System simulation of automotive refrigeration cycles
LIMPERICH, D., ET AL.
MARCH 7, 2005
Proceedings of the 4th International Modelica Conference
Hamburg, Germany, pp.193-199
Numerical simulation in the automotive design process is gaining increasing significance. This also applies for thermodynamic and thermo-hydraulic systems i.e. also for the air conditioning system (HVAC) of an automotive vehicle. In order to optimize the efficiency of HVAC-systems and to obtain a better understanding of the complex transient system behaviour of automotive refrigeration cycles a Modelica library named ACLib was developed in a joint research project by DaimlerChrysler AG, Airbus Deutschland GmbH and TUHH. It was based on the thermo-hydraulic
models of the free ThermoFluid library and was applied to automotive refrigeration cycles running on the refrigerants R134a and carbon dioxide in an early development stage, when only limited experimental data was available [1, 5].