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

Michael Wernhart*, René Rieberer, Sandra Zlabinger, Viktor Unterberger, Markus Gölles

*Korrespondierende/r Autor/in für diese Arbeit

Publikation: Beitrag in Buch/Bericht/KonferenzbandBeitrag in einem Konferenzband

Abstract

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.
Originalspracheenglisch
Titel14th IIR-Gustav Lorentzen Conference on Natural Refrigerants
Herausgeber (Verlag)International Institute of Refrigeration
PublikationsstatusAngenommen/In Druck - 2020
Veranstaltung14th IIR-Gustav Lorentzen Conference on Natural Refrigerants - Virtuell
Dauer: 6 Dez 20209 Dez 2020

Konferenz

Konferenz14th IIR-Gustav Lorentzen Conference on Natural Refrigerants
KurztitelGL 2020
OrtVirtuell
Zeitraum6/12/209/12/20

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