx.doi.org/10.18462/iir.gl.2020.1145

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