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

Research output: Chapter in Book/Report/Conference proceedingConference paperpeer-review


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.
Original languageEnglish
Title of host publication14th IIR Gustav-Lorentzen Conference on Natural Fluids, GL 2020 - Proceedings
Editors Japan Society of Refrigerating and Air Conditioning Engineers
PublisherInternational Institute of Refrigeration
Number of pages7
ISBN (Electronic)978-2-36215-040-1
Publication statusPublished - Dec 2020
Event14th IIR-Gustav Lorentzen Conference on Natural Refrigerants: GL 2020 - Virtuell, Virtuell, Austria
Duration: 7 Dec 20209 Dec 2020

Publication series

NameRefrigeration Science and Technology
ISSN (Print)0151-1637


Conference14th IIR-Gustav Lorentzen Conference on Natural Refrigerants: GL 2020
Internet address


  • Ammonia/Water
  • ARS
  • Efficiency
  • Modelica
  • Operating Conditions
  • Transient

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanical Engineering
  • Electrical and Electronic Engineering
  • Control and Systems Engineering


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