Автор: Torge Pfafferott, Gerhard Schmitz

Π“ΠΎΠ΄: 2024Π―Π·Ρ‹ΠΊ: АнглийскийВип: Π‘Ρ‚Π°Ρ‚ΡŒΠΈ
This paper presents the current results of the development of a Modelica library for CO2-refrigeration systems basedon the free Modelica library ThermoFluid. The development of the library is carried out in a research project of AirbusDeutschland and the TUHH and is focused on the aim to obtain a library for detailed numerical investigations ofrefrigeration systems with the rediscovered refrigerant carbon dioxide (CO2). A survey of the concept of an integratedon-board cooling system of airliners, the modelling language ModelicaTM and the CO2-library is given and the modellingof CO2-heat exchangers is described. A comparison with steady state results of heat exchangers shows a fair agreement.The presented transient simulation results are compared with experimental data showing also a fair agreement.

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